[med-svn] [spdlog] 01/03: Imported Upstream version 1.7

Michael Crusoe misterc-guest at moszumanska.debian.org
Sat May 14 18:06:53 UTC 2016


This is an automated email from the git hooks/post-receive script.

misterc-guest pushed a commit to branch master
in repository spdlog.

commit f484e8daacb83c126fa355571b580c751de8869f
Author: Michael R. Crusoe <crusoe at ucdavis.edu>
Date:   Sat May 14 10:59:49 2016 -0700

    Imported Upstream version 1.7
---
 .travis.yml                                     |    2 +-
 CMakeLists.txt                                  |   62 +
 LICENSE                                         |   45 +-
 README.md                                       |   10 +-
 bench/Makefile                                  |   16 +-
 bench/boost-bench-mt.cpp                        |    5 +
 bench/boost-bench.cpp                           |    4 +
 bench/easylogging-bench-mt.cpp                  |    5 +
 bench/easylogging-bench.cpp                     |    6 +
 bench/g2log-async.cpp                           |    5 +
 bench/glog-bench-mt.cpp                         |    5 +
 bench/glog-bench.cpp                            |    4 +
 bench/run_all.sh                                |   13 +-
 bench/spdlog-async.cpp                          |    8 +-
 bench/spdlog-bench-mt.cpp                       |    9 +-
 bench/spdlog-bench.cpp                          |    4 +
 bench/zf_log-bench-mt.cpp                       |   56 +
 bench/zf_log-bench.cpp                          |   27 +
 cmake/Config.cmake.in                           |   24 +
 example/CMakeLists.txt                          |   49 +
 example/bench.cpp                               |   33 +-
 example/example.cpp                             |   42 +-
 example/example.sln                             |   22 +
 example/example.vcxproj                         |   90 +
 example/utils.h                                 |   27 +-
 include/spdlog/async_logger.h                   |   40 +-
 include/spdlog/common.h                         |   30 +-
 include/spdlog/details/async_log_helper.h       |  152 +-
 include/spdlog/details/async_logger_impl.h      |   52 +-
 include/spdlog/details/file_helper.h            |   62 +-
 include/spdlog/details/format.cc                | 1577 +++----
 include/spdlog/details/format.h                 | 5149 ++++++++++++++---------
 include/spdlog/details/line_logger.h            |  221 -
 include/spdlog/details/line_logger_fwd.h        |   78 +
 include/spdlog/details/line_logger_impl.h       |  185 +
 include/spdlog/details/log_msg.h                |   35 +-
 include/spdlog/details/logger_impl.h            |   43 +-
 include/spdlog/details/mpmc_bounded_q.h         |   28 +-
 include/spdlog/details/null_mutex.h             |   27 +-
 include/spdlog/details/os.h                     |   90 +-
 include/spdlog/details/pattern_formatter_impl.h |   52 +-
 include/spdlog/details/registry.h               |   79 +-
 include/spdlog/details/spdlog_impl.h            |   45 +-
 include/spdlog/formatter.h                      |   37 +-
 include/spdlog/logger.h                         |   50 +-
 include/spdlog/sinks/android_sink.h             |   92 +
 include/spdlog/sinks/base_sink.h                |   39 +-
 include/spdlog/sinks/dist_sink.h                |   72 +
 include/spdlog/sinks/file_sinks.h               |   43 +-
 include/spdlog/sinks/msvc_sink.h                |   50 +
 include/spdlog/sinks/null_sink.h                |   34 +-
 include/spdlog/sinks/ostream_sink.h             |   34 +-
 include/spdlog/sinks/sink.h                     |   30 +-
 include/spdlog/sinks/stdout_sinks.h             |   33 +-
 include/spdlog/sinks/syslog_sink.h              |   39 +-
 include/spdlog/spdlog.h                         |   47 +-
 include/spdlog/tweakme.h                        |   33 +-
 tests/Makefile                                  |    2 +-
 tests/file_helper.cpp                           |   77 +
 tests/file_log.cpp                              |   53 +-
 tests/includes.h                                |    3 +
 tests/tests.vcxproj                             |   17 +-
 tests/tests.vcxproj.filters                     |    9 +
 tests/utils.cpp                                 |   45 +
 tests/utils.h                                   |   15 +
 65 files changed, 5370 insertions(+), 4002 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 3557a2f..6364b6a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -84,7 +84,7 @@ install:
   - sed -i 's/march=native/msse4.2/' example/Makefile
 
   - if [ ! -d build ]; then mkdir build; fi
-  - export CXX_FLAGS=""
+  - export CXX_FLAGS="-I${CHECKOUT_PATH}/include"
   - export CXX_LINKER_FLAGS=""
   - if [ -z "$BUILD_TYPE" ]; then export BUILD_TYPE=Release; fi
   - if [ "$ASAN" == "On"]; then export CXX_FLAGS="${CXX_FLAGS} -fsanitize=address,undefined,integer -fno-omit-frame-pointer -fno-sanitize=unsigned-integer-overflow"; fi
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..15553b1
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,62 @@
+#
+# Copyright(c) 2015 Ruslan Baratov.
+# Distributed under the MIT License (http://opensource.org/licenses/MIT)
+#
+
+cmake_minimum_required(VERSION 3.0)
+project(spdlog VERSION 1.0.0)
+
+add_library(spdlog INTERFACE)
+
+option(SPDLOG_BUILD_EXAMPLES "Build examples" OFF)
+
+target_include_directories(
+    spdlog
+    INTERFACE
+    "$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>"
+    "$<INSTALL_INTERFACE:include>"
+)
+
+if(SPDLOG_BUILD_EXAMPLES)
+  enable_testing()
+  add_subdirectory(example)
+endif()
+
+### Install ###
+# * https://github.com/forexample/package-example
+set(generated_dir "${CMAKE_CURRENT_BINARY_DIR}/generated")
+
+set(config_install_dir "lib/cmake/${PROJECT_NAME}")
+set(include_install_dir "include")
+
+set(version_config "${generated_dir}/${PROJECT_NAME}ConfigVersion.cmake")
+set(project_config "${generated_dir}/${PROJECT_NAME}Config.cmake")
+set(targets_export_name "${PROJECT_NAME}Targets")
+set(namespace "${PROJECT_NAME}::")
+
+include(CMakePackageConfigHelpers)
+write_basic_package_version_file(
+    "${version_config}" COMPATIBILITY SameMajorVersion
+)
+
+# Note: use 'targets_export_name'
+configure_file("cmake/Config.cmake.in" "${project_config}" @ONLY)
+
+install(
+    TARGETS spdlog
+    EXPORT "${targets_export_name}"
+    INCLUDES DESTINATION "${include_install_dir}"
+)
+
+install(DIRECTORY "include/spdlog" DESTINATION "${include_install_dir}")
+
+install(
+    FILES "${project_config}" "${version_config}"
+    DESTINATION "${config_install_dir}"
+)
+
+install(
+    EXPORT "${targets_export_name}"
+    NAMESPACE "${namespace}"
+    DESTINATION "${config_install_dir}"
+)
diff --git a/LICENSE b/LICENSE
index 00c32d1..a199709 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,23 +1,22 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+The MIT License (MIT)
+
+Copyright (c) 2015 Gabi Melman.                                       
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
diff --git a/README.md b/README.md
index 3d161cf..bc55968 100644
--- a/README.md
+++ b/README.md
@@ -3,11 +3,11 @@
 Very fast, header only, C++ logging library. [![Build Status](https://travis-ci.org/gabime/spdlog.svg?branch=master)](https://travis-ci.org/gabime/spdlog)
 
 ## Install
-Just copy the files to your build tree and use a C++11 compiler
+Just copy the source [folder](https://github.com/gabime/spdlog/tree/master/include/spdlog) to your build tree and use a C++11 compiler
 
 ## Platforms
  * Linux (gcc 4.8.1+, clang 3.5+)
- * Windows (visual studio 2013+, mingw with g++ 4.9.1+)
+ * Windows (visual studio 2013+, cygwin/mingw with g++ 4.9.1+)
  * Mac OSX (clang 3.5+)
 
 ##Features
@@ -36,11 +36,11 @@ Below are some [benchmarks](bench) comparing popular log libraries under Ubuntu
 #### Synchronous mode
 Time needed to log 1,000,000 lines in synchronous mode (in seconds, the best of 3 runs):
 
-|threads|boost log|glog   |easylogging |spdlog|
+|threads|boost log 1.54|glog   |easylogging |spdlog|
 |-------|:-------:|:-----:|----------:|------:|
 |1|       4.169s  |1.066s |0.975s     |0.302s|
-|10|     16.029   |3.032s |2.857s     |0.968s|
-|100|     15.008  |1.139s |4.512s     |0.497s|
+|10|     6.180s   |3.032s |2.857s     |0.968s|
+|100|     5.981s  |1.139s |4.512s     |0.497s|
 
 
 #### Asynchronous mode
diff --git a/bench/Makefile b/bench/Makefile
index c0edbd6..6331f21 100644
--- a/bench/Makefile
+++ b/bench/Makefile
@@ -1,9 +1,9 @@
 CXX	?= g++
-CXXFLAGS	= -march=native -Wall -Wextra -pedantic -std=c++11 -pthread -Wl,--no-as-needed  -I../include 
-CXX_RELEASE_FLAGS = -O3 -flto
+CXXFLAGS	= -march=native -Wall -Wextra -pedantic -std=c++11 -pthread -Wl,--no-as-needed  -I../include
+CXX_RELEASE_FLAGS = -O3 -flto -DNDEBUG
 
 
-binaries=spdlog-bench spdlog-bench-mt spdlog-async boost-bench boost-bench-mt glog-bench glog-bench-mt g2log-async easylogging-bench easylogging-bench-mt
+binaries=spdlog-bench spdlog-bench-mt spdlog-async zf_log-bench zf_log-bench-mt boost-bench boost-bench-mt glog-bench glog-bench-mt g2log-async easylogging-bench easylogging-bench-mt
 
 all: $(binaries)
 
@@ -15,9 +15,17 @@ spdlog-bench-mt: spdlog-bench-mt.cpp
 	
 spdlog-async: spdlog-async.cpp
 	$(CXX) spdlog-async.cpp -o spdlog-async  $(CXXFLAGS) $(CXX_RELEASE_FLAGS)
+
+
+ZF_LOG_FLAGS = -I../../zf_log.git/zf_log/
+zf_log-bench: zf_log-bench.cpp
+	$(CXX) zf_log-bench.cpp -o zf_log-bench  $(CXXFLAGS) $(CXX_RELEASE_FLAGS) $(ZF_LOG_FLAGS)
+
+zf_log-bench-mt: zf_log-bench-mt.cpp
+	$(CXX) zf_log-bench-mt.cpp -o zf_log-bench-mt  $(CXXFLAGS) $(CXX_RELEASE_FLAGS) $(ZF_LOG_FLAGS)
 	
 
-BOOST_FLAGS	= -DBOOST_LOG_DYN_LINK  -I/home/gabi/devel/boost_1_56_0/ -L/home/gabi/devel/boost_1_56_0/stage/lib -lboost_log  -lboost_log_setup -lboost_filesystem -lboost_system -lboost_thread -lboost_regex -lboost_date_time -lboost_chrono	
+BOOST_FLAGS	= -DBOOST_LOG_DYN_LINK  -I/usr/include -lboost_log  -lboost_log_setup -lboost_filesystem -lboost_system -lboost_thread -lboost_regex -lboost_date_time -lboost_chrono
 
 boost-bench: boost-bench.cpp
 	$(CXX) boost-bench.cpp -o boost-bench $(CXXFLAGS) $(BOOST_FLAGS) $(CXX_RELEASE_FLAGS)
diff --git a/bench/boost-bench-mt.cpp b/bench/boost-bench-mt.cpp
index 24967fe..d845fce 100644
--- a/bench/boost-bench-mt.cpp
+++ b/bench/boost-bench-mt.cpp
@@ -1,3 +1,8 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
 #include <thread>
 #include <vector>
 #include <atomic>
diff --git a/bench/boost-bench.cpp b/bench/boost-bench.cpp
index 3bc4fc2..7668544 100644
--- a/bench/boost-bench.cpp
+++ b/bench/boost-bench.cpp
@@ -1,3 +1,7 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #include <boost/log/core.hpp>
 #include <boost/log/trivial.hpp>
diff --git a/bench/easylogging-bench-mt.cpp b/bench/easylogging-bench-mt.cpp
index 99d5caa..98d1ae3 100644
--- a/bench/easylogging-bench-mt.cpp
+++ b/bench/easylogging-bench-mt.cpp
@@ -1,3 +1,8 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
 #include <thread>
 #include <vector>
 #include <atomic>
diff --git a/bench/easylogging-bench.cpp b/bench/easylogging-bench.cpp
index b289c81..a952cbd 100644
--- a/bench/easylogging-bench.cpp
+++ b/bench/easylogging-bench.cpp
@@ -1,3 +1,9 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+
 #include "easylogging++.h"
 
 _INITIALIZE_EASYLOGGINGPP
diff --git a/bench/g2log-async.cpp b/bench/g2log-async.cpp
index 1d6bc5f..9f9eb71 100644
--- a/bench/g2log-async.cpp
+++ b/bench/g2log-async.cpp
@@ -1,3 +1,8 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
 #include <thread>
 #include <vector>
 #include <atomic>
diff --git a/bench/glog-bench-mt.cpp b/bench/glog-bench-mt.cpp
index 5418c08..db193ae 100644
--- a/bench/glog-bench-mt.cpp
+++ b/bench/glog-bench-mt.cpp
@@ -1,3 +1,8 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
 #include <thread>
 #include <vector>
 #include <atomic>
diff --git a/bench/glog-bench.cpp b/bench/glog-bench.cpp
index 837fce5..cf7e70a 100644
--- a/bench/glog-bench.cpp
+++ b/bench/glog-bench.cpp
@@ -1,3 +1,7 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #include "glog/logging.h"
 
diff --git a/bench/run_all.sh b/bench/run_all.sh
index 94cc193..92fcd9e 100755
--- a/bench/run_all.sh
+++ b/bench/run_all.sh
@@ -24,13 +24,13 @@ bench_async ()
 		rm  -f logs/*
 		sleep 3
 	done;
-}  
+}
 
 
 echo "----------------------------------------------------------"
 echo "Single threaded benchmarks.. (1 thread,  1,000,000 lines)"
 echo "----------------------------------------------------------"
-for exe in boost-bench glog-bench easylogging-bench spdlog-bench;
+for exe in boost-bench glog-bench easylogging-bench zf_log-bench spdlog-bench;
 do
 	bench_exe $exe 1
 done;
@@ -38,7 +38,7 @@ done;
 echo "----------------------------------------------------------"
 echo "Multi threaded benchmarks.. (10 threads,  1,000,000 lines)"
 echo "----------------------------------------------------------"
-for exe in boost-bench-mt glog-bench-mt easylogging-bench-mt spdlog-bench-mt;
+for exe in boost-bench-mt glog-bench-mt easylogging-bench-mt zf_log-bench-mt spdlog-bench-mt;
 do
 	bench_exe $exe 10
 done;
@@ -46,11 +46,10 @@ done;
 echo "----------------------------------------------------------"
 echo "Multi threaded benchmarks.. (100 threads,  1,000,000 lines)"
 echo "----------------------------------------------------------"
-for exe in boost-bench-mt glog-bench-mt easylogging-bench-mt spdlog-bench-mt;
+for exe in boost-bench-mt glog-bench-mt easylogging-bench-mt zf_log-bench-mt spdlog-bench-mt;
 do
 	bench_exe $exe 100
 done;
-	
 
 echo "---------------------------------------------------------------"
 echo "Async, single threaded benchmark.. (1 thread,  1,000,000 lines)"
@@ -68,7 +67,6 @@ do
 	bench_async $exe 10
 done;
 
-
 echo "---------------------------------------------------------------"
 echo "Async, multi threaded benchmark.. (100 threads,  1,000,000 lines)"
 echo "---------------------------------------------------------------"
@@ -76,6 +74,3 @@ for exe in spdlog-async g2log-async
 do
 	bench_async $exe 100
 done;
-
-
-
diff --git a/bench/spdlog-async.cpp b/bench/spdlog-async.cpp
index 7307f39..0e2c118 100644
--- a/bench/spdlog-async.cpp
+++ b/bench/spdlog-async.cpp
@@ -1,10 +1,14 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #include <thread>
 #include <vector>
 #include <atomic>
 #include <iostream>
 #include <chrono>
-
+#include <cstdlib>
 #include "spdlog/spdlog.h"
 
 using namespace std;
@@ -18,7 +22,7 @@ int main(int argc, char* argv[])
 
     int thread_count = 10;
     if(argc > 1)
-        thread_count = atoi(argv[1]);
+        thread_count = ::atoi(argv[1]);
     int howmany = 1000000;
 
     spd::set_async_mode(1048576);
diff --git a/bench/spdlog-bench-mt.cpp b/bench/spdlog-bench-mt.cpp
index d69a01e..0492306 100644
--- a/bench/spdlog-bench-mt.cpp
+++ b/bench/spdlog-bench-mt.cpp
@@ -1,7 +1,12 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
 #include <thread>
 #include <vector>
 #include <atomic>
-
+#include <cstdlib>
 #include "spdlog/spdlog.h"
 
 
@@ -12,7 +17,7 @@ int main(int argc, char* argv[])
 
     int thread_count = 10;
     if(argc > 1)
-        thread_count = atoi(argv[1]);
+        thread_count = std::atoi(argv[1]);
 
     int howmany = 1000000;
 
diff --git a/bench/spdlog-bench.cpp b/bench/spdlog-bench.cpp
index e0b41f3..700a82b 100644
--- a/bench/spdlog-bench.cpp
+++ b/bench/spdlog-bench.cpp
@@ -1,3 +1,7 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #include "spdlog/spdlog.h"
 
diff --git a/bench/zf_log-bench-mt.cpp b/bench/zf_log-bench-mt.cpp
new file mode 100644
index 0000000..3463d7e
--- /dev/null
+++ b/bench/zf_log-bench-mt.cpp
@@ -0,0 +1,56 @@
+#include <thread>
+#include <vector>
+#include <atomic>
+#include <cstdlib>
+#include <unistd.h>
+#include <fcntl.h>
+#include <zf_log.c>
+
+const char g_path[] = "logs/zf_log.txt";
+int g_fd;
+
+static void output_callback(zf_log_message *msg)
+{
+	*msg->p = '\n';
+	write(g_fd, msg->buf, msg->p - msg->buf + 1);
+}
+
+using namespace std;
+
+int main(int argc, char* argv[])
+{
+	g_fd = open(g_path, O_APPEND|O_CREAT|O_WRONLY);
+	if (0 > g_fd)
+	{
+		ZF_LOGE_AUX(ZF_LOG_STDERR, "Failed to open log file: %s", g_path);
+		return -1;
+	}
+	zf_log_set_output_callback(ZF_LOG_PUT_STD, output_callback);
+
+    int thread_count = 10;
+    if(argc > 1)
+        thread_count = std::atoi(argv[1]);
+    int howmany = 1000000;
+    std::atomic<int > msg_counter {0};
+    vector<thread> threads;
+
+    for (int t = 0; t < thread_count; ++t)
+    {
+        threads.push_back(std::thread([&]()
+        {
+            while (true)
+            {
+                int counter = ++msg_counter;
+                if (counter > howmany) break;
+				ZF_LOGI("zf_log message #%i: This is some text for your pleasure", counter);
+            }
+        }));
+    }
+
+    for (auto &t:threads)
+    {
+        t.join();
+    };
+	close(g_fd);
+    return 0;
+}
diff --git a/bench/zf_log-bench.cpp b/bench/zf_log-bench.cpp
new file mode 100644
index 0000000..dfa2892
--- /dev/null
+++ b/bench/zf_log-bench.cpp
@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <zf_log.c>
+
+const char g_path[] = "logs/zf_log.txt";
+static FILE *g_f;
+
+static void output_callback(zf_log_message *msg)
+{
+	*msg->p = '\n';
+	fwrite(msg->buf, msg->p - msg->buf + 1, 1, g_f);
+}
+
+int main(int, char* [])
+{
+	g_f = fopen(g_path, "wb");
+	if (!g_f) {
+		ZF_LOGE_AUX(ZF_LOG_STDERR, "Failed to open log file: %s", g_path);
+		return -1;
+	}
+	zf_log_set_output_callback(ZF_LOG_PUT_STD, output_callback);
+
+    const int howmany = 1000000;
+    for(int i  = 0 ; i < howmany; ++i)
+		ZF_LOGI("zf_log message #%i: This is some text for your pleasure", i);
+	fclose(g_f);
+    return 0;
+}
diff --git a/cmake/Config.cmake.in b/cmake/Config.cmake.in
new file mode 100644
index 0000000..b59e23e
--- /dev/null
+++ b/cmake/Config.cmake.in
@@ -0,0 +1,24 @@
+# *************************************************************************/
+# * Copyright (c) 2015 Ruslan Baratov.                                    */
+# *                                                                       */
+# * Permission is hereby granted, free of charge, to any person obtaining */
+# * a copy of this software and associated documentation files (the       */
+# * "Software"), to deal in the Software without restriction, including   */
+# * without limitation the rights to use, copy, modify, merge, publish,   */
+# * distribute, sublicense, and/or sell copies of the Software, and to    */
+# * permit persons to whom the Software is furnished to do so, subject to */
+# * the following conditions:                                             */
+# *                                                                       */
+# * The above copyright notice and this permission notice shall be        */
+# * included in all copies or substantial portions of the Software.       */
+# *                                                                       */
+# * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+# * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+# * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+# * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+# * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+# * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+# * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+# *************************************************************************/
+
+include("${CMAKE_CURRENT_LIST_DIR}/@targets_export_name at .cmake")
diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
new file mode 100644
index 0000000..6ef158e
--- /dev/null
+++ b/example/CMakeLists.txt
@@ -0,0 +1,49 @@
+# *************************************************************************/
+# * Copyright (c) 2015 Ruslan Baratov.                                    */
+# *                                                                       */
+# * Permission is hereby granted, free of charge, to any person obtaining */
+# * a copy of this software and associated documentation files (the       */
+# * "Software"), to deal in the Software without restriction, including   */
+# * without limitation the rights to use, copy, modify, merge, publish,   */
+# * distribute, sublicense, and/or sell copies of the Software, and to    */
+# * permit persons to whom the Software is furnished to do so, subject to */
+# * the following conditions:                                             */
+# *                                                                       */
+# * The above copyright notice and this permission notice shall be        */
+# * included in all copies or substantial portions of the Software.       */
+# *                                                                       */
+# * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+# * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+# * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+# * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+# * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+# * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+# * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+# *************************************************************************/
+
+cmake_minimum_required(VERSION 3.0)
+project(SpdlogExamples)
+
+if(TARGET spdlog)
+  # Part of the main project
+  add_library(spdlog::spdlog ALIAS spdlog)
+else()
+  # Stand-alone build
+  find_package(spdlog CONFIG REQUIRED)
+endif()
+
+if (CMAKE_COMPILER_IS_GNUCXX)
+  set ( CMAKE_CXX_FLAGS "--std=c++11 -pthread")  
+  set ( CMAKE_EXE_LIKKER_FLAGS "-pthread")  
+endif ()
+
+add_executable(example example.cpp)
+target_link_libraries(example spdlog::spdlog)
+
+add_executable(benchmark bench.cpp)
+target_link_libraries(benchmark spdlog::spdlog)
+
+enable_testing()
+file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/logs")
+add_test(NAME RunExample COMMAND example)
+add_test(NAME RunBenchmark COMMAND benchmark)
diff --git a/example/bench.cpp b/example/bench.cpp
index ba76e2a..d45705b 100644
--- a/example/bench.cpp
+++ b/example/bench.cpp
@@ -1,35 +1,17 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 //
 // bench.cpp : spdlog benchmarks
 //
+#include <atomic>
+#include <cstdlib> // EXIT_FAILURE
 #include <iostream>
 #include <memory>
 #include <string>
 #include <thread>
-#include <atomic>
 #include "spdlog/spdlog.h"
 #include "spdlog/async_logger.h"
 #include "spdlog/sinks/file_sinks.h"
@@ -108,8 +90,9 @@ int main(int argc, char* argv[])
     {
         std::cerr << "Error: " << ex.what() << std::endl;
         perror("Last error");
+        return EXIT_FAILURE;
     }
-    return 0;
+    return EXIT_SUCCESS;
 }
 
 
diff --git a/example/example.cpp b/example/example.cpp
index 6159770..ac45bdd 100644
--- a/example/example.cpp
+++ b/example/example.cpp
@@ -1,30 +1,11 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 //
 // spdlog usage example
 //
+#include <cstdlib> // EXIT_FAILURE
 #include <iostream>
 #include "spdlog/spdlog.h"
 
@@ -92,8 +73,9 @@ int main(int, char*[])
         size_t q_size = 1048576; //queue size must be power of 2
         spdlog::set_async_mode(q_size);
         auto async_file = spd::daily_logger_st("async_file_logger", "logs/async_log.txt");
-        async_file->info() << "This is async log.." << "Should be very fast!";
-        spdlog::drop_all(); //Close all loggers
+        for (int i = 0; i < 100; ++i)
+            async_file->info("Async message #{}", i);
+
         //
         // syslog example. linux only..
         //
@@ -102,11 +84,19 @@ int main(int, char*[])
         auto syslog_logger = spd::syslog_logger("syslog", ident, LOG_PID);
         syslog_logger->warn("This is warning that will end up in syslog. This is Linux only!");
 #endif
+
+        //
+        //Release and close all loggers
+        //
+        spdlog::drop_all();
     }
+
     catch (const spd::spdlog_ex& ex)
     {
         std::cout << "Log failed: " << ex.what() << std::endl;
+        return EXIT_FAILURE;
     }
+    return EXIT_SUCCESS;
 }
 
 
diff --git a/example/example.sln b/example/example.sln
new file mode 100644
index 0000000..20a6a1f
--- /dev/null
+++ b/example/example.sln
@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2013
+VisualStudioVersion = 12.0.40629.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example", "example.vcxproj", "{9E5AB93A-0CCE-4BAC-9FCB-0FC9CB5EB8D2}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Win32 = Debug|Win32
+		Release|Win32 = Release|Win32
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{9E5AB93A-0CCE-4BAC-9FCB-0FC9CB5EB8D2}.Debug|Win32.ActiveCfg = Debug|Win32
+		{9E5AB93A-0CCE-4BAC-9FCB-0FC9CB5EB8D2}.Debug|Win32.Build.0 = Debug|Win32
+		{9E5AB93A-0CCE-4BAC-9FCB-0FC9CB5EB8D2}.Release|Win32.ActiveCfg = Release|Win32
+		{9E5AB93A-0CCE-4BAC-9FCB-0FC9CB5EB8D2}.Release|Win32.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/example/example.vcxproj b/example/example.vcxproj
new file mode 100644
index 0000000..a8218f4
--- /dev/null
+++ b/example/example.vcxproj
@@ -0,0 +1,90 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="example.cpp" />
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{9E5AB93A-0CCE-4BAC-9FCB-0FC9CB5EB8D2}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>.</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v140</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v140</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PrecompiledHeaderFile />
+      <PrecompiledHeaderOutputFile />
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PrecompiledHeaderFile />
+      <PrecompiledHeaderOutputFile />
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/example/utils.h b/example/utils.h
index 95dd925..b260f72 100644
--- a/example/utils.h
+++ b/example/utils.h
@@ -1,26 +1,7 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
diff --git a/include/spdlog/async_logger.h b/include/spdlog/async_logger.h
index 517ce92..be21501 100644
--- a/include/spdlog/async_logger.h
+++ b/include/spdlog/async_logger.h
@@ -1,26 +1,7 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
@@ -34,12 +15,13 @@
 //    3. will throw spdlog_ex upon log exceptions
 // Upong destruction, logs all remaining messages in the queue before destructing..
 
+#include <spdlog/common.h>
+#include <spdlog/logger.h>
+
 #include <chrono>
 #include <functional>
-#include "common.h"
-#include "logger.h"
-#include "spdlog.h"
-
+#include <string>
+#include <memory>
 
 namespace spdlog
 {
@@ -76,6 +58,7 @@ public:
                  const std::chrono::milliseconds& flush_interval_ms = std::chrono::milliseconds::zero());
 
 
+    void flush() override;
 protected:
     void _log_msg(details::log_msg& msg) override;
     void _set_formatter(spdlog::formatter_ptr msg_formatter) override;
@@ -87,4 +70,5 @@ private:
 }
 
 
-#include "./details/async_logger_impl.h"
+#include <spdlog/details/async_logger_impl.h>
+
diff --git a/include/spdlog/common.h b/include/spdlog/common.h
index 01b2212..269c881 100644
--- a/include/spdlog/common.h
+++ b/include/spdlog/common.h
@@ -1,26 +1,7 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
@@ -28,6 +9,7 @@
 #include <initializer_list>
 #include <chrono>
 #include <memory>
+#include <exception>
 
 //visual studio does not support noexcept yet
 #ifndef _MSC_VER
@@ -113,4 +95,4 @@ private:
 
 };
 
-} //spdlog
\ No newline at end of file
+} //spdlog
diff --git a/include/spdlog/details/async_log_helper.h b/include/spdlog/details/async_log_helper.h
index 59c1b2d..8555ef0 100644
--- a/include/spdlog/details/async_log_helper.h
+++ b/include/spdlog/details/async_log_helper.h
@@ -1,26 +1,7 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 // async log helper :
 // Process logs asynchronously using a back thread.
@@ -33,18 +14,21 @@
 
 #pragma once
 
+#include <spdlog/common.h>
+#include <spdlog/sinks/sink.h>
+#include <spdlog/details/mpmc_bounded_q.h>
+#include <spdlog/details/log_msg.h>
+#include <spdlog/details/os.h>
+#include <spdlog/formatter.h>
+
 #include <chrono>
-#include <thread>
-#include <atomic>
+#include <exception>
 #include <functional>
-
-#include "../common.h"
-#include "../sinks/sink.h"
-#include "./mpmc_bounded_q.h"
-#include "./log_msg.h"
-#include "./format.h"
-#include "os.h"
-
+#include <memory>
+#include <string>
+#include <thread>
+#include <utility>
+#include <vector>
 
 namespace spdlog
 {
@@ -55,6 +39,12 @@ class async_log_helper
 {
     // Async msg to move to/from the queue
     // Movable only. should never be copied
+    enum class async_msg_type
+    {
+        log,
+        flush,
+        terminate
+    };
     struct async_msg
     {
         std::string logger_name;
@@ -62,17 +52,23 @@ class async_log_helper
         log_clock::time_point time;
         size_t thread_id;
         std::string txt;
+        async_msg_type msg_type;
 
         async_msg() = default;
         ~async_msg() = default;
 
+
 async_msg(async_msg&& other) SPDLOG_NOEXCEPT:
         logger_name(std::move(other.logger_name)),
                     level(std::move(other.level)),
                     time(std::move(other.time)),
-                    txt(std::move(other.txt))
+                    txt(std::move(other.txt)),
+                    msg_type(std::move(other.msg_type))
         {}
 
+        async_msg(async_msg_type m_type) :msg_type(m_type)
+        {};
+
         async_msg& operator=(async_msg&& other) SPDLOG_NOEXCEPT
         {
             logger_name = std::move(other.logger_name);
@@ -80,8 +76,10 @@ async_msg(async_msg&& other) SPDLOG_NOEXCEPT:
             time = std::move(other.time);
             thread_id = other.thread_id;
             txt = std::move(other.txt);
+            msg_type = other.msg_type;
             return *this;
         }
+
         // never copy or assign. should only be moved..
         async_msg(const async_msg&) = delete;
         async_msg& operator=(async_msg& other) = delete;
@@ -92,10 +90,12 @@ async_msg(async_msg&& other) SPDLOG_NOEXCEPT:
             level(m.level),
             time(m.time),
             thread_id(m.thread_id),
-            txt(m.raw.data(), m.raw.size())
+            txt(m.raw.data(), m.raw.size()),
+            msg_type(async_msg_type::log)
         {}
 
 
+
         // copy into log_msg
         void fill_log_msg(log_msg &msg)
         {
@@ -130,6 +130,8 @@ public:
 
     void set_formatter(formatter_ptr);
 
+    void flush();
+
 
 private:
     formatter_ptr _formatter;
@@ -138,6 +140,11 @@ private:
     // queue of messages to log
     q_type _q;
 
+    bool _flush_requested;
+
+    bool _terminate_requested;
+
+
     // last exception thrown from the worker thread
     std::shared_ptr<spdlog_ex> _last_workerthread_ex;
 
@@ -153,14 +160,16 @@ private:
     // worker thread
     std::thread _worker_thread;
 
+    void push_msg(async_msg&& new_msg);
     // throw last worker thread exception or if worker thread is not active
+
     void throw_if_bad_worker();
 
     // worker thread main loop
     void worker_loop();
 
-    // pop next message from the queue and process it
-    // return true if a message was available (queue was not empty), will set the last_pop to the pop time
+    // pop next message from the queue and process it. will set the last_pop to the pop time
+    // return false if termination of the queue is required
     bool process_next_msg(log_clock::time_point& last_pop, log_clock::time_point& last_flush);
 
     void handle_flush_interval(log_clock::time_point& now, log_clock::time_point& last_flush);
@@ -168,8 +177,6 @@ private:
     // sleep,yield or return immediatly using the time passed since last message as a hint
     static void sleep_or_yield(const spdlog::log_clock::time_point& now, const log_clock::time_point& last_op_time);
 
-
-
 };
 }
 }
@@ -177,10 +184,18 @@ private:
 ///////////////////////////////////////////////////////////////////////////////
 // async_sink class implementation
 ///////////////////////////////////////////////////////////////////////////////
-inline spdlog::details::async_log_helper::async_log_helper(formatter_ptr formatter, const std::vector<sink_ptr>& sinks, size_t queue_size, const async_overflow_policy overflow_policy, const std::function<void()>& worker_warmup_cb, const std::chrono::milliseconds& flush_interval_ms):
+inline spdlog::details::async_log_helper::async_log_helper(
+    formatter_ptr formatter,
+    const std::vector<sink_ptr>& sinks,
+    size_t queue_size,
+    const async_overflow_policy overflow_policy,
+    const std::function<void()>& worker_warmup_cb,
+    const std::chrono::milliseconds& flush_interval_ms):
     _formatter(formatter),
     _sinks(sinks),
     _q(queue_size),
+    _flush_requested(false),
+    _terminate_requested(false),
     _overflow_policy(overflow_policy),
     _worker_warmup_cb(worker_warmup_cb),
     _flush_interval_ms(flush_interval_ms),
@@ -191,13 +206,12 @@ inline spdlog::details::async_log_helper::async_log_helper(formatter_ptr formatt
 // and wait for it to finish gracefully
 inline spdlog::details::async_log_helper::~async_log_helper()
 {
-
     try
     {
-        log(log_msg(level::off));
+        push_msg(async_msg(async_msg_type::terminate));
         _worker_thread.join();
     }
-    catch (...) //Dont crash if thread not joinable
+    catch (...) // don't crash in destructor
     {}
 }
 
@@ -205,8 +219,15 @@ inline spdlog::details::async_log_helper::~async_log_helper()
 //Try to push and block until succeeded
 inline void spdlog::details::async_log_helper::log(const details::log_msg& msg)
 {
+    push_msg(async_msg(msg));
+
+
+}
+
+//Try to push and block until succeeded
+inline void spdlog::details::async_log_helper::push_msg(details::async_log_helper::async_msg&& new_msg)
+{
     throw_if_bad_worker();
-    async_msg new_msg(msg);
     if (!_q.enqueue(std::move(new_msg)) && _overflow_policy != async_overflow_policy::discard_log_msg)
     {
         auto last_op_time = details::os::now();
@@ -221,6 +242,11 @@ inline void spdlog::details::async_log_helper::log(const details::log_msg& msg)
 
 }
 
+inline void spdlog::details::async_log_helper::flush()
+{
+    push_msg(async_msg(async_msg_type::flush));
+}
+
 inline void spdlog::details::async_log_helper::worker_loop()
 {
     try
@@ -251,31 +277,47 @@ inline bool spdlog::details::async_log_helper::process_next_msg(log_clock::time_
     if (_q.dequeue(incoming_async_msg))
     {
         last_pop = details::os::now();
-
-        if(incoming_async_msg.level == level::off)
-            return false;
-
-        incoming_async_msg.fill_log_msg(incoming_log_msg);
-        _formatter->format(incoming_log_msg);
-        for (auto &s : _sinks)
-            s->log(incoming_log_msg);
+        switch (incoming_async_msg.msg_type)
+        {
+        case async_msg_type::flush:
+            _flush_requested = true;
+            break;
+
+        case async_msg_type::terminate:
+            _flush_requested = true;
+            _terminate_requested = true;
+            break;
+
+        default:
+            incoming_async_msg.fill_log_msg(incoming_log_msg);
+            _formatter->format(incoming_log_msg);
+            for (auto &s : _sinks)
+                s->log(incoming_log_msg);
+        }
+        return true;
     }
-    else //empty queue
+
+    // Handle empty queue..
+    // This is the only place where the queue can terminate or flush to avoid losing messages already in the queue
+    else
     {
         auto now = details::os::now();
         handle_flush_interval(now, last_flush);
         sleep_or_yield(now, last_pop);
+        return !_terminate_requested;
+
     }
-    return true;
 }
 
 inline void spdlog::details::async_log_helper::handle_flush_interval(log_clock::time_point& now, log_clock::time_point& last_flush)
 {
-    if (_flush_interval_ms != std::chrono::milliseconds::zero() && now - last_flush >= _flush_interval_ms)
+    auto should_flush = _flush_requested || (_flush_interval_ms != std::chrono::milliseconds::zero() && now - last_flush >= _flush_interval_ms);
+    if (should_flush)
     {
         for (auto &s : _sinks)
             s->flush();
         now = last_flush = details::os::now();
+        _flush_requested = false;
     }
 }
 inline void spdlog::details::async_log_helper::set_formatter(formatter_ptr msg_formatter)
diff --git a/include/spdlog/details/async_logger_impl.h b/include/spdlog/details/async_logger_impl.h
index f60407e..140d45f 100644
--- a/include/spdlog/details/async_logger_impl.h
+++ b/include/spdlog/details/async_logger_impl.h
@@ -1,37 +1,20 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
-
-#include "./async_log_helper.h"
-
-//
 // Async Logger implementation
-// Use single async_sink (queue) to perform the logging in a worker thread
-//
+// Use an async_sink (queue per logger) to perform the logging in a worker thread
 
+#include <spdlog/details/async_log_helper.h>
+#include <spdlog/async_logger.h>
+
+#include <string>
+#include <functional>
+#include <chrono>
+#include <memory>
 
 template<class It>
 inline spdlog::async_logger::async_logger(const std::string& logger_name,
@@ -60,8 +43,17 @@ inline spdlog::async_logger::async_logger(const std::string& logger_name,
         const  async_overflow_policy overflow_policy,
         const std::function<void()>& worker_warmup_cb,
         const std::chrono::milliseconds& flush_interval_ms) :
-    async_logger(logger_name, { single_sink }, queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms) {}
+    async_logger(logger_name,
+{
+    single_sink
+}, queue_size, overflow_policy, worker_warmup_cb, flush_interval_ms) {}
+
 
+inline void spdlog::async_logger::flush()
+{
+
+    _async_log_helper->flush();
+}
 
 inline void spdlog::async_logger::_set_formatter(spdlog::formatter_ptr msg_formatter)
 {
diff --git a/include/spdlog/details/file_helper.h b/include/spdlog/details/file_helper.h
index 4ba556a..e563d00 100644
--- a/include/spdlog/details/file_helper.h
+++ b/include/spdlog/details/file_helper.h
@@ -1,26 +1,7 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
@@ -29,13 +10,13 @@
 // Can be set to auto flush on every line
 // Throw spdlog_ex exception on errors
 
+#include <spdlog/details/os.h>
+#include <spdlog/details/log_msg.h>
+
+#include <chrono>
+#include <cstdio>
 #include <string>
 #include <thread>
-#include <chrono>
-#include "os.h"
-
-
-
 
 namespace spdlog
 {
@@ -87,7 +68,8 @@ public:
 
     }
 
-    void flush() {
+    void flush()
+    {
         std::fflush(_fd);
     }
 
@@ -103,9 +85,9 @@ public:
     void write(const log_msg& msg)
     {
 
-        size_t size = msg.formatted.size();
+        size_t msg_size = msg.formatted.size();
         auto data = msg.formatted.data();
-        if (std::fwrite(data, 1, size, _fd) != size)
+        if (std::fwrite(data, 1, msg_size, _fd) != msg_size)
             throw spdlog_ex("Failed writing to file " + _filename);
 
         if (_force_flush)
@@ -122,16 +104,16 @@ public:
         if (fseek(_fd, 0, SEEK_END) != 0)
             throw spdlog_ex("fseek failed on file " + _filename);
 
-        auto size = ftell(_fd);
+        auto file_size = ftell(_fd);
 
         if(fseek(_fd, pos, SEEK_SET) !=0)
             throw spdlog_ex("fseek failed on file " + _filename);
 
-        if (size == -1)
+        if (file_size == -1)
             throw spdlog_ex("ftell failed on file " + _filename);
 
 
-        return size;
+        return file_size;
 
 
     }
@@ -143,16 +125,8 @@ public:
 
     static bool file_exists(const std::string& name)
     {
-        FILE* file;
-        if (!os::fopen_s(&file, name.c_str(), "r"))
-        {
-            fclose(file);
-            return true;
-        }
-        else
-        {
-            return false;
-        }
+
+        return os::file_exists(name);
     }
 
 
diff --git a/include/spdlog/details/format.cc b/include/spdlog/details/format.cc
index 873d827..c77e1ef 100644
--- a/include/spdlog/details/format.cc
+++ b/include/spdlog/details/format.cc
@@ -1,29 +1,29 @@
 /*
- Formatting library for C++
-
- Copyright (c) 2012 - 2015, Victor Zverovich
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- 1. Redistributions of source code must retain the above copyright notice, this
-    list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright notice,
-    this list of conditions and the following disclaimer in the documentation
-    and/or other materials provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
- ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
+Formatting library for C++
+
+Copyright (c) 2012 - 2015, Victor Zverovich
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
 
 #include "format.h"
 
@@ -34,6 +34,7 @@
 #include <climits>
 #include <cmath>
 #include <cstdarg>
+#include <cstddef>  // for std::ptrdiff_t
 
 #if defined(_WIN32) && defined(__MINGW32__)
 # include <cstring>
@@ -51,17 +52,6 @@
 
 using fmt::internal::Arg;
 
-// Check if exceptions are disabled.
-#if __GNUC__ && !__EXCEPTIONS
-# define FMT_EXCEPTIONS 0
-#endif
-#if _MSC_VER && !_HAS_EXCEPTIONS
-# define FMT_EXCEPTIONS 0
-#endif
-#ifndef FMT_EXCEPTIONS
-# define FMT_EXCEPTIONS 1
-#endif
-
 #if FMT_EXCEPTIONS
 # define FMT_TRY try
 # define FMT_CATCH(x) catch (x)
@@ -70,21 +60,13 @@ using fmt::internal::Arg;
 # define FMT_CATCH(x) if (false)
 #endif
 
-#ifndef FMT_THROW
-# if FMT_EXCEPTIONS
-#  define FMT_THROW(x) throw x
-# else
-#  define FMT_THROW(x) assert(false)
-# endif
-#endif
-
 #ifdef FMT_HEADER_ONLY
 # define FMT_FUNC inline
 #else
 # define FMT_FUNC
 #endif
 
-#if _MSC_VER
+#ifdef _MSC_VER
 # pragma warning(push)
 # pragma warning(disable: 4127)  // conditional expression is constant
 # pragma warning(disable: 4702)  // unreachable code
@@ -96,10 +78,10 @@ using fmt::internal::Arg;
 // Dummy implementations of strerror_r and strerror_s called if corresponding
 // system functions are not available.
 static inline fmt::internal::Null<> strerror_r(int, char *, ...) {
-  return fmt::internal::Null<>();
+    return fmt::internal::Null<>();
 }
 static inline fmt::internal::Null<> strerror_s(char *, std::size_t, ...) {
-  return fmt::internal::Null<>();
+    return fmt::internal::Null<>();
 }
 
 namespace fmt {
@@ -109,11 +91,11 @@ namespace {
 # define FMT_SNPRINTF snprintf
 #else  // _MSC_VER
 inline int fmt_snprintf(char *buffer, size_t size, const char *format, ...) {
-  va_list args;
-  va_start(args, format);
-  int result = vsnprintf_s(buffer, size, _TRUNCATE, format, args);
-  va_end(args);
-  return result;
+    va_list args;
+    va_start(args, format);
+    int result = vsnprintf_s(buffer, size, _TRUNCATE, format, args);
+    va_end(args);
+    return result;
 }
 # define FMT_SNPRINTF fmt_snprintf
 #endif  // _MSC_VER
@@ -128,25 +110,30 @@ inline int fmt_snprintf(char *buffer, size_t size, const char *format, ...) {
 // signed and unsigned integers.
 template <bool IsSigned>
 struct IntChecker {
-  template <typename T>
-  static bool fits_in_int(T value) {
-    unsigned max = INT_MAX;
-    return value <= max;
-  }
-  static bool fits_in_int(bool) { return true; }
+    template <typename T>
+    static bool fits_in_int(T value) {
+        unsigned max = INT_MAX;
+        return value <= max;
+    }
+    static bool fits_in_int(bool) {
+        return true;
+    }
 };
 
 template <>
 struct IntChecker<true> {
-  template <typename T>
-  static bool fits_in_int(T value) {
-    return value >= INT_MIN && value <= INT_MAX;
-  }
+    template <typename T>
+    static bool fits_in_int(T value) {
+        return value >= INT_MIN && value <= INT_MAX;
+    }
+    static bool fits_in_int(int) {
+        return true;
+    }
 };
 
 const char RESET_COLOR[] = "\x1b[0m";
 
-typedef void (*FormatFunc)(fmt::Writer &, int, fmt::StringRef);
+typedef void(*FormatFunc)(fmt::Writer &, int, fmt::StringRef);
 
 // Portable thread-safe version of strerror.
 // Sets buffer to point to a string describing the error code.
@@ -158,410 +145,322 @@ typedef void (*FormatFunc)(fmt::Writer &, int, fmt::StringRef);
 //   other  - failure
 // Buffer should be at least of size 1.
 int safe_strerror(
-    int error_code, char *&buffer, std::size_t buffer_size) FMT_NOEXCEPT {
-  FMT_ASSERT(buffer != 0 && buffer_size != 0, "invalid buffer");
-
-  class StrError {
-   private:
-    int error_code_;
-    char *&buffer_;
-    std::size_t buffer_size_;
-
-    // A noop assignment operator to avoid bogus warnings.
-    void operator=(const StrError &) {}
-
-    // Handle the result of XSI-compliant version of strerror_r.
-    int handle(int result) {
-      // glibc versions before 2.13 return result in errno.
-      return result == -1 ? errno : result;
-    }
+    int error_code, char *&buffer, std::size_t buffer_size) FMT_NOEXCEPT{
+    FMT_ASSERT(buffer != 0 && buffer_size != 0, "invalid buffer");
+
+    class StrError {
+    private:
+        int error_code_;
+        char *&buffer_;
+        std::size_t buffer_size_;
+
+        // A noop assignment operator to avoid bogus warnings.
+        void operator=(const StrError &) {}
+
+        // Handle the result of XSI-compliant version of strerror_r.
+        int handle(int result) {
+            // glibc versions before 2.13 return result in errno.
+            return result == -1 ? errno : result;
+        }
 
-    // Handle the result of GNU-specific version of strerror_r.
-    int handle(char *message) {
-      // If the buffer is full then the message is probably truncated.
-      if (message == buffer_ && strlen(buffer_) == buffer_size_ - 1)
-        return ERANGE;
-      buffer_ = message;
-      return 0;
-    }
+        // Handle the result of GNU-specific version of strerror_r.
+        int handle(char *message) {
+            // If the buffer is full then the message is probably truncated.
+            if (message == buffer_ && strlen(buffer_) == buffer_size_ - 1)
+                return ERANGE;
+            buffer_ = message;
+            return 0;
+        }
 
-    // Handle the case when strerror_r is not available.
-    int handle(fmt::internal::Null<>) {
-      return fallback(strerror_s(buffer_, buffer_size_, error_code_));
-    }
+        // Handle the case when strerror_r is not available.
+        int handle(fmt::internal::Null<>) {
+            return fallback(strerror_s(buffer_, buffer_size_, error_code_));
+        }
 
-    // Fallback to strerror_s when strerror_r is not available.
-    int fallback(int result) {
-      // If the buffer is full then the message is probably truncated.
-      return result == 0 && strlen(buffer_) == buffer_size_ - 1 ?
+        // Fallback to strerror_s when strerror_r is not available.
+        int fallback(int result) {
+            // If the buffer is full then the message is probably truncated.
+            return result == 0 && strlen(buffer_) == buffer_size_ - 1 ?
             ERANGE : result;
-    }
+        }
 
-    // Fallback to strerror if strerror_r and strerror_s are not available.
-    int fallback(fmt::internal::Null<>) {
-      errno = 0;
-      buffer_ = strerror(error_code_);
-      return errno;
-    }
+        // Fallback to strerror if strerror_r and strerror_s are not available.
+        int fallback(fmt::internal::Null<>) {
+            errno = 0;
+            buffer_ = strerror(error_code_);
+            return errno;
+        }
 
-   public:
-    StrError(int err_code, char *&buf, std::size_t buf_size)
-      : error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {}
+    public:
+        StrError(int err_code, char *&buf, std::size_t buf_size)
+            : error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {}
 
-    int run() {
-      strerror_r(0, 0, "");  // Suppress a warning about unused strerror_r.
-      return handle(strerror_r(error_code_, buffer_, buffer_size_));
-    }
-  };
-  return StrError(error_code, buffer, buffer_size).run();
+        int run() {
+            strerror_r(0, 0, "");  // Suppress a warning about unused strerror_r.
+            return handle(strerror_r(error_code_, buffer_, buffer_size_));
+        }
+    };
+    return StrError(error_code, buffer, buffer_size).run();
 }
 
 void format_error_code(fmt::Writer &out, int error_code,
-                       fmt::StringRef message) FMT_NOEXCEPT {
-  // Report error code making sure that the output fits into
-  // INLINE_BUFFER_SIZE to avoid dynamic memory allocation and potential
-  // bad_alloc.
-  out.clear();
-  static const char SEP[] = ": ";
-  static const char ERROR_STR[] = "error ";
-  fmt::internal::IntTraits<int>::MainType ec_value = error_code;
-  // Subtract 2 to account for terminating null characters in SEP and ERROR_STR.
-  std::size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2;
-  error_code_size += fmt::internal::count_digits(ec_value);
-  if (message.size() <= fmt::internal::INLINE_BUFFER_SIZE - error_code_size)
-    out << message << SEP;
-  out << ERROR_STR << error_code;
-  assert(out.size() <= fmt::internal::INLINE_BUFFER_SIZE);
+                       fmt::StringRef message) FMT_NOEXCEPT{
+    // Report error code making sure that the output fits into
+    // INLINE_BUFFER_SIZE to avoid dynamic memory allocation and potential
+    // bad_alloc.
+    out.clear();
+    static const char SEP[] = ": ";
+    static const char ERROR_STR[] = "error ";
+    fmt::internal::IntTraits<int>::MainType ec_value = error_code;
+    // Subtract 2 to account for terminating null characters in SEP and ERROR_STR.
+    std::size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2;
+    error_code_size += fmt::internal::count_digits(ec_value);
+    if (message.size() <= fmt::internal::INLINE_BUFFER_SIZE - error_code_size)
+        out << message << SEP;
+    out << ERROR_STR << error_code;
+    assert(out.size() <= fmt::internal::INLINE_BUFFER_SIZE);
 }
 
 void report_error(FormatFunc func,
-    int error_code, fmt::StringRef message) FMT_NOEXCEPT {
-  fmt::MemoryWriter full_message;
-  func(full_message, error_code, message);
-  // Use Writer::data instead of Writer::c_str to avoid potential memory
-  // allocation.
-  std::fwrite(full_message.data(), full_message.size(), 1, stderr);
-  std::fputc('\n', stderr);
+                  int error_code, fmt::StringRef message) FMT_NOEXCEPT{
+    fmt::MemoryWriter full_message;
+    func(full_message, error_code, message);
+    // Use Writer::data instead of Writer::c_str to avoid potential memory
+    // allocation.
+    std::fwrite(full_message.data(), full_message.size(), 1, stderr);
+    std::fputc('\n', stderr);
 }
 
 // IsZeroInt::visit(arg) returns true iff arg is a zero integer.
 class IsZeroInt : public fmt::internal::ArgVisitor<IsZeroInt, bool> {
- public:
-  template <typename T>
-  bool visit_any_int(T value) { return value == 0; }
-};
-
-// Parses an unsigned integer advancing s to the end of the parsed input.
-// This function assumes that the first character of s is a digit.
-template <typename Char>
-int parse_nonnegative_int(const Char *&s) {
-  assert('0' <= *s && *s <= '9');
-  unsigned value = 0;
-  do {
-    unsigned new_value = value * 10 + (*s++ - '0');
-    // Check if value wrapped around.
-    if (new_value < value) {
-      value = UINT_MAX;
-      break;
+public:
+    template <typename T>
+    bool visit_any_int(T value) {
+        return value == 0;
     }
-    value = new_value;
-  } while ('0' <= *s && *s <= '9');
-  if (value > INT_MAX)
-    FMT_THROW(fmt::FormatError("number is too big"));
-  return value;
-}
-
-template <typename Char>
-inline bool is_name_start(Char c) {
-  return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c;
-}
-
-inline void require_numeric_argument(const Arg &arg, char spec) {
-  if (arg.type > Arg::LAST_NUMERIC_TYPE) {
-    std::string message =
-        fmt::format("format specifier '{}' requires numeric argument", spec);
-    FMT_THROW(fmt::FormatError(message));
-  }
-}
-
-template <typename Char>
-void check_sign(const Char *&s, const Arg &arg) {
-  char sign = static_cast<char>(*s);
-  require_numeric_argument(arg, sign);
-  if (arg.type == Arg::UINT || arg.type == Arg::ULONG_LONG) {
-    FMT_THROW(fmt::FormatError(fmt::format(
-      "format specifier '{}' requires signed argument", sign)));
-  }
-  ++s;
-}
+};
 
 // Checks if an argument is a valid printf width specifier and sets
 // left alignment if it is negative.
 class WidthHandler : public fmt::internal::ArgVisitor<WidthHandler, unsigned> {
- private:
-  fmt::FormatSpec &spec_;
+private:
+    fmt::FormatSpec &spec_;
 
-  FMT_DISALLOW_COPY_AND_ASSIGN(WidthHandler);
+    FMT_DISALLOW_COPY_AND_ASSIGN(WidthHandler);
 
- public:
-  explicit WidthHandler(fmt::FormatSpec &spec) : spec_(spec) {}
+public:
+    explicit WidthHandler(fmt::FormatSpec &spec) : spec_(spec) {}
 
-  void report_unhandled_arg() {
-    FMT_THROW(fmt::FormatError("width is not integer"));
-  }
+    void report_unhandled_arg() {
+        FMT_THROW(fmt::FormatError("width is not integer"));
+    }
 
-  template <typename T>
-  unsigned visit_any_int(T value) {
-    typedef typename fmt::internal::IntTraits<T>::MainType UnsignedType;
-    UnsignedType width = value;
-    if (fmt::internal::is_negative(value)) {
-      spec_.align_ = fmt::ALIGN_LEFT;
-      width = 0 - width;
+    template <typename T>
+    unsigned visit_any_int(T value) {
+        typedef typename fmt::internal::IntTraits<T>::MainType UnsignedType;
+        UnsignedType width = value;
+        if (fmt::internal::is_negative(value)) {
+            spec_.align_ = fmt::ALIGN_LEFT;
+            width = 0 - width;
+        }
+        if (width > INT_MAX)
+            FMT_THROW(fmt::FormatError("number is too big"));
+        return static_cast<unsigned>(width);
     }
-    if (width > INT_MAX)
-      FMT_THROW(fmt::FormatError("number is too big"));
-    return static_cast<unsigned>(width);
-  }
 };
 
 class PrecisionHandler :
     public fmt::internal::ArgVisitor<PrecisionHandler, int> {
- public:
-  void report_unhandled_arg() {
-    FMT_THROW(fmt::FormatError("precision is not integer"));
-  }
-
-  template <typename T>
-  int visit_any_int(T value) {
-    if (!IntChecker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
-      FMT_THROW(fmt::FormatError("number is too big"));
-    return static_cast<int>(value);
-  }
+public:
+    void report_unhandled_arg() {
+        FMT_THROW(fmt::FormatError("precision is not integer"));
+    }
+
+    template <typename T>
+    int visit_any_int(T value) {
+        if (!IntChecker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
+            FMT_THROW(fmt::FormatError("number is too big"));
+        return static_cast<int>(value);
+    }
 };
 
 // Converts an integer argument to an integral type T for printf.
 template <typename T>
 class ArgConverter : public fmt::internal::ArgVisitor<ArgConverter<T>, void> {
- private:
-  fmt::internal::Arg &arg_;
-  wchar_t type_;
-
-  FMT_DISALLOW_COPY_AND_ASSIGN(ArgConverter);
-
- public:
-  ArgConverter(fmt::internal::Arg &arg, wchar_t type)
-    : arg_(arg), type_(type) {}
-
-  template <typename U>
-  void visit_any_int(U value) {
-    bool is_signed = type_ == 'd' || type_ == 'i';
-    using fmt::internal::Arg;
-    if (sizeof(T) <= sizeof(int)) {
-      // Extra casts are used to silence warnings.
-      if (is_signed) {
-        arg_.type = Arg::INT;
-        arg_.int_value = static_cast<int>(static_cast<T>(value));
-      } else {
-        arg_.type = Arg::UINT;
-        arg_.uint_value = static_cast<unsigned>(
-            static_cast<typename fmt::internal::MakeUnsigned<T>::Type>(value));
-      }
-    } else {
-      if (is_signed) {
-        arg_.type = Arg::LONG_LONG;
-        arg_.long_long_value =
-            static_cast<typename fmt::internal::MakeUnsigned<U>::Type>(value);
-      } else {
-        arg_.type = Arg::ULONG_LONG;
-        arg_.ulong_long_value =
-            static_cast<typename fmt::internal::MakeUnsigned<U>::Type>(value);
-      }
+private:
+    fmt::internal::Arg &arg_;
+    wchar_t type_;
+
+    FMT_DISALLOW_COPY_AND_ASSIGN(ArgConverter);
+
+public:
+    ArgConverter(fmt::internal::Arg &arg, wchar_t type)
+        : arg_(arg), type_(type) {}
+
+    void visit_bool(bool value) {
+        if (type_ != 's')
+            visit_any_int(value);
+    }
+
+    template <typename U>
+    void visit_any_int(U value) {
+        bool is_signed = type_ == 'd' || type_ == 'i';
+        using fmt::internal::Arg;
+        if (sizeof(T) <= sizeof(int)) {
+            // Extra casts are used to silence warnings.
+            if (is_signed) {
+                arg_.type = Arg::INT;
+                arg_.int_value = static_cast<int>(static_cast<T>(value));
+            }
+            else {
+                arg_.type = Arg::UINT;
+                arg_.uint_value = static_cast<unsigned>(
+                                      static_cast<typename fmt::internal::MakeUnsigned<T>::Type>(value));
+            }
+        }
+        else {
+            if (is_signed) {
+                arg_.type = Arg::LONG_LONG;
+                arg_.long_long_value =
+                    static_cast<typename fmt::internal::MakeUnsigned<U>::Type>(value);
+            }
+            else {
+                arg_.type = Arg::ULONG_LONG;
+                arg_.ulong_long_value =
+                    static_cast<typename fmt::internal::MakeUnsigned<U>::Type>(value);
+            }
+        }
     }
-  }
 };
 
 // Converts an integer argument to char for printf.
 class CharConverter : public fmt::internal::ArgVisitor<CharConverter, void> {
- private:
-  fmt::internal::Arg &arg_;
+private:
+    fmt::internal::Arg &arg_;
 
-  FMT_DISALLOW_COPY_AND_ASSIGN(CharConverter);
+    FMT_DISALLOW_COPY_AND_ASSIGN(CharConverter);
 
- public:
-  explicit CharConverter(fmt::internal::Arg &arg) : arg_(arg) {}
+public:
+    explicit CharConverter(fmt::internal::Arg &arg) : arg_(arg) {}
 
-  template <typename T>
-  void visit_any_int(T value) {
-    arg_.type = Arg::CHAR;
-    arg_.int_value = static_cast<char>(value);
-  }
+    template <typename T>
+    void visit_any_int(T value) {
+        arg_.type = Arg::CHAR;
+        arg_.int_value = static_cast<char>(value);
+    }
 };
 }  // namespace
 
 namespace internal {
 
-template <typename Impl, typename Char>
-class BasicArgFormatter : public ArgVisitor<Impl, void> {
- private:
-  BasicWriter<Char> &writer_;
-  FormatSpec &spec_;
-
-  FMT_DISALLOW_COPY_AND_ASSIGN(BasicArgFormatter);
-
- protected:
-  BasicWriter<Char> &writer() { return writer_; }
-  const FormatSpec &spec() const { return spec_; }
-
- public:
-  BasicArgFormatter(BasicWriter<Char> &w, FormatSpec &s)
-  : writer_(w), spec_(s) {}
-
-  template <typename T>
-  void visit_any_int(T value) { writer_.write_int(value, spec_); }
-
-  template <typename T>
-  void visit_any_double(T value) { writer_.write_double(value, spec_); }
-
-  void visit_bool(bool value) {
-    if (spec_.type_) {
-      writer_.write_int(value, spec_);
-      return;
-    }
-    const char *str_value = value ? "true" : "false";
-    Arg::StringValue<char> str = { str_value, strlen(str_value) };
-    writer_.write_str(str, spec_);
-  }
-
-  void visit_char(int value) {
-    if (spec_.type_ && spec_.type_ != 'c') {
-      spec_.flags_ |= CHAR_FLAG;
-      writer_.write_int(value, spec_);
-      return;
+template <typename Char>
+class PrintfArgFormatter :
+    public ArgFormatterBase<PrintfArgFormatter<Char>, Char> {
+
+    void write_null_pointer() {
+        this->spec().type_ = 0;
+        this->write("(nil)");
+    }
+
+    typedef ArgFormatterBase<PrintfArgFormatter<Char>, Char> Base;
+
+public:
+    PrintfArgFormatter(BasicWriter<Char> &w, FormatSpec &s)
+        : ArgFormatterBase<PrintfArgFormatter<Char>, Char>(w, s) {}
+
+    void visit_bool(bool value) {
+        FormatSpec &fmt_spec = this->spec();
+        if (fmt_spec.type_ != 's')
+            return this->visit_any_int(value);
+        fmt_spec.type_ = 0;
+        this->write(value);
+    }
+
+    void visit_char(int value) {
+        const FormatSpec &fmt_spec = this->spec();
+        BasicWriter<Char> &w = this->writer();
+        if (fmt_spec.type_ && fmt_spec.type_ != 'c')
+            w.write_int(value, fmt_spec);
+        typedef typename BasicWriter<Char>::CharPtr CharPtr;
+        CharPtr out = CharPtr();
+        if (fmt_spec.width_ > 1) {
+            Char fill = ' ';
+            out = w.grow_buffer(fmt_spec.width_);
+            if (fmt_spec.align_ != ALIGN_LEFT) {
+                std::fill_n(out, fmt_spec.width_ - 1, fill);
+                out += fmt_spec.width_ - 1;
+            }
+            else {
+                std::fill_n(out + 1, fmt_spec.width_ - 1, fill);
+            }
+        }
+        else {
+            out = w.grow_buffer(1);
+        }
+        *out = static_cast<Char>(value);
     }
-    if (spec_.align_ == ALIGN_NUMERIC || spec_.flags_ != 0)
-      FMT_THROW(FormatError("invalid format specifier for char"));
-    typedef typename BasicWriter<Char>::CharPtr CharPtr;
-    Char fill = internal::CharTraits<Char>::cast(spec_.fill());
-    CharPtr out = CharPtr();
-    if (spec_.width_ > 1) {
-      out = writer_.grow_buffer(spec_.width_);
-      if (spec_.align_ == ALIGN_RIGHT) {
-        std::fill_n(out, spec_.width_ - 1, fill);
-        out += spec_.width_ - 1;
-      } else if (spec_.align_ == ALIGN_CENTER) {
-        out = writer_.fill_padding(out, spec_.width_, 1, fill);
-      } else {
-        std::fill_n(out + 1, spec_.width_ - 1, fill);
-      }
-    } else {
-      out = writer_.grow_buffer(1);
+
+    void visit_cstring(const char *value) {
+        if (value)
+            Base::visit_cstring(value);
+        else if (this->spec().type_ == 'p')
+            write_null_pointer();
+        else
+            this->write("(null)");
     }
-    *out = internal::CharTraits<Char>::cast(value);
-  }
-
-  void visit_string(Arg::StringValue<char> value) {
-    writer_.write_str(value, spec_);
-  }
-
-  using ArgVisitor<Impl, void>::visit_wstring;
-
-  void visit_wstring(Arg::StringValue<Char> value) {
-    writer_.write_str(value, spec_);
-  }
-
-  void visit_pointer(const void *value) {
-    if (spec_.type_ && spec_.type_ != 'p')
-      report_unknown_type(spec_.type_, "pointer");
-    spec_.flags_ = HASH_FLAG;
-    spec_.type_ = 'x';
-    writer_.write_int(reinterpret_cast<uintptr_t>(value), spec_);
-  }
-};
 
-// An argument formatter.
-template <typename Char>
-class ArgFormatter : public BasicArgFormatter<ArgFormatter<Char>, Char> {
- private:
-  BasicFormatter<Char> &formatter_;
-  const Char *format_;
-
- public:
-  ArgFormatter(BasicFormatter<Char> &f, FormatSpec &s, const Char *fmt)
-  : BasicArgFormatter<ArgFormatter<Char>, Char>(f.writer(), s),
-    formatter_(f), format_(fmt) {}
-
-  void visit_custom(Arg::CustomValue c) {
-    c.format(&formatter_, c.value, &format_);
-  }
-};
+    void visit_pointer(const void *value) {
+        if (value)
+            return Base::visit_pointer(value);
+        this->spec().type_ = 0;
+        write_null_pointer();
+    }
 
-template <typename Char>
-class PrintfArgFormatter :
-    public BasicArgFormatter<PrintfArgFormatter<Char>, Char> {
- public:
-  PrintfArgFormatter(BasicWriter<Char> &w, FormatSpec &s)
-  : BasicArgFormatter<PrintfArgFormatter<Char>, Char>(w, s) {}
-
-  void visit_char(int value) {
-    const FormatSpec &fmt_spec = this->spec();
-    BasicWriter<Char> &w = this->writer();
-    if (fmt_spec.type_ && fmt_spec.type_ != 'c')
-      w.write_int(value, fmt_spec);
-    typedef typename BasicWriter<Char>::CharPtr CharPtr;
-    CharPtr out = CharPtr();
-    if (fmt_spec.width_ > 1) {
-      Char fill = ' ';
-      out = w.grow_buffer(fmt_spec.width_);
-      if (fmt_spec.align_ != ALIGN_LEFT) {
-        std::fill_n(out, fmt_spec.width_ - 1, fill);
-        out += fmt_spec.width_ - 1;
-      } else {
-        std::fill_n(out + 1, fmt_spec.width_ - 1, fill);
-      }
-    } else {
-      out = w.grow_buffer(1);
+    void visit_custom(Arg::CustomValue c) {
+        BasicFormatter<Char> formatter(ArgList(), this->writer());
+        const Char format_str[] = { '}', 0 };
+        const Char *format = format_str;
+        c.format(&formatter, c.value, &format);
     }
-    *out = static_cast<Char>(value);
-  }
 };
 }  // namespace internal
 }  // namespace fmt
 
 FMT_FUNC void fmt::SystemError::init(
     int err_code, CStringRef format_str, ArgList args) {
-  error_code_ = err_code;
-  MemoryWriter w;
-  internal::format_system_error(w, err_code, format(format_str, args));
-  std::runtime_error &base = *this;
-  base = std::runtime_error(w.str());
+    error_code_ = err_code;
+    MemoryWriter w;
+    internal::format_system_error(w, err_code, format(format_str, args));
+    std::runtime_error &base = *this;
+    base = std::runtime_error(w.str());
 }
 
 template <typename T>
 int fmt::internal::CharTraits<char>::format_float(
     char *buffer, std::size_t size, const char *format,
     unsigned width, int precision, T value) {
-  if (width == 0) {
+    if (width == 0) {
+        return precision < 0 ?
+               FMT_SNPRINTF(buffer, size, format, value) :
+               FMT_SNPRINTF(buffer, size, format, precision, value);
+    }
     return precision < 0 ?
-        FMT_SNPRINTF(buffer, size, format, value) :
-        FMT_SNPRINTF(buffer, size, format, precision, value);
-  }
-  return precision < 0 ?
-      FMT_SNPRINTF(buffer, size, format, width, value) :
-      FMT_SNPRINTF(buffer, size, format, width, precision, value);
+           FMT_SNPRINTF(buffer, size, format, width, value) :
+           FMT_SNPRINTF(buffer, size, format, width, precision, value);
 }
 
 template <typename T>
 int fmt::internal::CharTraits<wchar_t>::format_float(
     wchar_t *buffer, std::size_t size, const wchar_t *format,
     unsigned width, int precision, T value) {
-  if (width == 0) {
+    if (width == 0) {
+        return precision < 0 ?
+               FMT_SWPRINTF(buffer, size, format, value) :
+               FMT_SWPRINTF(buffer, size, format, precision, value);
+    }
     return precision < 0 ?
-        FMT_SWPRINTF(buffer, size, format, value) :
-        FMT_SWPRINTF(buffer, size, format, precision, value);
-  }
-  return precision < 0 ?
-      FMT_SWPRINTF(buffer, size, format, width, value) :
-      FMT_SWPRINTF(buffer, size, format, width, precision, value);
+           FMT_SWPRINTF(buffer, size, format, width, value) :
+           FMT_SWPRINTF(buffer, size, format, width, precision, value);
 }
 
 template <typename T>
@@ -585,685 +484,424 @@ const char fmt::internal::BasicData<T>::DIGITS[] =
 
 template <typename T>
 const uint32_t fmt::internal::BasicData<T>::POWERS_OF_10_32[] = {
-  0, FMT_POWERS_OF_10(1)
+    0, FMT_POWERS_OF_10(1)
 };
 
 template <typename T>
 const uint64_t fmt::internal::BasicData<T>::POWERS_OF_10_64[] = {
-  0,
-  FMT_POWERS_OF_10(1),
-  FMT_POWERS_OF_10(fmt::ULongLong(1000000000)),
-  // Multiply several constants instead of using a single long long constant
-  // to avoid warnings about C++98 not supporting long long.
-  fmt::ULongLong(1000000000) * fmt::ULongLong(1000000000) * 10
+    0,
+    FMT_POWERS_OF_10(1),
+    FMT_POWERS_OF_10(fmt::ULongLong(1000000000)),
+    // Multiply several constants instead of using a single long long constant
+    // to avoid warnings about C++98 not supporting long long.
+    fmt::ULongLong(1000000000) * fmt::ULongLong(1000000000) * 10
 };
 
 FMT_FUNC void fmt::internal::report_unknown_type(char code, const char *type) {
-  (void)type;
-  if (std::isprint(static_cast<unsigned char>(code))) {
+    (void)type;
+    if (std::isprint(static_cast<unsigned char>(code))) {
+        FMT_THROW(fmt::FormatError(
+                      fmt::format("unknown format code '{}' for {}", code, type)));
+    }
     FMT_THROW(fmt::FormatError(
-        fmt::format("unknown format code '{}' for {}", code, type)));
-  }
-  FMT_THROW(fmt::FormatError(
-      fmt::format("unknown format code '\\x{:02x}' for {}",
-        static_cast<unsigned>(code), type)));
+                  fmt::format("unknown format code '\\x{:02x}' for {}",
+                              static_cast<unsigned>(code), type)));
 }
 
 #if FMT_USE_WINDOWS_H
 
 FMT_FUNC fmt::internal::UTF8ToUTF16::UTF8ToUTF16(fmt::StringRef s) {
-  static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16";
-  if (s.size() > INT_MAX)
-    FMT_THROW(WindowsError(ERROR_INVALID_PARAMETER, ERROR_MSG));
-  int s_size = static_cast<int>(s.size());
-  int length = MultiByteToWideChar(
-      CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, 0, 0);
-  if (length == 0)
-    FMT_THROW(WindowsError(GetLastError(), ERROR_MSG));
-  buffer_.resize(length + 1);
-  length = MultiByteToWideChar(
-    CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, &buffer_[0], length);
-  if (length == 0)
-    FMT_THROW(WindowsError(GetLastError(), ERROR_MSG));
-  buffer_[length] = 0;
+    static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16";
+    if (s.size() > INT_MAX)
+        FMT_THROW(WindowsError(ERROR_INVALID_PARAMETER, ERROR_MSG));
+    int s_size = static_cast<int>(s.size());
+    int length = MultiByteToWideChar(
+                     CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, 0, 0);
+    if (length == 0)
+        FMT_THROW(WindowsError(GetLastError(), ERROR_MSG));
+    buffer_.resize(length + 1);
+    length = MultiByteToWideChar(
+                 CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, &buffer_[0], length);
+    if (length == 0)
+        FMT_THROW(WindowsError(GetLastError(), ERROR_MSG));
+    buffer_[length] = 0;
 }
 
 FMT_FUNC fmt::internal::UTF16ToUTF8::UTF16ToUTF8(fmt::WStringRef s) {
-  if (int error_code = convert(s)) {
-    FMT_THROW(WindowsError(error_code,
-        "cannot convert string from UTF-16 to UTF-8"));
-  }
+    if (int error_code = convert(s)) {
+        FMT_THROW(WindowsError(error_code,
+                               "cannot convert string from UTF-16 to UTF-8"));
+    }
 }
 
 FMT_FUNC int fmt::internal::UTF16ToUTF8::convert(fmt::WStringRef s) {
-  if (s.size() > INT_MAX)
-    return ERROR_INVALID_PARAMETER;
-  int s_size = static_cast<int>(s.size());
-  int length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, 0, 0, 0, 0);
-  if (length == 0)
-    return GetLastError();
-  buffer_.resize(length + 1);
-  length = WideCharToMultiByte(
-    CP_UTF8, 0, s.data(), s_size, &buffer_[0], length, 0, 0);
-  if (length == 0)
-    return GetLastError();
-  buffer_[length] = 0;
-  return 0;
+    if (s.size() > INT_MAX)
+        return ERROR_INVALID_PARAMETER;
+    int s_size = static_cast<int>(s.size());
+    int length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, 0, 0, 0, 0);
+    if (length == 0)
+        return GetLastError();
+    buffer_.resize(length + 1);
+    length = WideCharToMultiByte(
+                 CP_UTF8, 0, s.data(), s_size, &buffer_[0], length, 0, 0);
+    if (length == 0)
+        return GetLastError();
+    buffer_[length] = 0;
+    return 0;
 }
 
 FMT_FUNC void fmt::WindowsError::init(
     int err_code, CStringRef format_str, ArgList args) {
-  error_code_ = err_code;
-  MemoryWriter w;
-  internal::format_windows_error(w, err_code, format(format_str, args));
-  std::runtime_error &base = *this;
-  base = std::runtime_error(w.str());
+    error_code_ = err_code;
+    MemoryWriter w;
+    internal::format_windows_error(w, err_code, format(format_str, args));
+    std::runtime_error &base = *this;
+    base = std::runtime_error(w.str());
 }
 
 FMT_FUNC void fmt::internal::format_windows_error(
     fmt::Writer &out, int error_code,
-    fmt::StringRef message) FMT_NOEXCEPT {
-  class String {
-   private:
-    LPWSTR str_;
-
-   public:
-    String() : str_() {}
-    ~String() { LocalFree(str_); }
-    LPWSTR *ptr() { return &str_; }
-    LPCWSTR c_str() const { return str_; }
-  };
-  FMT_TRY {
-    String system_message;
-    if (FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+    fmt::StringRef message) FMT_NOEXCEPT{
+    class String {
+    private:
+        LPWSTR str_;
+
+    public:
+        String() : str_() {}
+        ~String() {
+            LocalFree(str_);
+        }
+        LPWSTR *ptr() {
+            return &str_;
+        }
+        LPCWSTR c_str() const { return str_; }
+    };
+    FMT_TRY{
+        String system_message;
+        if (FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
         FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0,
         error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
         reinterpret_cast<LPWSTR>(system_message.ptr()), 0, 0)) {
-      UTF16ToUTF8 utf8_message;
-      if (utf8_message.convert(system_message.c_str()) == ERROR_SUCCESS) {
-        out << message << ": " << utf8_message;
-        return;
-      }
-    }
-  } FMT_CATCH(...) {}
-  format_error_code(out, error_code, message);
+            UTF16ToUTF8 utf8_message;
+            if (utf8_message.convert(system_message.c_str()) == ERROR_SUCCESS) {
+                out << message << ": " << utf8_message;
+                return;
+            }
+        }
+    } FMT_CATCH(...) {}
+    fmt::format_error_code(out, error_code, message);  // 'fmt::' is for bcc32.
 }
 
 #endif  // FMT_USE_WINDOWS_H
 
 FMT_FUNC void fmt::internal::format_system_error(
     fmt::Writer &out, int error_code,
-    fmt::StringRef message) FMT_NOEXCEPT {
-  FMT_TRY {
-    MemoryBuffer<char, INLINE_BUFFER_SIZE> buffer;
-    buffer.resize(INLINE_BUFFER_SIZE);
-    for (;;) {
-      char *system_message = &buffer[0];
-      int result = safe_strerror(error_code, system_message, buffer.size());
-      if (result == 0) {
-        out << message << ": " << system_message;
-        return;
-      }
-      if (result != ERANGE)
-        break;  // Can't get error message, report error code instead.
-      buffer.resize(buffer.size() * 2);
-    }
-  } FMT_CATCH(...) {}
-  format_error_code(out, error_code, message);
+    fmt::StringRef message) FMT_NOEXCEPT{
+    FMT_TRY{
+        MemoryBuffer<char, INLINE_BUFFER_SIZE> buffer;
+        buffer.resize(INLINE_BUFFER_SIZE);
+        for (;;) {
+            char *system_message = &buffer[0];
+            int result = safe_strerror(error_code, system_message, buffer.size());
+            if (result == 0) {
+                out << message << ": " << system_message;
+                return;
+            }
+            if (result != ERANGE)
+                break;  // Can't get error message, report error code instead.
+            buffer.resize(buffer.size() * 2);
+        }
+    } FMT_CATCH(...) {}
+    fmt::format_error_code(out, error_code, message);  // 'fmt::' is for bcc32.
 }
 
 template <typename Char>
 void fmt::internal::ArgMap<Char>::init(const ArgList &args) {
-  if (!map_.empty())
-    return;
-  typedef internal::NamedArg<Char> NamedArg;
-  const NamedArg *named_arg = 0;
-  bool use_values =
-      args.type(ArgList::MAX_PACKED_ARGS - 1) == internal::Arg::NONE;
-  if (use_values) {
-    for (unsigned i = 0;/*nothing*/; ++i) {
-      internal::Arg::Type arg_type = args.type(i);
-      switch (arg_type) {
-      case internal::Arg::NONE:
+    if (!map_.empty())
+        return;
+    typedef internal::NamedArg<Char> NamedArg;
+    const NamedArg *named_arg = 0;
+    bool use_values =
+        args.type(ArgList::MAX_PACKED_ARGS - 1) == internal::Arg::NONE;
+    if (use_values) {
+        for (unsigned i = 0;/*nothing*/; ++i) {
+            internal::Arg::Type arg_type = args.type(i);
+            switch (arg_type) {
+            case internal::Arg::NONE:
+                return;
+            case internal::Arg::NAMED_ARG:
+                named_arg = static_cast<const NamedArg*>(args.values_[i].pointer);
+                map_.insert(Pair(named_arg->name, *named_arg));
+                break;
+            default:
+                /*nothing*/
+                ;
+            }
+        }
         return;
-      case internal::Arg::NAMED_ARG:
-        named_arg = static_cast<const NamedArg*>(args.values_[i].pointer);
-        map_.insert(Pair(named_arg->name, *named_arg));
-        break;
-      default:
-        /*nothing*/;
-      }
     }
-    return;
-  }
-  for (unsigned i = 0; i != ArgList::MAX_PACKED_ARGS; ++i) {
-    internal::Arg::Type arg_type = args.type(i);
-    if (arg_type == internal::Arg::NAMED_ARG) {
-      named_arg = static_cast<const NamedArg*>(args.args_[i].pointer);
-      map_.insert(Pair(named_arg->name, *named_arg));
+    for (unsigned i = 0; i != ArgList::MAX_PACKED_ARGS; ++i) {
+        internal::Arg::Type arg_type = args.type(i);
+        if (arg_type == internal::Arg::NAMED_ARG) {
+            named_arg = static_cast<const NamedArg*>(args.args_[i].pointer);
+            map_.insert(Pair(named_arg->name, *named_arg));
+        }
     }
-  }
-  for (unsigned i = ArgList::MAX_PACKED_ARGS;/*nothing*/; ++i) {
-    switch (args.args_[i].type) {
-    case internal::Arg::NONE:
-      return;
-    case internal::Arg::NAMED_ARG:
-      named_arg = static_cast<const NamedArg*>(args.args_[i].pointer);
-      map_.insert(Pair(named_arg->name, *named_arg));
-      break;
-    default:
-      /*nothing*/;
+    for (unsigned i = ArgList::MAX_PACKED_ARGS;/*nothing*/; ++i) {
+        switch (args.args_[i].type) {
+        case internal::Arg::NONE:
+            return;
+        case internal::Arg::NAMED_ARG:
+            named_arg = static_cast<const NamedArg*>(args.args_[i].pointer);
+            map_.insert(Pair(named_arg->name, *named_arg));
+            break;
+        default:
+            /*nothing*/
+            ;
+        }
     }
-  }
 }
 
 template <typename Char>
 void fmt::internal::FixedBuffer<Char>::grow(std::size_t) {
-  FMT_THROW(std::runtime_error("buffer overflow"));
-}
-
-template <typename Char>
-template <typename StrChar>
-void fmt::BasicWriter<Char>::write_str(
-    const Arg::StringValue<StrChar> &s, const FormatSpec &spec) {
-  // Check if StrChar is convertible to Char.
-  internal::CharTraits<Char>::convert(StrChar());
-  if (spec.type_ && spec.type_ != 's')
-    internal::report_unknown_type(spec.type_, "string");
-  const StrChar *str_value = s.value;
-  std::size_t str_size = s.size;
-  if (str_size == 0) {
-    if (!str_value)
-      FMT_THROW(FormatError("string pointer is null"));
-    if (*str_value)
-      str_size = std::char_traits<StrChar>::length(str_value);
-  }
-  std::size_t precision = spec.precision_;
-  if (spec.precision_ >= 0 && precision < str_size)
-    str_size = spec.precision_;
-  write_str(str_value, str_size, spec);
-}
-
-template <typename Char>
-inline Arg fmt::BasicFormatter<Char>::get_arg(
-  BasicStringRef<Char> arg_name, const char *&error) {
-  if (check_no_auto_index(error)) {
-    map_.init(args());
-    const Arg *arg = map_.find(arg_name);
-    if (arg)
-      return *arg;
-    error = "argument not found";
-  }
-  return Arg();
-}
-
-template <typename Char>
-inline Arg fmt::BasicFormatter<Char>::parse_arg_index(const Char *&s) {
-  const char *error = 0;
-  Arg arg = *s < '0' || *s > '9' ?
-        next_arg(error) : get_arg(parse_nonnegative_int(s), error);
-  if (error) {
-    FMT_THROW(FormatError(
-                *s != '}' && *s != ':' ? "invalid format string" : error));
-  }
-  return arg;
-}
-
-template <typename Char>
-inline Arg fmt::BasicFormatter<Char>::parse_arg_name(const Char *&s) {
-  assert(is_name_start(*s));
-  const Char *start = s;
-  Char c;
-  do {
-    c = *++s;
-  } while (is_name_start(c) || ('0' <= c && c <= '9'));
-  const char *error = 0;
-  Arg arg = get_arg(fmt::BasicStringRef<Char>(start, s - start), error);
-  if (error)
-    FMT_THROW(fmt::FormatError(error));
-  return arg;
+    FMT_THROW(std::runtime_error("buffer overflow"));
 }
 
 FMT_FUNC Arg fmt::internal::FormatterBase::do_get_arg(
     unsigned arg_index, const char *&error) {
-  Arg arg = args_[arg_index];
-  switch (arg.type) {
-  case Arg::NONE:
-    error = "argument index out of range";
-    break;
-  case Arg::NAMED_ARG:
-    arg = *static_cast<const internal::Arg*>(arg.pointer);
-  default:
-    /*nothing*/;
-  }
-  return arg;
-}
-
-inline Arg fmt::internal::FormatterBase::next_arg(const char *&error) {
-  if (next_arg_index_ >= 0)
-    return do_get_arg(next_arg_index_++, error);
-  error = "cannot switch from manual to automatic argument indexing";
-  return Arg();
-}
-
-inline bool fmt::internal::FormatterBase::check_no_auto_index(
-    const char *&error) {
-  if (next_arg_index_ > 0) {
-    error = "cannot switch from automatic to manual argument indexing";
-    return false;
-  }
-  next_arg_index_ = -1;
-  return true;
-}
-
-inline Arg fmt::internal::FormatterBase::get_arg(
-    unsigned arg_index, const char *&error) {
-  return check_no_auto_index(error) ? do_get_arg(arg_index, error) : Arg();
+    Arg arg = args_[arg_index];
+    switch (arg.type) {
+    case Arg::NONE:
+        error = "argument index out of range";
+        break;
+    case Arg::NAMED_ARG:
+        arg = *static_cast<const internal::Arg*>(arg.pointer);
+    default:
+        /*nothing*/
+        ;
+    }
+    return arg;
 }
 
 template <typename Char>
 void fmt::internal::PrintfFormatter<Char>::parse_flags(
     FormatSpec &spec, const Char *&s) {
-  for (;;) {
-    switch (*s++) {
-      case '-':
-        spec.align_ = ALIGN_LEFT;
-        break;
-      case '+':
-        spec.flags_ |= SIGN_FLAG | PLUS_FLAG;
-        break;
-      case '0':
-        spec.fill_ = '0';
-        break;
-      case ' ':
-        spec.flags_ |= SIGN_FLAG;
-        break;
-      case '#':
-        spec.flags_ |= HASH_FLAG;
-        break;
-      default:
-        --s;
-        return;
+    for (;;) {
+        switch (*s++) {
+        case '-':
+            spec.align_ = ALIGN_LEFT;
+            break;
+        case '+':
+            spec.flags_ |= SIGN_FLAG | PLUS_FLAG;
+            break;
+        case '0':
+            spec.fill_ = '0';
+            break;
+        case ' ':
+            spec.flags_ |= SIGN_FLAG;
+            break;
+        case '#':
+            spec.flags_ |= HASH_FLAG;
+            break;
+        default:
+            --s;
+            return;
+        }
     }
-  }
 }
 
 template <typename Char>
 Arg fmt::internal::PrintfFormatter<Char>::get_arg(
     const Char *s, unsigned arg_index) {
-  (void)s;
-  const char *error = 0;
-  Arg arg = arg_index == UINT_MAX ?
-    next_arg(error) : FormatterBase::get_arg(arg_index - 1, error);
-  if (error)
-    FMT_THROW(FormatError(!*s ? "invalid format string" : error));
-  return arg;
+    (void)s;
+    const char *error = 0;
+    Arg arg = arg_index == UINT_MAX ?
+              next_arg(error) : FormatterBase::get_arg(arg_index - 1, error);
+    if (error)
+        FMT_THROW(FormatError(!*s ? "invalid format string" : error));
+    return arg;
 }
 
 template <typename Char>
 unsigned fmt::internal::PrintfFormatter<Char>::parse_header(
-  const Char *&s, FormatSpec &spec) {
-  unsigned arg_index = UINT_MAX;
-  Char c = *s;
-  if (c >= '0' && c <= '9') {
-    // Parse an argument index (if followed by '$') or a width possibly
-    // preceded with '0' flag(s).
-    unsigned value = parse_nonnegative_int(s);
-    if (*s == '$') {  // value is an argument index
-      ++s;
-      arg_index = value;
-    } else {
-      if (c == '0')
-        spec.fill_ = '0';
-      if (value != 0) {
-        // Nonzero value means that we parsed width and don't need to
-        // parse it or flags again, so return now.
-        spec.width_ = value;
-        return arg_index;
-      }
+    const Char *&s, FormatSpec &spec) {
+    unsigned arg_index = UINT_MAX;
+    Char c = *s;
+    if (c >= '0' && c <= '9') {
+        // Parse an argument index (if followed by '$') or a width possibly
+        // preceded with '0' flag(s).
+        unsigned value = parse_nonnegative_int(s);
+        if (*s == '$') {  // value is an argument index
+            ++s;
+            arg_index = value;
+        }
+        else {
+            if (c == '0')
+                spec.fill_ = '0';
+            if (value != 0) {
+                // Nonzero value means that we parsed width and don't need to
+                // parse it or flags again, so return now.
+                spec.width_ = value;
+                return arg_index;
+            }
+        }
     }
-  }
-  parse_flags(spec, s);
-  // Parse width.
-  if (*s >= '0' && *s <= '9') {
-    spec.width_ = parse_nonnegative_int(s);
-  } else if (*s == '*') {
-    ++s;
-    spec.width_ = WidthHandler(spec).visit(get_arg(s));
-  }
-  return arg_index;
-}
-
-template <typename Char>
-void fmt::internal::PrintfFormatter<Char>::format(
-    BasicWriter<Char> &writer, BasicCStringRef<Char> format_str) {
-  const Char *start = format_str.c_str();
-  const Char *s = start;
-  while (*s) {
-    Char c = *s++;
-    if (c != '%') continue;
-    if (*s == c) {
-      write(writer, start, s);
-      start = ++s;
-      continue;
+    parse_flags(spec, s);
+    // Parse width.
+    if (*s >= '0' && *s <= '9') {
+        spec.width_ = parse_nonnegative_int(s);
     }
-    write(writer, start, s - 1);
-
-    FormatSpec spec;
-    spec.align_ = ALIGN_RIGHT;
-
-    // Parse argument index, flags and width.
-    unsigned arg_index = parse_header(s, spec);
-
-    // Parse precision.
-    if (*s == '.') {
-      ++s;
-      if ('0' <= *s && *s <= '9') {
-        spec.precision_ = parse_nonnegative_int(s);
-      } else if (*s == '*') {
+    else if (*s == '*') {
         ++s;
-        spec.precision_ = PrecisionHandler().visit(get_arg(s));
-      }
-    }
-
-    Arg arg = get_arg(s, arg_index);
-    if (spec.flag(HASH_FLAG) && IsZeroInt().visit(arg))
-      spec.flags_ &= ~HASH_FLAG;
-    if (spec.fill_ == '0') {
-      if (arg.type <= Arg::LAST_NUMERIC_TYPE)
-        spec.align_ = ALIGN_NUMERIC;
-      else
-        spec.fill_ = ' ';  // Ignore '0' flag for non-numeric types.
+        spec.width_ = WidthHandler(spec).visit(get_arg(s));
     }
-
-    // Parse length and convert the argument to the required type.
-    switch (*s++) {
-    case 'h':
-      if (*s == 'h')
-        ArgConverter<signed char>(arg, *++s).visit(arg);
-      else
-        ArgConverter<short>(arg, *s).visit(arg);
-      break;
-    case 'l':
-      if (*s == 'l')
-        ArgConverter<fmt::LongLong>(arg, *++s).visit(arg);
-      else
-        ArgConverter<long>(arg, *s).visit(arg);
-      break;
-    case 'j':
-      ArgConverter<intmax_t>(arg, *s).visit(arg);
-      break;
-    case 'z':
-      ArgConverter<size_t>(arg, *s).visit(arg);
-      break;
-    case 't':
-      ArgConverter<ptrdiff_t>(arg, *s).visit(arg);
-      break;
-    case 'L':
-      // printf produces garbage when 'L' is omitted for long double, no
-      // need to do the same.
-      break;
-    default:
-      --s;
-      ArgConverter<int>(arg, *s).visit(arg);
-    }
-
-    // Parse type.
-    if (!*s)
-      FMT_THROW(FormatError("invalid format string"));
-    spec.type_ = static_cast<char>(*s++);
-    if (arg.type <= Arg::LAST_INTEGER_TYPE) {
-      // Normalize type.
-      switch (spec.type_) {
-      case 'i': case 'u':
-        spec.type_ = 'd';
-        break;
-      case 'c':
-        // TODO: handle wchar_t
-        CharConverter(arg).visit(arg);
-        break;
-      }
-    }
-
-    start = s;
-
-    // Format argument.
-    internal::PrintfArgFormatter<Char>(writer, spec).visit(arg);
-  }
-  write(writer, start, s);
+    return arg_index;
 }
 
 template <typename Char>
-const Char *fmt::BasicFormatter<Char>::format(
-    const Char *&format_str, const Arg &arg) {
-  const Char *s = format_str;
-  FormatSpec spec;
-  if (*s == ':') {
-    if (arg.type == Arg::CUSTOM) {
-      arg.custom.format(this, arg.custom.value, &s);
-      return s;
-    }
-    ++s;
-    // Parse fill and alignment.
-    if (Char c = *s) {
-      const Char *p = s + 1;
-      spec.align_ = ALIGN_DEFAULT;
-      do {
-        switch (*p) {
-          case '<':
-            spec.align_ = ALIGN_LEFT;
-            break;
-          case '>':
-            spec.align_ = ALIGN_RIGHT;
-            break;
-          case '=':
-            spec.align_ = ALIGN_NUMERIC;
-            break;
-          case '^':
-            spec.align_ = ALIGN_CENTER;
-            break;
+void fmt::internal::PrintfFormatter<Char>::format(
+    BasicWriter<Char> &writer, BasicCStringRef<Char> format_str) {
+    const Char *start = format_str.c_str();
+    const Char *s = start;
+    while (*s) {
+        Char c = *s++;
+        if (c != '%') continue;
+        if (*s == c) {
+            write(writer, start, s);
+            start = ++s;
+            continue;
         }
-        if (spec.align_ != ALIGN_DEFAULT) {
-          if (p != s) {
-            if (c == '}') break;
-            if (c == '{')
-              FMT_THROW(FormatError("invalid fill character '{'"));
-            s += 2;
-            spec.fill_ = c;
-          } else ++s;
-          if (spec.align_ == ALIGN_NUMERIC)
-            require_numeric_argument(arg, '=');
-          break;
+        write(writer, start, s - 1);
+
+        FormatSpec spec;
+        spec.align_ = ALIGN_RIGHT;
+
+        // Parse argument index, flags and width.
+        unsigned arg_index = parse_header(s, spec);
+
+        // Parse precision.
+        if (*s == '.') {
+            ++s;
+            if ('0' <= *s && *s <= '9') {
+                spec.precision_ = parse_nonnegative_int(s);
+            }
+            else if (*s == '*') {
+                ++s;
+                spec.precision_ = PrecisionHandler().visit(get_arg(s));
+            }
         }
-      } while (--p >= s);
-    }
 
-    // Parse sign.
-    switch (*s) {
-      case '+':
-        check_sign(s, arg);
-        spec.flags_ |= SIGN_FLAG | PLUS_FLAG;
-        break;
-      case '-':
-        check_sign(s, arg);
-        spec.flags_ |= MINUS_FLAG;
-        break;
-      case ' ':
-        check_sign(s, arg);
-        spec.flags_ |= SIGN_FLAG;
-        break;
-    }
-
-    if (*s == '#') {
-      require_numeric_argument(arg, '#');
-      spec.flags_ |= HASH_FLAG;
-      ++s;
-    }
-
-    // Parse zero flag.
-    if (*s == '0') {
-      require_numeric_argument(arg, '0');
-      spec.align_ = ALIGN_NUMERIC;
-      spec.fill_ = '0';
-      ++s;
-    }
-    
-    // Parse width.
-    if ('0' <= *s && *s <= '9') {
-      spec.width_ = parse_nonnegative_int(s);
-    } else if (*s == '{') {
-      ++s;
-      Arg width_arg = is_name_start(*s) ?
-            parse_arg_name(s) : parse_arg_index(s);
-      if (*s++ != '}')
-        FMT_THROW(FormatError("invalid format string"));
-      ULongLong value = 0;
-      switch (width_arg.type) {
-      case Arg::INT:
-        if (width_arg.int_value < 0)
-          FMT_THROW(FormatError("negative width"));
-        value = width_arg.int_value;
-        break;
-      case Arg::UINT:
-        value = width_arg.uint_value;
-        break;
-      case Arg::LONG_LONG:
-        if (width_arg.long_long_value < 0)
-          FMT_THROW(FormatError("negative width"));
-        value = width_arg.long_long_value;
-        break;
-      case Arg::ULONG_LONG:
-        value = width_arg.ulong_long_value;
-        break;
-      default:
-        FMT_THROW(FormatError("width is not integer"));
-      }
-      if (value > INT_MAX)
-        FMT_THROW(FormatError("number is too big"));
-      spec.width_ = static_cast<int>(value);
-    }
+        Arg arg = get_arg(s, arg_index);
+        if (spec.flag(HASH_FLAG) && IsZeroInt().visit(arg))
+            spec.flags_ &= ~HASH_FLAG;
+        if (spec.fill_ == '0') {
+            if (arg.type <= Arg::LAST_NUMERIC_TYPE)
+                spec.align_ = ALIGN_NUMERIC;
+            else
+                spec.fill_ = ' ';  // Ignore '0' flag for non-numeric types.
+        }
 
-    // Parse precision.
-    if (*s == '.') {
-      ++s;
-      spec.precision_ = 0;
-      if ('0' <= *s && *s <= '9') {
-        spec.precision_ = parse_nonnegative_int(s);
-      } else if (*s == '{') {
-        ++s;
-        Arg precision_arg =
-            is_name_start(*s) ? parse_arg_name(s) : parse_arg_index(s);
-        if (*s++ != '}')
-          FMT_THROW(FormatError("invalid format string"));
-        ULongLong value = 0;
-        switch (precision_arg.type) {
-          case Arg::INT:
-            if (precision_arg.int_value < 0)
-              FMT_THROW(FormatError("negative precision"));
-            value = precision_arg.int_value;
+        // Parse length and convert the argument to the required type.
+        switch (*s++) {
+        case 'h':
+            if (*s == 'h')
+                ArgConverter<signed char>(arg, *++s).visit(arg);
+            else
+                ArgConverter<short>(arg, *s).visit(arg);
+            break;
+        case 'l':
+            if (*s == 'l')
+                ArgConverter<fmt::LongLong>(arg, *++s).visit(arg);
+            else
+                ArgConverter<long>(arg, *s).visit(arg);
+            break;
+        case 'j':
+            ArgConverter<intmax_t>(arg, *s).visit(arg);
             break;
-          case Arg::UINT:
-            value = precision_arg.uint_value;
+        case 'z':
+            ArgConverter<std::size_t>(arg, *s).visit(arg);
             break;
-          case Arg::LONG_LONG:
-            if (precision_arg.long_long_value < 0)
-              FMT_THROW(FormatError("negative precision"));
-            value = precision_arg.long_long_value;
+        case 't':
+            ArgConverter<std::ptrdiff_t>(arg, *s).visit(arg);
             break;
-          case Arg::ULONG_LONG:
-            value = precision_arg.ulong_long_value;
+        case 'L':
+            // printf produces garbage when 'L' is omitted for long double, no
+            // need to do the same.
             break;
-          default:
-            FMT_THROW(FormatError("precision is not integer"));
+        default:
+            --s;
+            ArgConverter<int>(arg, *s).visit(arg);
         }
-        if (value > INT_MAX)
-          FMT_THROW(FormatError("number is too big"));
-        spec.precision_ = static_cast<int>(value);
-      } else {
-        FMT_THROW(FormatError("missing precision specifier"));
-      }
-      if (arg.type <= Arg::LAST_INTEGER_TYPE || arg.type == Arg::POINTER) {
-        FMT_THROW(FormatError(
-            fmt::format("precision not allowed in {} format specifier",
-            arg.type == Arg::POINTER ? "pointer" : "integer")));
-      }
-    }
-
-    // Parse type.
-    if (*s != '}' && *s)
-      spec.type_ = static_cast<char>(*s++);
-  }
 
-  if (*s++ != '}')
-    FMT_THROW(FormatError("missing '}' in format string"));
+        // Parse type.
+        if (!*s)
+            FMT_THROW(FormatError("invalid format string"));
+        spec.type_ = static_cast<char>(*s++);
+        if (arg.type <= Arg::LAST_INTEGER_TYPE) {
+            // Normalize type.
+            switch (spec.type_) {
+            case 'i':
+            case 'u':
+                spec.type_ = 'd';
+                break;
+            case 'c':
+                // TODO: handle wchar_t
+                CharConverter(arg).visit(arg);
+                break;
+            }
+        }
 
-  // Format argument.
-  internal::ArgFormatter<Char>(*this, spec, s - 1).visit(arg);
-  return s;
-}
+        start = s;
 
-template <typename Char>
-void fmt::BasicFormatter<Char>::format(BasicCStringRef<Char> format_str) {
-  const Char *s = format_str.c_str();
-  const Char *start = s;
-  while (*s) {
-    Char c = *s++;
-    if (c != '{' && c != '}') continue;
-    if (*s == c) {
-      write(writer_, start, s);
-      start = ++s;
-      continue;
+        // Format argument.
+        internal::PrintfArgFormatter<Char>(writer, spec).visit(arg);
     }
-    if (c == '}')
-      FMT_THROW(FormatError("unmatched '}' in format string"));
-    write(writer_, start, s - 1);
-    Arg arg = is_name_start(*s) ? parse_arg_name(s) : parse_arg_index(s);
-    start = s = format(s, arg);
-  }
-  write(writer_, start, s);
+    write(writer, start, s);
 }
 
 FMT_FUNC void fmt::report_system_error(
-    int error_code, fmt::StringRef message) FMT_NOEXCEPT {
-  report_error(internal::format_system_error, error_code, message);
+    int error_code, fmt::StringRef message) FMT_NOEXCEPT{
+    // 'fmt::' is for bcc32.
+    fmt::report_error(internal::format_system_error, error_code, message);
 }
 
 #if FMT_USE_WINDOWS_H
 FMT_FUNC void fmt::report_windows_error(
-    int error_code, fmt::StringRef message) FMT_NOEXCEPT {
-  report_error(internal::format_windows_error, error_code, message);
+    int error_code, fmt::StringRef message) FMT_NOEXCEPT{
+    // 'fmt::' is for bcc32.
+    fmt::report_error(internal::format_windows_error, error_code, message);
 }
 #endif
 
 FMT_FUNC void fmt::print(std::FILE *f, CStringRef format_str, ArgList args) {
-  MemoryWriter w;
-  w.write(format_str, args);
-  std::fwrite(w.data(), 1, w.size(), f);
+    MemoryWriter w;
+    w.write(format_str, args);
+    std::fwrite(w.data(), 1, w.size(), f);
 }
 
 FMT_FUNC void fmt::print(CStringRef format_str, ArgList args) {
-  print(stdout, format_str, args);
+    print(stdout, format_str, args);
 }
 
 FMT_FUNC void fmt::print(std::ostream &os, CStringRef format_str, ArgList args) {
-  MemoryWriter w;
-  w.write(format_str, args);
-  os.write(w.data(), w.size());
+    MemoryWriter w;
+    w.write(format_str, args);
+    os.write(w.data(), w.size());
 }
 
 FMT_FUNC void fmt::print_colored(Color c, CStringRef format, ArgList args) {
-  char escape[] = "\x1b[30m";
-  escape[3] = '0' + static_cast<char>(c);
-  std::fputs(escape, stdout);
-  print(format, args);
-  std::fputs(RESET_COLOR, stdout);
+    char escape[] = "\x1b[30m";
+    escape[3] = static_cast<char>('0' + c);
+    std::fputs(escape, stdout);
+    print(format, args);
+    std::fputs(RESET_COLOR, stdout);
 }
 
 FMT_FUNC int fmt::fprintf(std::FILE *f, CStringRef format, ArgList args) {
-  MemoryWriter w;
-  printf(w, format, args);
-  std::size_t size = w.size();
-  return std::fwrite(w.data(), 1, size, f) < size ? -1 : static_cast<int>(size);
+    MemoryWriter w;
+    printf(w, format, args);
+    std::size_t size = w.size();
+    return std::fwrite(w.data(), 1, size, f) < size ? -1 : static_cast<int>(size);
 }
 
 #ifndef FMT_HEADER_ONLY
@@ -1274,13 +912,10 @@ template struct fmt::internal::BasicData<void>;
 
 template void fmt::internal::FixedBuffer<char>::grow(std::size_t);
 
-template const char *fmt::BasicFormatter<char>::format(
-    const char *&format_str, const fmt::internal::Arg &arg);
-
-template void fmt::BasicFormatter<char>::format(CStringRef format);
+template void fmt::internal::ArgMap<char>::init(const fmt::ArgList &args);
 
 template void fmt::internal::PrintfFormatter<char>::format(
-  BasicWriter<char> &writer, CStringRef format);
+    BasicWriter<char> &writer, CStringRef format);
 
 template int fmt::internal::CharTraits<char>::format_float(
     char *buffer, std::size_t size, const char *format,
@@ -1294,11 +929,7 @@ template int fmt::internal::CharTraits<char>::format_float(
 
 template void fmt::internal::FixedBuffer<wchar_t>::grow(std::size_t);
 
-template const wchar_t *fmt::BasicFormatter<wchar_t>::format(
-    const wchar_t *&format_str, const fmt::internal::Arg &arg);
-
-template void fmt::BasicFormatter<wchar_t>::format(
-    BasicCStringRef<wchar_t> format);
+template void fmt::internal::ArgMap<wchar_t>::init(const fmt::ArgList &args);
 
 template void fmt::internal::PrintfFormatter<wchar_t>::format(
     BasicWriter<wchar_t> &writer, WCStringRef format);
@@ -1313,6 +944,6 @@ template int fmt::internal::CharTraits<wchar_t>::format_float(
 
 #endif  // FMT_HEADER_ONLY
 
-#if _MSC_VER
+#ifdef _MSC_VER
 # pragma warning(pop)
 #endif
\ No newline at end of file
diff --git a/include/spdlog/details/format.h b/include/spdlog/details/format.h
index 8e55b29..2e98d67 100644
--- a/include/spdlog/details/format.h
+++ b/include/spdlog/details/format.h
@@ -1,61 +1,101 @@
 /*
- Formatting library for C++
-
- Copyright (c) 2012 - 2015, Victor Zverovich
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- 1. Redistributions of source code must retain the above copyright notice, this
-    list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright notice,
-    this list of conditions and the following disclaimer in the documentation
-    and/or other materials provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
- ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
+Formatting library for C++
+
+Copyright (c) 2012 - 2015, Victor Zverovich
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
 
 #ifndef FMT_FORMAT_H_
 #define FMT_FORMAT_H_
+
+//Added to spdlog version for header only usage
 #define FMT_HEADER_ONLY
 
+//Added to spdlog version in order to avoid including windows.h
+#if !defined (FMT_USE_WINDOWS_H)
+#define FMT_USE_WINDOWS_H 0
+#endif
+
+#if defined _MSC_VER && _MSC_VER <= 1500
+typedef unsigned int       uint32_t;
+typedef unsigned long long uint64_t;
+typedef long long          intmax_t;
+#else
 #include <stdint.h>
+#endif
 
 #include <cassert>
 #include <cmath>
-#include <cstddef>  // for std::ptrdiff_t
 #include <cstdio>
-#include <algorithm>
+#include <cstring>
 #include <limits>
+#include <memory>
 #include <stdexcept>
 #include <string>
-#include <sstream>
 #include <map>
 
-#if _SECURE_SCL
+#ifndef FMT_USE_IOSTREAMS
+# define FMT_USE_IOSTREAMS 1
+#endif
+
+#if FMT_USE_IOSTREAMS
+# include <ostream>
+#endif
+
+#ifdef _SECURE_SCL
+# define FMT_SECURE_SCL _SECURE_SCL
+#else
+# define FMT_SECURE_SCL 0
+#endif
+
+#if FMT_SECURE_SCL
 # include <iterator>
 #endif
 
+#if !defined(FMT_HEADER_ONLY) && defined(_WIN32)
+# ifdef FMT_EXPORT
+#  define FMT_API __declspec(dllexport)
+# elif defined(FMT_SHARED)
+#  define FMT_API __declspec(dllimport)
+# endif
+#endif
+#ifndef FMT_API
+# define FMT_API
+#endif
+
 #ifdef _MSC_VER
 # include <intrin.h>  // _BitScanReverse, _BitScanReverse64
 
-namespace fmt {
-namespace internal {
+namespace fmt
+{
+namespace internal
+{
 # pragma intrinsic(_BitScanReverse)
-inline uint32_t clz(uint32_t x) {
-  unsigned long r = 0;
-  _BitScanReverse(&r, x);
-  return 31 - r;
+inline uint32_t clz(uint32_t x)
+{
+    unsigned long r = 0;
+    _BitScanReverse(&r, x);
+    return 31 - r;
 }
 # define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n)
 
@@ -63,19 +103,20 @@ inline uint32_t clz(uint32_t x) {
 #  pragma intrinsic(_BitScanReverse64)
 # endif
 
-inline uint32_t clzll(uint64_t x) {
-  unsigned long r = 0;
+inline uint32_t clzll(uint64_t x)
+{
+    unsigned long r = 0;
 # ifdef _WIN64
-  _BitScanReverse64(&r, x);
+    _BitScanReverse64(&r, x);
 # else
-  // Scan the high 32 bits.
-  if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32)))
-    return 63 - (r + 32);
+    // Scan the high 32 bits.
+    if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32)))
+        return 63 - (r + 32);
 
-  // Scan the low 32 bits.
-  _BitScanReverse(&r, static_cast<uint32_t>(x));
+    // Scan the low 32 bits.
+    _BitScanReverse(&r, static_cast<uint32_t>(x));
 # endif
-  return 63 - r;
+    return 63 - r;
 }
 # define FMT_BUILTIN_CLZLL(n) fmt::internal::clzll(n)
 }
@@ -93,6 +134,9 @@ inline uint32_t clzll(uint64_t x) {
 // Disable the warning about declaration shadowing because it affects too
 // many valid cases.
 #  pragma GCC diagnostic ignored "-Wshadow"
+// Disable the warning about implicit conversions that may change the sign of
+// an integer; silencing it otherwise would require many explicit casts.
+#  pragma GCC diagnostic ignored "-Wsign-conversion"
 # endif
 # if __cplusplus >= 201103L || defined __GXX_EXPERIMENTAL_CXX0X__
 #  define FMT_HAS_GXX_CXX11 1
@@ -101,7 +145,7 @@ inline uint32_t clzll(uint64_t x) {
 # define FMT_GCC_EXTENSION
 #endif
 
-#ifdef __clang__
+#if defined(__clang__) && !defined(__INTEL_COMPILER)
 # pragma clang diagnostic push
 # pragma clang diagnostic ignored "-Wdocumentation"
 #endif
@@ -154,17 +198,45 @@ inline uint32_t clzll(uint64_t x) {
 #endif
 
 // Define FMT_USE_NOEXCEPT to make C++ Format use noexcept (C++11 feature).
+#ifndef FMT_USE_NOEXCEPT
+# define FMT_USE_NOEXCEPT 0
+#endif
+
 #ifndef FMT_NOEXCEPT
 # if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || \
-   (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11)
+   (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || \
+   _MSC_VER >= 1900
 #  define FMT_NOEXCEPT noexcept
 # else
 #  define FMT_NOEXCEPT throw()
 # endif
 #endif
 
+// Check if exceptions are disabled.
+#if defined(__GNUC__) && !defined(__EXCEPTIONS)
+# define FMT_EXCEPTIONS 0
+#endif
+#if defined(_MSC_VER) && !_HAS_EXCEPTIONS
+# define FMT_EXCEPTIONS 0
+#endif
+#ifndef FMT_EXCEPTIONS
+# define FMT_EXCEPTIONS 1
+#endif
+
+#ifndef FMT_THROW
+# if FMT_EXCEPTIONS
+#  define FMT_THROW(x) throw x
+# else
+#  define FMT_THROW(x) assert(false)
+# endif
+#endif
+
 // A macro to disallow the copy constructor and operator= functions
 // This should be used in the private: declarations for a class
+#ifndef FMT_USE_DELETED_FUNCTIONS
+# define FMT_USE_DELETED_FUNCTIONS 0
+#endif
+
 #if FMT_USE_DELETED_FUNCTIONS || FMT_HAS_FEATURE(cxx_deleted_functions) || \
   (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1800
 # define FMT_DELETED_OR_UNDEFINED  = delete
@@ -178,11 +250,128 @@ inline uint32_t clzll(uint64_t x) {
     TypeName& operator=(const TypeName&)
 #endif
 
+#ifndef FMT_USE_USER_DEFINED_LITERALS
+// All compilers which support UDLs also support variadic templates. This
+// makes the fmt::literals implementation easier. However, an explicit check
+// for variadic templates is added here just in case.
+# define FMT_USE_USER_DEFINED_LITERALS \
+   FMT_USE_VARIADIC_TEMPLATES && FMT_USE_RVALUE_REFERENCES && \
+   (FMT_HAS_FEATURE(cxx_user_literals) || \
+       (FMT_GCC_VERSION >= 407 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1900)
+#endif
+
 #ifndef FMT_ASSERT
 # define FMT_ASSERT(condition, message) assert((condition) && message)
 #endif
 
-namespace fmt {
+namespace fmt
+{
+namespace internal
+{
+struct DummyInt
+{
+    int data[2];
+    operator int() const
+    {
+        return 0;
+    }
+};
+typedef std::numeric_limits<fmt::internal::DummyInt> FPUtil;
+
+// Dummy implementations of system functions such as signbit and ecvt called
+// if the latter are not available.
+inline DummyInt signbit(...)
+{
+    return DummyInt();
+}
+inline DummyInt _ecvt_s(...)
+{
+    return DummyInt();
+}
+inline DummyInt isinf(...)
+{
+    return DummyInt();
+}
+inline DummyInt _finite(...)
+{
+    return DummyInt();
+}
+inline DummyInt isnan(...)
+{
+    return DummyInt();
+}
+inline DummyInt _isnan(...)
+{
+    return DummyInt();
+}
+
+// A helper function to suppress bogus "conditional expression is constant"
+// warnings.
+template <typename T>
+inline T check(T value)
+{
+    return value;
+}
+}
+}  // namespace fmt
+
+namespace std
+{
+// Standard permits specialization of std::numeric_limits. This specialization
+// is used to resolve ambiguity between isinf and std::isinf in glibc:
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48891
+// and the same for isnan and signbit.
+template <>
+class numeric_limits<fmt::internal::DummyInt> :
+    public std::numeric_limits<int>
+{
+public:
+    // Portable version of isinf.
+    template <typename T>
+    static bool isinfinity(T x)
+    {
+        using namespace fmt::internal;
+        // The resolution "priority" is:
+        // isinf macro > std::isinf > ::isinf > fmt::internal::isinf
+        if (check(sizeof(isinf(x)) == sizeof(bool) ||
+                  sizeof(isinf(x)) == sizeof(int)))
+        {
+            return isinf(x) != 0;
+        }
+        return !_finite(static_cast<double>(x));
+    }
+
+    // Portable version of isnan.
+    template <typename T>
+    static bool isnotanumber(T x)
+    {
+        using namespace fmt::internal;
+        if (check(sizeof(isnan(x)) == sizeof(bool) ||
+                  sizeof(isnan(x)) == sizeof(int)))
+        {
+            return isnan(x) != 0;
+        }
+        return _isnan(static_cast<double>(x)) != 0;
+    }
+
+    // Portable version of signbit.
+    static bool isnegative(double x)
+    {
+        using namespace fmt::internal;
+        if (check(sizeof(signbit(x)) == sizeof(int)))
+            return signbit(x) != 0;
+        if (x < 0) return true;
+        if (!isnotanumber(x)) return false;
+        int dec = 0, sign = 0;
+        char buffer[2];  // The buffer size must be >= 2 or _ecvt_s will fail.
+        _ecvt_s(buffer, sizeof(buffer), x, 0, &dec, &sign);
+        return sign != 0;
+    }
+};
+}  // namespace std
+
+namespace fmt
+{
 
 // Fix the warning about long long on older versions of GCC
 // that don't support the diagnostic pragma.
@@ -206,442 +395,519 @@ template <typename Char, typename T>
 void format(BasicFormatter<Char> &f, const Char *&format_str, const T &value);
 
 /**
-  \rst
-  A string reference. It can be constructed from a C string or ``std::string``.
-  
-  You can use one of the following typedefs for common character types:
-
-  +------------+-------------------------+
-  | Type       | Definition              |
-  +============+=========================+
-  | StringRef  | BasicStringRef<char>    |
-  +------------+-------------------------+
-  | WStringRef | BasicStringRef<wchar_t> |
-  +------------+-------------------------+
-
-  This class is most useful as a parameter type to allow passing
-  different types of strings to a function, for example::
+\rst
+A string reference. It can be constructed from a C string or ``std::string``.
 
-    template <typename... Args>
-    std::string format(StringRef format_str, const Args & ... args);
+You can use one of the following typedefs for common character types:
+
++------------+-------------------------+
+| Type       | Definition              |
++============+=========================+
+| StringRef  | BasicStringRef<char>    |
++------------+-------------------------+
+| WStringRef | BasicStringRef<wchar_t> |
++------------+-------------------------+
+
+This class is most useful as a parameter type to allow passing
+different types of strings to a function, for example::
+
+template <typename... Args>
+std::string format(StringRef format_str, const Args & ... args);
 
-    format("{}", 42);
-    format(std::string("{}"), 42);
-  \endrst
- */
+format("{}", 42);
+format(std::string("{}"), 42);
+\endrst
+*/
 template <typename Char>
-class BasicStringRef {
- private:
-  const Char *data_;
-  std::size_t size_;
+class BasicStringRef
+{
+private:
+    const Char *data_;
+    std::size_t size_;
 
- public:
-  /** Constructs a string reference object from a C string and a size. */
-  BasicStringRef(const Char *s, std::size_t size) : data_(s), size_(size) {}
+public:
+    /** Constructs a string reference object from a C string and a size. */
+    BasicStringRef(const Char *s, std::size_t size) : data_(s), size_(size) {}
 
-  /**
+    /**
     \rst
     Constructs a string reference object from a C string computing
     the size with ``std::char_traits<Char>::length``.
     \endrst
-   */
-  BasicStringRef(const Char *s)
-    : data_(s), size_(std::char_traits<Char>::length(s)) {}
+    */
+    BasicStringRef(const Char *s)
+        : data_(s), size_(std::char_traits<Char>::length(s)) {}
 
-  /**
+    /**
     \rst
     Constructs a string reference from an ``std::string`` object.
     \endrst
-   */
-  BasicStringRef(const std::basic_string<Char> &s)
-  : data_(s.c_str()), size_(s.size()) {}
+    */
+    BasicStringRef(const std::basic_string<Char> &s)
+        : data_(s.c_str()), size_(s.size()) {}
 
-  /**
+    /**
     \rst
     Converts a string reference to an ``std::string`` object.
     \endrst
-   */
-  std::basic_string<Char> to_string() const {
-    return std::basic_string<Char>(data_, size_);
-  }
+    */
+    std::basic_string<Char> to_string() const
+    {
+        return std::basic_string<Char>(data_, size_);
+    }
 
-  /** Returns the pointer to a C string. */
-  const Char *data() const { return data_; }
+    /** Returns the pointer to a C string. */
+    const Char *data() const
+    {
+        return data_;
+    }
 
-  /** Returns the string size. */
-  std::size_t size() const { return size_; }
+    /** Returns the string size. */
+    std::size_t size() const
+    {
+        return size_;
+    }
 
-  friend bool operator==(BasicStringRef lhs, BasicStringRef rhs) {
-    return lhs.data_ == rhs.data_;
-  }
-  friend bool operator!=(BasicStringRef lhs, BasicStringRef rhs) {
-    return lhs.data_ != rhs.data_;
-  }
-  friend bool operator<(BasicStringRef lhs, BasicStringRef rhs) {
-    return std::lexicographical_compare(
-          lhs.data_, lhs.data_ + lhs.size_, rhs.data_, rhs.data_ + rhs.size_);
-  }
+    // Lexicographically compare this string reference to other.
+    int compare(BasicStringRef other) const
+    {
+        std::size_t size = size_ < other.size_ ? size_ : other.size_;
+        int result = std::char_traits<Char>::compare(data_, other.data_, size);
+        if (result == 0)
+            result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1);
+        return result;
+    }
+
+    friend bool operator==(BasicStringRef lhs, BasicStringRef rhs)
+    {
+        return lhs.compare(rhs) == 0;
+    }
+    friend bool operator!=(BasicStringRef lhs, BasicStringRef rhs)
+    {
+        return lhs.compare(rhs) != 0;
+    }
+    friend bool operator<(BasicStringRef lhs, BasicStringRef rhs)
+    {
+        return lhs.compare(rhs) < 0;
+    }
+    friend bool operator<=(BasicStringRef lhs, BasicStringRef rhs)
+    {
+        return lhs.compare(rhs) <= 0;
+    }
+    friend bool operator>(BasicStringRef lhs, BasicStringRef rhs)
+    {
+        return lhs.compare(rhs) > 0;
+    }
+    friend bool operator>=(BasicStringRef lhs, BasicStringRef rhs)
+    {
+        return lhs.compare(rhs) >= 0;
+    }
 };
 
 typedef BasicStringRef<char> StringRef;
 typedef BasicStringRef<wchar_t> WStringRef;
 
-
 /**
-  \rst
-  A reference to a null terminated string. It can be constructed from a C
-  string or ``std::string``.
+\rst
+A reference to a null terminated string. It can be constructed from a C
+string or ``std::string``.
 
-  You can use one of the following typedefs for common character types:
+You can use one of the following typedefs for common character types:
 
-  +-------------+--------------------------+
-  | Type        | Definition               |
-  +=============+==========================+
-  | CStringRef  | BasicCStringRef<char>    |
-  +-------------+--------------------------+
-  | WCStringRef | BasicCStringRef<wchar_t> |
-  +-------------+--------------------------+
++-------------+--------------------------+
+| Type        | Definition               |
++=============+==========================+
+| CStringRef  | BasicCStringRef<char>    |
++-------------+--------------------------+
+| WCStringRef | BasicCStringRef<wchar_t> |
++-------------+--------------------------+
 
-  This class is most useful as a parameter type to allow passing
-  different types of strings to a function, for example::
+This class is most useful as a parameter type to allow passing
+different types of strings to a function, for example::
 
-    template <typename... Args>
-    std::string format(CStringRef format_str, const Args & ... args);
+template <typename... Args>
+std::string format(CStringRef format_str, const Args & ... args);
 
-    format("{}", 42);
-    format(std::string("{}"), 42);
-  \endrst
- */
+format("{}", 42);
+format(std::string("{}"), 42);
+\endrst
+*/
 template <typename Char>
-class BasicCStringRef {
- private:
-  const Char *data_;
+class BasicCStringRef
+{
+private:
+    const Char *data_;
 
- public:
-  /** Constructs a string reference object from a C string. */
-  BasicCStringRef(const Char *s) : data_(s) {}
+public:
+    /** Constructs a string reference object from a C string. */
+    BasicCStringRef(const Char *s) : data_(s) {}
 
-  /**
+    /**
     \rst
     Constructs a string reference from an ``std::string`` object.
     \endrst
-   */
-  BasicCStringRef(const std::basic_string<Char> &s) : data_(s.c_str()) {}
+    */
+    BasicCStringRef(const std::basic_string<Char> &s) : data_(s.c_str()) {}
 
-  /** Returns the pointer to a C string. */
-  const Char *c_str() const { return data_; }
+    /** Returns the pointer to a C string. */
+    const Char *c_str() const
+    {
+        return data_;
+    }
 };
 
 typedef BasicCStringRef<char> CStringRef;
 typedef BasicCStringRef<wchar_t> WCStringRef;
 
 /**
-  A formatting error such as invalid format string.
+A formatting error such as invalid format string.
 */
-class FormatError : public std::runtime_error {
- public:
-  explicit FormatError(CStringRef message)
-  : std::runtime_error(message.c_str()) {}
+class FormatError : public std::runtime_error
+{
+public:
+    explicit FormatError(CStringRef message)
+        : std::runtime_error(message.c_str()) {}
 };
 
-namespace internal {
+namespace internal
+{
 // The number of characters to store in the MemoryBuffer object itself
 // to avoid dynamic memory allocation.
 enum { INLINE_BUFFER_SIZE = 500 };
 
-#if _SECURE_SCL
+#if FMT_SECURE_SCL
 // Use checked iterator to avoid warnings on MSVC.
 template <typename T>
-inline stdext::checked_array_iterator<T*> make_ptr(T *ptr, std::size_t size) {
-  return stdext::checked_array_iterator<T*>(ptr, size);
+inline stdext::checked_array_iterator<T*> make_ptr(T *ptr, std::size_t size)
+{
+    return stdext::checked_array_iterator<T*>(ptr, size);
 }
 #else
 template <typename T>
-inline T *make_ptr(T *ptr, std::size_t) { return ptr; }
+inline T *make_ptr(T *ptr, std::size_t)
+{
+    return ptr;
+}
 #endif
 }  // namespace internal
 
 /**
-  \rst
-  A buffer supporting a subset of ``std::vector``'s operations.
-  \endrst
- */
+\rst
+A buffer supporting a subset of ``std::vector``'s operations.
+\endrst
+*/
 template <typename T>
-class Buffer {
- private:
-  FMT_DISALLOW_COPY_AND_ASSIGN(Buffer);
+class Buffer
+{
+private:
+    FMT_DISALLOW_COPY_AND_ASSIGN(Buffer);
 
- protected:
-  T *ptr_;
-  std::size_t size_;
-  std::size_t capacity_;
+protected:
+    T *ptr_;
+    std::size_t size_;
+    std::size_t capacity_;
 
-  Buffer(T *ptr = 0, std::size_t capacity = 0)
-    : ptr_(ptr), size_(0), capacity_(capacity) {}
+    Buffer(T *ptr = 0, std::size_t capacity = 0)
+        : ptr_(ptr), size_(0), capacity_(capacity) {}
 
-  /**
+    /**
     \rst
     Increases the buffer capacity to hold at least *size* elements updating
     ``ptr_`` and ``capacity_``.
     \endrst
-   */
-  virtual void grow(std::size_t size) = 0;
+    */
+    virtual void grow(std::size_t size) = 0;
 
- public:
-  virtual ~Buffer() {}
+public:
+    virtual ~Buffer() {}
 
-  /** Returns the size of this buffer. */
-  std::size_t size() const { return size_; }
+    /** Returns the size of this buffer. */
+    std::size_t size() const
+    {
+        return size_;
+    }
 
-  /** Returns the capacity of this buffer. */
-  std::size_t capacity() const { return capacity_; }
+    /** Returns the capacity of this buffer. */
+    std::size_t capacity() const
+    {
+        return capacity_;
+    }
 
-  /**
+    /**
     Resizes the buffer. If T is a POD type new elements may not be initialized.
-   */
-  void resize(std::size_t new_size) {
-    if (new_size > capacity_)
-      grow(new_size);
-    size_ = new_size;
-  }
+    */
+    void resize(std::size_t new_size)
+    {
+        if (new_size > capacity_)
+            grow(new_size);
+        size_ = new_size;
+    }
 
-  /**
+    /**
     \rst
     Reserves space to store at least *capacity* elements.
     \endrst
-   */
-  void reserve(std::size_t capacity) {
-    if (capacity > capacity_)
-      grow(capacity);
-  }
+    */
+    void reserve(std::size_t capacity)
+    {
+        if (capacity > capacity_)
+            grow(capacity);
+    }
 
-  void clear() FMT_NOEXCEPT { size_ = 0; }
+    void clear() FMT_NOEXCEPT { size_ = 0; }
 
-  void push_back(const T &value) {
-    if (size_ == capacity_)
-      grow(size_ + 1);
-    ptr_[size_++] = value;
-  }
+    void push_back(const T &value)
+    {
+        if (size_ == capacity_)
+            grow(size_ + 1);
+        ptr_[size_++] = value;
+    }
 
-  /** Appends data to the end of the buffer. */
-  template <typename U>
-  void append(const U *begin, const U *end);
+    /** Appends data to the end of the buffer. */
+    template <typename U>
+    void append(const U *begin, const U *end);
 
-  T &operator[](std::size_t index) { return ptr_[index]; }
-  const T &operator[](std::size_t index) const { return ptr_[index]; }
+    T &operator[](std::size_t index)
+    {
+        return ptr_[index];
+    }
+    const T &operator[](std::size_t index) const
+    {
+        return ptr_[index];
+    }
 };
 
 template <typename T>
 template <typename U>
-void Buffer<T>::append(const U *begin, const U *end) {
-  std::ptrdiff_t num_elements = end - begin;
-  if (size_ + num_elements > capacity_)
-    grow(size_ + num_elements);
-  std::copy(begin, end, internal::make_ptr(ptr_, capacity_) + size_);
-  size_ += num_elements;
+void Buffer<T>::append(const U *begin, const U *end)
+{
+    assert(begin <= end);
+    std::size_t new_size = size_ + (end - begin);
+    if (new_size > capacity_)
+        grow(new_size);
+    std::uninitialized_copy(begin, end,
+                            internal::make_ptr(ptr_, capacity_) + size_);
+    size_ = new_size;
 }
 
-namespace internal {
+namespace internal
+{
 
 // A memory buffer for POD types with the first SIZE elements stored in
 // the object itself.
 template <typename T, std::size_t SIZE, typename Allocator = std::allocator<T> >
-class MemoryBuffer : private Allocator, public Buffer<T> {
- private:
-  T data_[SIZE];
-
-  // Free memory allocated by the buffer.
-  void free() {
-    if (this->ptr_ != data_) this->deallocate(this->ptr_, this->capacity_);
-  }
+class MemoryBuffer : private Allocator, public Buffer<T>
+{
+private:
+    T data_[SIZE];
+
+    // Deallocate memory allocated by the buffer.
+    void deallocate()
+    {
+        if (this->ptr_ != data_) Allocator::deallocate(this->ptr_, this->capacity_);
+    }
 
- protected:
-  void grow(std::size_t size);
+protected:
+    void grow(std::size_t size);
 
- public:
-  explicit MemoryBuffer(const Allocator &alloc = Allocator())
-      : Allocator(alloc), Buffer<T>(data_, SIZE) {}
-  ~MemoryBuffer() { free(); }
+public:
+    explicit MemoryBuffer(const Allocator &alloc = Allocator())
+        : Allocator(alloc), Buffer<T>(data_, SIZE) {}
+    ~MemoryBuffer()
+    {
+        deallocate();
+    }
 
 #if FMT_USE_RVALUE_REFERENCES
- private:
-  // Move data from other to this buffer.
-  void move(MemoryBuffer &other) {
-    Allocator &this_alloc = *this, &other_alloc = other;
-    this_alloc = std::move(other_alloc);
-    this->size_ = other.size_;
-    this->capacity_ = other.capacity_;
-    if (other.ptr_ == other.data_) {
-      this->ptr_ = data_;
-      std::copy(other.data_,
-                other.data_ + this->size_, make_ptr(data_, this->capacity_));
-    } else {
-      this->ptr_ = other.ptr_;
-      // Set pointer to the inline array so that delete is not called
-      // when freeing.
-      other.ptr_ = other.data_;
+private:
+    // Move data from other to this buffer.
+    void move(MemoryBuffer &other)
+    {
+        Allocator &this_alloc = *this, &other_alloc = other;
+        this_alloc = std::move(other_alloc);
+        this->size_ = other.size_;
+        this->capacity_ = other.capacity_;
+        if (other.ptr_ == other.data_)
+        {
+            this->ptr_ = data_;
+            std::uninitialized_copy(other.data_, other.data_ + this->size_,
+                                    make_ptr(data_, this->capacity_));
+        }
+        else
+        {
+            this->ptr_ = other.ptr_;
+            // Set pointer to the inline array so that delete is not called
+            // when deallocating.
+            other.ptr_ = other.data_;
+        }
     }
-  }
 
- public:
-  MemoryBuffer(MemoryBuffer &&other) {
-    move(other);
-  }
+public:
+    MemoryBuffer(MemoryBuffer &&other)
+    {
+        move(other);
+    }
 
-  MemoryBuffer &operator=(MemoryBuffer &&other) {
-    assert(this != &other);
-    free();
-    move(other);
-    return *this;
-  }
+    MemoryBuffer &operator=(MemoryBuffer &&other)
+    {
+        assert(this != &other);
+        deallocate();
+        move(other);
+        return *this;
+    }
 #endif
 
-  // Returns a copy of the allocator associated with this buffer.
-  Allocator get_allocator() const { return *this; }
+    // Returns a copy of the allocator associated with this buffer.
+    Allocator get_allocator() const
+    {
+        return *this;
+    }
 };
 
 template <typename T, std::size_t SIZE, typename Allocator>
-void MemoryBuffer<T, SIZE, Allocator>::grow(std::size_t size) {
-  std::size_t new_capacity =
-      (std::max)(size, this->capacity_ + this->capacity_ / 2);
-  T *new_ptr = this->allocate(new_capacity);
-  // The following code doesn't throw, so the raw pointer above doesn't leak.
-  std::copy(this->ptr_,
-            this->ptr_ + this->size_, make_ptr(new_ptr, new_capacity));
-  std::size_t old_capacity = this->capacity_;
-  T *old_ptr = this->ptr_;
-  this->capacity_ = new_capacity;
-  this->ptr_ = new_ptr;
-  // deallocate may throw (at least in principle), but it doesn't matter since
-  // the buffer already uses the new storage and will deallocate it in case
-  // of exception.
-  if (old_ptr != data_)
-    this->deallocate(old_ptr, old_capacity);
+void MemoryBuffer<T, SIZE, Allocator>::grow(std::size_t size)
+{
+    std::size_t new_capacity = this->capacity_ + this->capacity_ / 2;
+    if (size > new_capacity)
+        new_capacity = size;
+    T *new_ptr = this->allocate(new_capacity);
+    // The following code doesn't throw, so the raw pointer above doesn't leak.
+    std::uninitialized_copy(this->ptr_, this->ptr_ + this->size_,
+                            make_ptr(new_ptr, new_capacity));
+    std::size_t old_capacity = this->capacity_;
+    T *old_ptr = this->ptr_;
+    this->capacity_ = new_capacity;
+    this->ptr_ = new_ptr;
+    // deallocate may throw (at least in principle), but it doesn't matter since
+    // the buffer already uses the new storage and will deallocate it in case
+    // of exception.
+    if (old_ptr != data_)
+        Allocator::deallocate(old_ptr, old_capacity);
 }
 
 // A fixed-size buffer.
 template <typename Char>
-class FixedBuffer : public fmt::Buffer<Char> {
- public:
-  FixedBuffer(Char *array, std::size_t size) : fmt::Buffer<Char>(array, size) {}
+class FixedBuffer : public fmt::Buffer<Char>
+{
+public:
+    FixedBuffer(Char *array, std::size_t size) : fmt::Buffer<Char>(array, size) {}
 
- protected:
-  void grow(std::size_t size);
+protected:
+    FMT_API void grow(std::size_t size);
 };
 
-#ifndef _MSC_VER
-// Portable version of signbit.
-inline int getsign(double x) {
-  // When compiled in C++11 mode signbit is no longer a macro but a function
-  // defined in namespace std and the macro is undefined.
-# ifdef signbit
-  return signbit(x);
-# else
-  return std::signbit(x);
-# endif
-}
-
-// Portable version of isinf.
-# ifdef isinf
-inline int isinfinity(double x) { return isinf(x); }
-inline int isinfinity(long double x) { return isinf(x); }
-# else
-inline int isinfinity(double x) { return std::isinf(x); }
-inline int isinfinity(long double x) { return std::isinf(x); }
-# endif
-#else
-inline int getsign(double value) {
-  if (value < 0) return 1;
-  if (value == value) return 0;
-  int dec = 0, sign = 0;
-  char buffer[2];  // The buffer size must be >= 2 or _ecvt_s will fail.
-  _ecvt_s(buffer, sizeof(buffer), value, 0, &dec, &sign);
-  return sign;
-}
-inline int isinfinity(double x) { return !_finite(x); }
-inline int isinfinity(long double x) {
-  return !_finite(static_cast<double>(x));
-}
-#endif
-
 template <typename Char>
-class BasicCharTraits {
- public:
-#if _SECURE_SCL
-  typedef stdext::checked_array_iterator<Char*> CharPtr;
+class BasicCharTraits
+{
+public:
+#if FMT_SECURE_SCL
+    typedef stdext::checked_array_iterator<Char*> CharPtr;
 #else
-  typedef Char *CharPtr;
+    typedef Char *CharPtr;
 #endif
-  static Char cast(wchar_t value) { return static_cast<Char>(value); }
+    static Char cast(int value)
+    {
+        return static_cast<Char>(value);
+    }
 };
 
 template <typename Char>
 class CharTraits;
 
 template <>
-class CharTraits<char> : public BasicCharTraits<char> {
- private:
-  // Conversion from wchar_t to char is not allowed.
-  static char convert(wchar_t);
-
- public:
-  static char convert(char value) { return value; }
+class CharTraits<char> : public BasicCharTraits<char>
+{
+private:
+    // Conversion from wchar_t to char is not allowed.
+    static char convert(wchar_t);
+
+public:
+    static char convert(char value)
+    {
+        return value;
+    }
 
-  // Formats a floating-point number.
-  template <typename T>
-  static int format_float(char *buffer, std::size_t size,
-      const char *format, unsigned width, int precision, T value);
+    // Formats a floating-point number.
+    template <typename T>
+    FMT_API static int format_float(char *buffer, std::size_t size,
+                                    const char *format, unsigned width, int precision, T value);
 };
 
 template <>
-class CharTraits<wchar_t> : public BasicCharTraits<wchar_t> {
- public:
-  static wchar_t convert(char value) { return value; }
-  static wchar_t convert(wchar_t value) { return value; }
+class CharTraits<wchar_t> : public BasicCharTraits<wchar_t>
+{
+public:
+    static wchar_t convert(char value)
+    {
+        return value;
+    }
+    static wchar_t convert(wchar_t value)
+    {
+        return value;
+    }
 
-  template <typename T>
-  static int format_float(wchar_t *buffer, std::size_t size,
-      const wchar_t *format, unsigned width, int precision, T value);
+    template <typename T>
+    FMT_API static int format_float(wchar_t *buffer, std::size_t size,
+                                    const wchar_t *format, unsigned width, int precision, T value);
 };
 
 // Checks if a number is negative - used to avoid warnings.
 template <bool IsSigned>
-struct SignChecker {
-  template <typename T>
-  static bool is_negative(T value) { return value < 0; }
+struct SignChecker
+{
+    template <typename T>
+    static bool is_negative(T value)
+    {
+        return value < 0;
+    }
 };
 
 template <>
-struct SignChecker<false> {
-  template <typename T>
-  static bool is_negative(T) { return false; }
+struct SignChecker<false>
+{
+    template <typename T>
+    static bool is_negative(T)
+    {
+        return false;
+    }
 };
 
 // Returns true if value is negative, false otherwise.
 // Same as (value < 0) but doesn't produce warnings if T is an unsigned type.
 template <typename T>
-inline bool is_negative(T value) {
-  return SignChecker<std::numeric_limits<T>::is_signed>::is_negative(value);
+inline bool is_negative(T value)
+{
+    return SignChecker<std::numeric_limits<T>::is_signed>::is_negative(value);
 }
 
 // Selects uint32_t if FitsIn32Bits is true, uint64_t otherwise.
 template <bool FitsIn32Bits>
-struct TypeSelector { typedef uint32_t Type; };
+struct TypeSelector
+{
+    typedef uint32_t Type;
+};
 
 template <>
-struct TypeSelector<false> { typedef uint64_t Type; };
+struct TypeSelector<false>
+{
+    typedef uint64_t Type;
+};
 
 template <typename T>
-struct IntTraits {
-  // Smallest of uint32_t and uint64_t that is large enough to represent
-  // all values of T.
-  typedef typename
+struct IntTraits
+{
+    // Smallest of uint32_t and uint64_t that is large enough to represent
+    // all values of T.
+    typedef typename
     TypeSelector<std::numeric_limits<T>::digits <= 32>::Type MainType;
 };
 
 // MakeUnsigned<T>::Type gives an unsigned type corresponding to integer type T.
 template <typename T>
-struct MakeUnsigned { typedef T Type; };
+struct MakeUnsigned
+{
+    typedef T Type;
+};
 
 #define FMT_SPECIALIZE_MAKE_UNSIGNED(T, U) \
   template <> \
@@ -654,15 +920,16 @@ FMT_SPECIALIZE_MAKE_UNSIGNED(int, unsigned);
 FMT_SPECIALIZE_MAKE_UNSIGNED(long, unsigned long);
 FMT_SPECIALIZE_MAKE_UNSIGNED(LongLong, ULongLong);
 
-void report_unknown_type(char code, const char *type);
+FMT_API void report_unknown_type(char code, const char *type);
 
 // Static data is placed in this class template to allow header-only
 // configuration.
 template <typename T = void>
-struct BasicData {
-  static const uint32_t POWERS_OF_10_32[];
-  static const uint64_t POWERS_OF_10_64[];
-  static const char DIGITS[];
+struct FMT_API BasicData
+{
+    static const uint32_t POWERS_OF_10_32[];
+    static const uint64_t POWERS_OF_10_64[];
+    static const char DIGITS[];
 };
 
 typedef BasicData<> Data;
@@ -678,58 +945,65 @@ typedef BasicData<> Data;
 #ifdef FMT_BUILTIN_CLZLL
 // Returns the number of decimal digits in n. Leading zeros are not counted
 // except for n == 0 in which case count_digits returns 1.
-inline unsigned count_digits(uint64_t n) {
-  // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10
-  // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits.
-  unsigned t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12;
-  return t - (n < Data::POWERS_OF_10_64[t]) + 1;
+inline unsigned count_digits(uint64_t n)
+{
+    // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10
+    // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits.
+    unsigned t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12;
+    return t - (n < Data::POWERS_OF_10_64[t]) + 1;
 }
 #else
 // Fallback version of count_digits used when __builtin_clz is not available.
-inline unsigned count_digits(uint64_t n) {
-  unsigned count = 1;
-  for (;;) {
-    // Integer division is slow so do it for a group of four digits instead
-    // of for every digit. The idea comes from the talk by Alexandrescu
-    // "Three Optimization Tips for C++". See speed-test for a comparison.
-    if (n < 10) return count;
-    if (n < 100) return count + 1;
-    if (n < 1000) return count + 2;
-    if (n < 10000) return count + 3;
-    n /= 10000u;
-    count += 4;
-  }
+inline unsigned count_digits(uint64_t n)
+{
+    unsigned count = 1;
+    for (;;)
+    {
+        // Integer division is slow so do it for a group of four digits instead
+        // of for every digit. The idea comes from the talk by Alexandrescu
+        // "Three Optimization Tips for C++". See speed-test for a comparison.
+        if (n < 10) return count;
+        if (n < 100) return count + 1;
+        if (n < 1000) return count + 2;
+        if (n < 10000) return count + 3;
+        n /= 10000u;
+        count += 4;
+    }
 }
 #endif
 
 #ifdef FMT_BUILTIN_CLZ
 // Optional version of count_digits for better performance on 32-bit platforms.
-inline unsigned count_digits(uint32_t n) {
-  uint32_t t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12;
-  return t - (n < Data::POWERS_OF_10_32[t]) + 1;
+inline unsigned count_digits(uint32_t n)
+{
+    uint32_t t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12;
+    return t - (n < Data::POWERS_OF_10_32[t]) + 1;
 }
 #endif
 
 // Formats a decimal unsigned integer value writing into buffer.
 template <typename UInt, typename Char>
-inline void format_decimal(Char *buffer, UInt value, unsigned num_digits) {
-  buffer += num_digits;
-  while (value >= 100) {
-    // Integer division is slow so do it for a group of two digits instead
-    // of for every digit. The idea comes from the talk by Alexandrescu
-    // "Three Optimization Tips for C++". See speed-test for a comparison.
-    unsigned index = (value % 100) * 2;
-    value /= 100;
+inline void format_decimal(Char *buffer, UInt value, unsigned num_digits)
+{
+    buffer += num_digits;
+    while (value >= 100)
+    {
+        // Integer division is slow so do it for a group of two digits instead
+        // of for every digit. The idea comes from the talk by Alexandrescu
+        // "Three Optimization Tips for C++". See speed-test for a comparison.
+        unsigned index = static_cast<unsigned>((value % 100) * 2);
+        value /= 100;
+        *--buffer = Data::DIGITS[index + 1];
+        *--buffer = Data::DIGITS[index];
+    }
+    if (value < 10)
+    {
+        *--buffer = static_cast<char>('0' + value);
+        return;
+    }
+    unsigned index = static_cast<unsigned>(value * 2);
     *--buffer = Data::DIGITS[index + 1];
     *--buffer = Data::DIGITS[index];
-  }
-  if (value < 10) {
-    *--buffer = static_cast<char>('0' + value);
-    return;
-  }
-  unsigned index = static_cast<unsigned>(value * 2);
-  *--buffer = Data::DIGITS[index + 1];
-  *--buffer = Data::DIGITS[index];
 }
 
 #ifndef _WIN32
@@ -743,90 +1017,122 @@ inline void format_decimal(Char *buffer, UInt value, unsigned num_digits) {
 #if FMT_USE_WINDOWS_H
 // A converter from UTF-8 to UTF-16.
 // It is only provided for Windows since other systems support UTF-8 natively.
-class UTF8ToUTF16 {
- private:
-  MemoryBuffer<wchar_t, INLINE_BUFFER_SIZE> buffer_;
-
- public:
-  explicit UTF8ToUTF16(StringRef s);
-  operator WStringRef() const { return WStringRef(&buffer_[0], size()); }
-  size_t size() const { return buffer_.size() - 1; }
-  const wchar_t *c_str() const { return &buffer_[0]; }
-  std::wstring str() const { return std::wstring(&buffer_[0], size()); }
+class UTF8ToUTF16
+{
+private:
+    MemoryBuffer<wchar_t, INLINE_BUFFER_SIZE> buffer_;
+
+public:
+    FMT_API explicit UTF8ToUTF16(StringRef s);
+    operator WStringRef() const
+    {
+        return WStringRef(&buffer_[0], size());
+    }
+    size_t size() const
+    {
+        return buffer_.size() - 1;
+    }
+    const wchar_t *c_str() const
+    {
+        return &buffer_[0];
+    }
+    std::wstring str() const
+    {
+        return std::wstring(&buffer_[0], size());
+    }
 };
 
 // A converter from UTF-16 to UTF-8.
 // It is only provided for Windows since other systems support UTF-8 natively.
-class UTF16ToUTF8 {
- private:
-  MemoryBuffer<char, INLINE_BUFFER_SIZE> buffer_;
-
- public:
-  UTF16ToUTF8() {}
-  explicit UTF16ToUTF8(WStringRef s);
-  operator StringRef() const { return StringRef(&buffer_[0], size()); }
-  size_t size() const { return buffer_.size() - 1; }
-  const char *c_str() const { return &buffer_[0]; }
-  std::string str() const { return std::string(&buffer_[0], size()); }
-
-  // Performs conversion returning a system error code instead of
-  // throwing exception on conversion error. This method may still throw
-  // in case of memory allocation error.
-  int convert(WStringRef s);
-};
-
-void format_windows_error(fmt::Writer &out, int error_code,
-                          fmt::StringRef message) FMT_NOEXCEPT;
+class UTF16ToUTF8
+{
+private:
+    MemoryBuffer<char, INLINE_BUFFER_SIZE> buffer_;
+
+public:
+    UTF16ToUTF8() {}
+    FMT_API explicit UTF16ToUTF8(WStringRef s);
+    operator StringRef() const
+    {
+        return StringRef(&buffer_[0], size());
+    }
+    size_t size() const
+    {
+        return buffer_.size() - 1;
+    }
+    const char *c_str() const
+    {
+        return &buffer_[0];
+    }
+    std::string str() const
+    {
+        return std::string(&buffer_[0], size());
+    }
+
+    // Performs conversion returning a system error code instead of
+    // throwing exception on conversion error. This method may still throw
+    // in case of memory allocation error.
+    FMT_API int convert(WStringRef s);
+};
+
+FMT_API void format_windows_error(fmt::Writer &out, int error_code,
+                                  fmt::StringRef message) FMT_NOEXCEPT;
 #endif
 
-void format_system_error(fmt::Writer &out, int error_code,
-                         fmt::StringRef message) FMT_NOEXCEPT;
+FMT_API void format_system_error(fmt::Writer &out, int error_code,
+                                 fmt::StringRef message) FMT_NOEXCEPT;
 
 // A formatting argument value.
-struct Value {
-  template <typename Char>
-  struct StringValue {
-    const Char *value;
-    std::size_t size;
-  };
-
-  typedef void (*FormatFunc)(
-      void *formatter, const void *arg, void *format_str_ptr);
-
-  struct CustomValue {
-    const void *value;
-    FormatFunc format;
-  };
-
-  union {
-    int int_value;
-    unsigned uint_value;
-    LongLong long_long_value;
-    ULongLong ulong_long_value;
-    double double_value;
-    long double long_double_value;
-    const void *pointer;
-    StringValue<char> string;
-    StringValue<signed char> sstring;
-    StringValue<unsigned char> ustring;
-    StringValue<wchar_t> wstring;
-    CustomValue custom;
-  };
-
-  enum Type {
-    NONE, NAMED_ARG,
-    // Integer types should go first,
-    INT, UINT, LONG_LONG, ULONG_LONG, BOOL, CHAR, LAST_INTEGER_TYPE = CHAR,
-    // followed by floating-point types.
-    DOUBLE, LONG_DOUBLE, LAST_NUMERIC_TYPE = LONG_DOUBLE,
-    CSTRING, STRING, WSTRING, POINTER, CUSTOM
-  };
+struct Value
+{
+    template <typename Char>
+    struct StringValue
+    {
+        const Char *value;
+        std::size_t size;
+    };
+
+    typedef void(*FormatFunc)(
+        void *formatter, const void *arg, void *format_str_ptr);
+
+    struct CustomValue
+    {
+        const void *value;
+        FormatFunc format;
+    };
+
+    union
+    {
+        int int_value;
+        unsigned uint_value;
+        LongLong long_long_value;
+        ULongLong ulong_long_value;
+        double double_value;
+        long double long_double_value;
+        const void *pointer;
+        StringValue<char> string;
+        StringValue<signed char> sstring;
+        StringValue<unsigned char> ustring;
+        StringValue<wchar_t> wstring;
+        CustomValue custom;
+    };
+
+    enum Type
+    {
+        NONE, NAMED_ARG,
+        // Integer types should go first,
+        INT, UINT, LONG_LONG, ULONG_LONG, BOOL, CHAR, LAST_INTEGER_TYPE = CHAR,
+        // followed by floating-point types.
+        DOUBLE, LONG_DOUBLE, LAST_NUMERIC_TYPE = LONG_DOUBLE,
+        CSTRING, STRING, WSTRING, POINTER, CUSTOM
+    };
 };
 
 // A formatting argument. It is a POD type to allow storage in
 // internal::MemoryBuffer.
-struct Arg : Value {
-  Type type;
+struct Arg : Value
+{
+    Type type;
 };
 
 template <typename Char>
@@ -838,105 +1144,175 @@ struct Null {};
 // A helper class template to enable or disable overloads taking wide
 // characters and strings in MakeValue.
 template <typename T, typename Char>
-struct WCharHelper {
-  typedef Null<T> Supported;
-  typedef T Unsupported;
+struct WCharHelper
+{
+    typedef Null<T> Supported;
+    typedef T Unsupported;
 };
 
 template <typename T>
-struct WCharHelper<T, wchar_t> {
-  typedef T Supported;
-  typedef Null<T> Unsupported;
+struct WCharHelper<T, wchar_t>
+{
+    typedef T Supported;
+    typedef Null<T> Unsupported;
 };
 
+typedef char Yes[1];
+typedef char No[2];
+
+// These are non-members to workaround an overload resolution bug in bcc32.
+Yes &convert(fmt::ULongLong);
+Yes &convert(std::ostream &);
+No &convert(...);
+
 template <typename T>
-class IsConvertibleToInt {
- private:
-  typedef char yes[1];
-  typedef char no[2];
+T &get();
+
+struct DummyStream : std::ostream
+{
+    DummyStream();  // Suppress a bogus warning in MSVC.
+    // Hide all operator<< overloads from std::ostream.
+    void operator<<(Null<>);
+};
+
+No &operator<<(std::ostream &, int);
+
+template<typename T, bool ENABLE_CONVERSION>
+struct ConvertToIntImpl
+{
+    enum { value = false };
+};
+
+template<typename T>
+struct ConvertToIntImpl<T, true>
+{
+    // Convert to int only if T doesn't have an overloaded operator<<.
+    enum
+    {
+        value = sizeof(convert(get<DummyStream>() << get<T>())) == sizeof(No)
+    };
+};
 
-  static const T &get();
+template<typename T, bool ENABLE_CONVERSION>
+struct ConvertToIntImpl2
+{
+    enum { value = false };
+};
+
+template<typename T>
+struct ConvertToIntImpl2<T, true>
+{
+    enum
+    {
+        // Don't convert numeric types.
+        value = ConvertToIntImpl<T, !std::numeric_limits<T>::is_specialized>::value
+    };
+};
 
-  static yes &convert(fmt::ULongLong);
-  static no &convert(...);
-  
- public:
-  enum { value = (sizeof(convert(get())) == sizeof(yes)) };
+template<typename T>
+struct ConvertToInt
+{
+    enum { enable_conversion = sizeof(convert(get<T>())) == sizeof(Yes) };
+    enum { value = ConvertToIntImpl2<T, enable_conversion>::value };
 };
 
-#define FMT_CONVERTIBLE_TO_INT(Type) \
+#define FMT_DISABLE_CONVERSION_TO_INT(Type) \
   template <> \
-  class IsConvertibleToInt<Type> { \
-   public: \
-    enum { value = 1 }; \
-  }
+  struct ConvertToInt<Type> {  enum { value = 0 }; }
 
 // Silence warnings about convering float to int.
-FMT_CONVERTIBLE_TO_INT(float);
-FMT_CONVERTIBLE_TO_INT(double);
-FMT_CONVERTIBLE_TO_INT(long double);
+FMT_DISABLE_CONVERSION_TO_INT(float);
+FMT_DISABLE_CONVERSION_TO_INT(double);
+FMT_DISABLE_CONVERSION_TO_INT(long double);
 
 template<bool B, class T = void>
 struct EnableIf {};
 
 template<class T>
-struct EnableIf<true, T> { typedef T type; };
+struct EnableIf<true, T>
+{
+    typedef T type;
+};
 
 template<bool B, class T, class F>
-struct Conditional { typedef T type; };
+struct Conditional
+{
+    typedef T type;
+};
 
 template<class T, class F>
-struct Conditional<false, T, F> { typedef F type; };
+struct Conditional<false, T, F>
+{
+    typedef F type;
+};
 
-// A helper function to suppress bogus "conditional expression is constant"
-// warnings.
-inline bool check(bool value) { return value; }
+// For bcc32 which doesn't understand ! in template arguments.
+template<bool>
+struct Not
+{
+    enum { value = 0 };
+};
+
+template<>
+struct Not<false>
+{
+    enum { value = 1 };
+};
 
 // Makes an Arg object from any type.
-template <typename Char>
-class MakeValue : public Arg {
- private:
-  // The following two methods are private to disallow formatting of
-  // arbitrary pointers. If you want to output a pointer cast it to
-  // "void *" or "const void *". In particular, this forbids formatting
-  // of "[const] volatile char *" which is printed as bool by iostreams.
-  // Do not implement!
-  template <typename T>
-  MakeValue(const T *value);
-  template <typename T>
-  MakeValue(T *value);
-
-  // The following methods are private to disallow formatting of wide
-  // characters and strings into narrow strings as in
-  //   fmt::format("{}", L"test");
-  // To fix this, use a wide format string: fmt::format(L"{}", L"test").
-  MakeValue(typename WCharHelper<wchar_t, Char>::Unsupported);
-  MakeValue(typename WCharHelper<wchar_t *, Char>::Unsupported);
-  MakeValue(typename WCharHelper<const wchar_t *, Char>::Unsupported);
-  MakeValue(typename WCharHelper<const std::wstring &, Char>::Unsupported);
-  MakeValue(typename WCharHelper<WStringRef, Char>::Unsupported);
-
-  void set_string(StringRef str) {
-    string.value = str.data();
-    string.size = str.size();
-  }
+template <typename Formatter>
+class MakeValue : public Arg
+{
+public:
+    typedef typename Formatter::Char Char;
+
+private:
+    // The following two methods are private to disallow formatting of
+    // arbitrary pointers. If you want to output a pointer cast it to
+    // "void *" or "const void *". In particular, this forbids formatting
+    // of "[const] volatile char *" which is printed as bool by iostreams.
+    // Do not implement!
+    template <typename T>
+    MakeValue(const T *value);
+    template <typename T>
+    MakeValue(T *value);
+
+    // The following methods are private to disallow formatting of wide
+    // characters and strings into narrow strings as in
+    //   fmt::format("{}", L"test");
+    // To fix this, use a wide format string: fmt::format(L"{}", L"test").
+#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
+    MakeValue(typename WCharHelper<wchar_t, Char>::Unsupported);
+#endif
+    MakeValue(typename WCharHelper<wchar_t *, Char>::Unsupported);
+    MakeValue(typename WCharHelper<const wchar_t *, Char>::Unsupported);
+    MakeValue(typename WCharHelper<const std::wstring &, Char>::Unsupported);
+    MakeValue(typename WCharHelper<WStringRef, Char>::Unsupported);
+
+    void set_string(StringRef str)
+    {
+        string.value = str.data();
+        string.size = str.size();
+    }
 
-  void set_string(WStringRef str) {
-    wstring.value = str.data();
-    wstring.size = str.size();
-  }
+    void set_string(WStringRef str)
+    {
+        wstring.value = str.data();
+        wstring.size = str.size();
+    }
 
-  // Formats an argument of a custom type, such as a user-defined class.
-  template <typename T>
-  static void format_custom_arg(
-      void *formatter, const void *arg, void *format_str_ptr) {
-    format(*static_cast<BasicFormatter<Char>*>(formatter),
-           *static_cast<const Char**>(format_str_ptr),
-           *static_cast<const T*>(arg));
-  }
+    // Formats an argument of a custom type, such as a user-defined class.
+    template <typename T>
+    static void format_custom_arg(
+        void *formatter, const void *arg, void *format_str_ptr)
+    {
+        format(*static_cast<Formatter*>(formatter),
+               *static_cast<const Char**>(format_str_ptr),
+               *static_cast<const T*>(arg));
+    }
 
- public:
-  MakeValue() {}
+public:
+    MakeValue() {}
 
 #define FMT_MAKE_VALUE_(Type, field, TYPE, rhs) \
   MakeValue(Type value) { field = rhs; } \
@@ -945,111 +1321,135 @@ class MakeValue : public Arg {
 #define FMT_MAKE_VALUE(Type, field, TYPE) \
   FMT_MAKE_VALUE_(Type, field, TYPE, value)
 
-  FMT_MAKE_VALUE(bool, int_value, BOOL)
-  FMT_MAKE_VALUE(short, int_value, INT)
-  FMT_MAKE_VALUE(unsigned short, uint_value, UINT)
-  FMT_MAKE_VALUE(int, int_value, INT)
-  FMT_MAKE_VALUE(unsigned, uint_value, UINT)
-
-  MakeValue(long value) {
-    // To minimize the number of types we need to deal with, long is
-    // translated either to int or to long long depending on its size.
-    if (check(sizeof(long) == sizeof(int)))
-      int_value = static_cast<int>(value);
-    else
-      long_long_value = value;
-  }
-  static uint64_t type(long) {
-    return sizeof(long) == sizeof(int) ? Arg::INT : Arg::LONG_LONG;
-  }
+    FMT_MAKE_VALUE(bool, int_value, BOOL)
+    FMT_MAKE_VALUE(short, int_value, INT)
+    FMT_MAKE_VALUE(unsigned short, uint_value, UINT)
+    FMT_MAKE_VALUE(int, int_value, INT)
+    FMT_MAKE_VALUE(unsigned, uint_value, UINT)
+
+    MakeValue(long value)
+    {
+        // To minimize the number of types we need to deal with, long is
+        // translated either to int or to long long depending on its size.
+        if (check(sizeof(long) == sizeof(int)))
+            int_value = static_cast<int>(value);
+        else
+            long_long_value = value;
+    }
+    static uint64_t type(long)
+    {
+        return sizeof(long) == sizeof(int) ? Arg::INT : Arg::LONG_LONG;
+    }
 
-  MakeValue(unsigned long value) {
-    if (check(sizeof(unsigned long) == sizeof(unsigned)))
-      uint_value = static_cast<unsigned>(value);
-    else
-      ulong_long_value = value;
-  }
-  static uint64_t type(unsigned long) {
-    return sizeof(unsigned long) == sizeof(unsigned) ?
-          Arg::UINT : Arg::ULONG_LONG;
-  }
+    MakeValue(unsigned long value)
+    {
+        if (check(sizeof(unsigned long) == sizeof(unsigned)))
+            uint_value = static_cast<unsigned>(value);
+        else
+            ulong_long_value = value;
+    }
+    static uint64_t type(unsigned long)
+    {
+        return sizeof(unsigned long) == sizeof(unsigned) ?
+               Arg::UINT : Arg::ULONG_LONG;
+    }
 
-  FMT_MAKE_VALUE(LongLong, long_long_value, LONG_LONG)
-  FMT_MAKE_VALUE(ULongLong, ulong_long_value, ULONG_LONG)
-  FMT_MAKE_VALUE(float, double_value, DOUBLE)
-  FMT_MAKE_VALUE(double, double_value, DOUBLE)
-  FMT_MAKE_VALUE(long double, long_double_value, LONG_DOUBLE)
-  FMT_MAKE_VALUE(signed char, int_value, CHAR)
-  FMT_MAKE_VALUE(unsigned char, int_value, CHAR)
-  FMT_MAKE_VALUE(char, int_value, CHAR)
-
-  MakeValue(typename WCharHelper<wchar_t, Char>::Supported value) {
-    int_value = value;
-  }
-  static uint64_t type(wchar_t) { return Arg::CHAR; }
+    FMT_MAKE_VALUE(LongLong, long_long_value, LONG_LONG)
+    FMT_MAKE_VALUE(ULongLong, ulong_long_value, ULONG_LONG)
+    FMT_MAKE_VALUE(float, double_value, DOUBLE)
+    FMT_MAKE_VALUE(double, double_value, DOUBLE)
+    FMT_MAKE_VALUE(long double, long_double_value, LONG_DOUBLE)
+    FMT_MAKE_VALUE(signed char, int_value, INT)
+    FMT_MAKE_VALUE(unsigned char, uint_value, UINT)
+    FMT_MAKE_VALUE(char, int_value, CHAR)
+
+#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
+    MakeValue(typename WCharHelper<wchar_t, Char>::Supported value)
+    {
+        int_value = value;
+    }
+    static uint64_t type(wchar_t)
+    {
+        return Arg::CHAR;
+    }
+#endif
 
 #define FMT_MAKE_STR_VALUE(Type, TYPE) \
   MakeValue(Type value) { set_string(value); } \
   static uint64_t type(Type) { return Arg::TYPE; }
 
-  FMT_MAKE_VALUE(char *, string.value, CSTRING)
-  FMT_MAKE_VALUE(const char *, string.value, CSTRING)
-  FMT_MAKE_VALUE(const signed char *, sstring.value, CSTRING)
-  FMT_MAKE_VALUE(const unsigned char *, ustring.value, CSTRING)
-  FMT_MAKE_STR_VALUE(const std::string &, STRING)
-  FMT_MAKE_STR_VALUE(StringRef, STRING)
-  FMT_MAKE_VALUE_(CStringRef, string.value, CSTRING, value.c_str())
+    FMT_MAKE_VALUE(char *, string.value, CSTRING)
+    FMT_MAKE_VALUE(const char *, string.value, CSTRING)
+    FMT_MAKE_VALUE(const signed char *, sstring.value, CSTRING)
+    FMT_MAKE_VALUE(const unsigned char *, ustring.value, CSTRING)
+    FMT_MAKE_STR_VALUE(const std::string &, STRING)
+    FMT_MAKE_STR_VALUE(StringRef, STRING)
+    FMT_MAKE_VALUE_(CStringRef, string.value, CSTRING, value.c_str())
 
 #define FMT_MAKE_WSTR_VALUE(Type, TYPE) \
   MakeValue(typename WCharHelper<Type, Char>::Supported value) { \
     set_string(value); \
-  } \
+              } \
   static uint64_t type(Type) { return Arg::TYPE; }
 
-  FMT_MAKE_WSTR_VALUE(wchar_t *, WSTRING)
-  FMT_MAKE_WSTR_VALUE(const wchar_t *, WSTRING)
-  FMT_MAKE_WSTR_VALUE(const std::wstring &, WSTRING)
-  FMT_MAKE_WSTR_VALUE(WStringRef, WSTRING)
-
-  FMT_MAKE_VALUE(void *, pointer, POINTER)
-  FMT_MAKE_VALUE(const void *, pointer, POINTER)
-
-  template <typename T>
-  MakeValue(const T &value,
-            typename EnableIf<!IsConvertibleToInt<T>::value, int>::type = 0) {
-    custom.value = &value;
-    custom.format = &format_custom_arg<T>;
-  }
+    FMT_MAKE_WSTR_VALUE(wchar_t *, WSTRING)
+    FMT_MAKE_WSTR_VALUE(const wchar_t *, WSTRING)
+    FMT_MAKE_WSTR_VALUE(const std::wstring &, WSTRING)
+    FMT_MAKE_WSTR_VALUE(WStringRef, WSTRING)
+
+    FMT_MAKE_VALUE(void *, pointer, POINTER)
+    FMT_MAKE_VALUE(const void *, pointer, POINTER)
+
+    template <typename T>
+    MakeValue(const T &value,
+              typename EnableIf<Not<
+              ConvertToInt<T>::value>::value, int>::type = 0)
+    {
+        custom.value = &value;
+        custom.format = &format_custom_arg<T>;
+    }
 
-  template <typename T>
-  MakeValue(const T &value,
-            typename EnableIf<IsConvertibleToInt<T>::value, int>::type = 0) {
-    int_value = value;
-  }
+    template <typename T>
+    MakeValue(const T &value,
+              typename EnableIf<ConvertToInt<T>::value, int>::type = 0)
+    {
+        int_value = value;
+    }
 
-  template <typename T>
-  static uint64_t type(const T &) {
-    return IsConvertibleToInt<T>::value ? Arg::INT : Arg::CUSTOM;
-  }
+    template <typename T>
+    static uint64_t type(const T &)
+    {
+        return ConvertToInt<T>::value ? Arg::INT : Arg::CUSTOM;
+    }
 
-  // Additional template param `Char_` is needed here because make_type always
-  // uses MakeValue<char>.
-  template <typename Char_>
-  MakeValue(const NamedArg<Char_> &value) { pointer = &value; }
+    // Additional template param `Char_` is needed here because make_type always
+    // uses char.
+    template <typename Char_>
+    MakeValue(const NamedArg<Char_> &value)
+    {
+        pointer = &value;
+    }
 
-  template <typename Char_>
-  static uint64_t type(const NamedArg<Char_> &) { return Arg::NAMED_ARG; }
+    template <typename Char_>
+    static uint64_t type(const NamedArg<Char_> &)
+    {
+        return Arg::NAMED_ARG;
+    }
 };
 
 template <typename Char>
-struct NamedArg : Arg {
-  BasicStringRef<Char> name;
+struct NamedArg : Arg
+{
+    BasicStringRef<Char> name;
 
-  template <typename T>
-  NamedArg(BasicStringRef<Char> argname, const T &value)
-  : name(argname), Arg(MakeValue<Char>(value)) {
-    type = static_cast<internal::Arg::Type>(MakeValue<Char>::type(value));
-  }
+    typedef internal::MakeValue< BasicFormatter<Char> > MakeValue;
+
+    template <typename T>
+    NamedArg(BasicStringRef<Char> argname, const T &value)
+        : Arg(MakeValue(value)), name(argname)
+    {
+        type = static_cast<Arg::Type>(MakeValue::type(value));
+    }
 };
 
 #define FMT_DISPATCH(call) static_cast<Impl*>(this)->call
@@ -1075,108 +1475,125 @@ struct NamedArg : Arg {
 // ArgVisitor uses the curiously recurring template pattern:
 // http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern
 template <typename Impl, typename Result>
-class ArgVisitor {
- public:
-  void report_unhandled_arg() {}
-
-  Result visit_unhandled_arg() {
-    FMT_DISPATCH(report_unhandled_arg());
-    return Result();
-  }
+class ArgVisitor
+{
+public:
+    void report_unhandled_arg() {}
+
+    Result visit_unhandled_arg()
+    {
+        FMT_DISPATCH(report_unhandled_arg());
+        return Result();
+    }
 
-  Result visit_int(int value) {
-    return FMT_DISPATCH(visit_any_int(value));
-  }
-  Result visit_long_long(LongLong value) {
-    return FMT_DISPATCH(visit_any_int(value));
-  }
-  Result visit_uint(unsigned value) {
-    return FMT_DISPATCH(visit_any_int(value));
-  }
-  Result visit_ulong_long(ULongLong value) {
-    return FMT_DISPATCH(visit_any_int(value));
-  }
-  Result visit_bool(bool value) {
-    return FMT_DISPATCH(visit_any_int(value));
-  }
-  Result visit_char(int value) {
-    return FMT_DISPATCH(visit_any_int(value));
-  }
-  template <typename T>
-  Result visit_any_int(T) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
+    Result visit_int(int value)
+    {
+        return FMT_DISPATCH(visit_any_int(value));
+    }
+    Result visit_long_long(LongLong value)
+    {
+        return FMT_DISPATCH(visit_any_int(value));
+    }
+    Result visit_uint(unsigned value)
+    {
+        return FMT_DISPATCH(visit_any_int(value));
+    }
+    Result visit_ulong_long(ULongLong value)
+    {
+        return FMT_DISPATCH(visit_any_int(value));
+    }
+    Result visit_bool(bool value)
+    {
+        return FMT_DISPATCH(visit_any_int(value));
+    }
+    Result visit_char(int value)
+    {
+        return FMT_DISPATCH(visit_any_int(value));
+    }
+    template <typename T>
+    Result visit_any_int(T)
+    {
+        return FMT_DISPATCH(visit_unhandled_arg());
+    }
 
-  Result visit_double(double value) {
-    return FMT_DISPATCH(visit_any_double(value));
-  }
-  Result visit_long_double(long double value) {
-    return FMT_DISPATCH(visit_any_double(value));
-  }
-  template <typename T>
-  Result visit_any_double(T) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
+    Result visit_double(double value)
+    {
+        return FMT_DISPATCH(visit_any_double(value));
+    }
+    Result visit_long_double(long double value)
+    {
+        return FMT_DISPATCH(visit_any_double(value));
+    }
+    template <typename T>
+    Result visit_any_double(T)
+    {
+        return FMT_DISPATCH(visit_unhandled_arg());
+    }
 
-  Result visit_string(Arg::StringValue<char>) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
-  Result visit_wstring(Arg::StringValue<wchar_t>) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
-  Result visit_pointer(const void *) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
-  Result visit_custom(Arg::CustomValue) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
+    Result visit_cstring(const char *)
+    {
+        return FMT_DISPATCH(visit_unhandled_arg());
+    }
+    Result visit_string(Arg::StringValue<char>)
+    {
+        return FMT_DISPATCH(visit_unhandled_arg());
+    }
+    Result visit_wstring(Arg::StringValue<wchar_t>)
+    {
+        return FMT_DISPATCH(visit_unhandled_arg());
+    }
+    Result visit_pointer(const void *)
+    {
+        return FMT_DISPATCH(visit_unhandled_arg());
+    }
+    Result visit_custom(Arg::CustomValue)
+    {
+        return FMT_DISPATCH(visit_unhandled_arg());
+    }
 
-  Result visit(const Arg &arg) {
-    switch (arg.type) {
-    default:
-      FMT_ASSERT(false, "invalid argument type");
-      return Result();
-    case Arg::INT:
-      return FMT_DISPATCH(visit_int(arg.int_value));
-    case Arg::UINT:
-      return FMT_DISPATCH(visit_uint(arg.uint_value));
-    case Arg::LONG_LONG:
-      return FMT_DISPATCH(visit_long_long(arg.long_long_value));
-    case Arg::ULONG_LONG:
-      return FMT_DISPATCH(visit_ulong_long(arg.ulong_long_value));
-    case Arg::BOOL:
-      return FMT_DISPATCH(visit_bool(arg.int_value != 0));
-    case Arg::CHAR:
-      return FMT_DISPATCH(visit_char(arg.int_value));
-    case Arg::DOUBLE:
-      return FMT_DISPATCH(visit_double(arg.double_value));
-    case Arg::LONG_DOUBLE:
-      return FMT_DISPATCH(visit_long_double(arg.long_double_value));
-    case Arg::CSTRING: {
-      Arg::StringValue<char> str = arg.string;
-      str.size = 0;
-      return FMT_DISPATCH(visit_string(str));
-    }
-    case Arg::STRING:
-      return FMT_DISPATCH(visit_string(arg.string));
-    case Arg::WSTRING:
-      return FMT_DISPATCH(visit_wstring(arg.wstring));
-    case Arg::POINTER:
-      return FMT_DISPATCH(visit_pointer(arg.pointer));
-    case Arg::CUSTOM:
-      return FMT_DISPATCH(visit_custom(arg.custom));
+    Result visit(const Arg &arg)
+    {
+        switch (arg.type)
+        {
+        default:
+            FMT_ASSERT(false, "invalid argument type");
+            return Result();
+        case Arg::INT:
+            return FMT_DISPATCH(visit_int(arg.int_value));
+        case Arg::UINT:
+            return FMT_DISPATCH(visit_uint(arg.uint_value));
+        case Arg::LONG_LONG:
+            return FMT_DISPATCH(visit_long_long(arg.long_long_value));
+        case Arg::ULONG_LONG:
+            return FMT_DISPATCH(visit_ulong_long(arg.ulong_long_value));
+        case Arg::BOOL:
+            return FMT_DISPATCH(visit_bool(arg.int_value != 0));
+        case Arg::CHAR:
+            return FMT_DISPATCH(visit_char(arg.int_value));
+        case Arg::DOUBLE:
+            return FMT_DISPATCH(visit_double(arg.double_value));
+        case Arg::LONG_DOUBLE:
+            return FMT_DISPATCH(visit_long_double(arg.long_double_value));
+        case Arg::CSTRING:
+            return FMT_DISPATCH(visit_cstring(arg.string.value));
+        case Arg::STRING:
+            return FMT_DISPATCH(visit_string(arg.string));
+        case Arg::WSTRING:
+            return FMT_DISPATCH(visit_wstring(arg.wstring));
+        case Arg::POINTER:
+            return FMT_DISPATCH(visit_pointer(arg.pointer));
+        case Arg::CUSTOM:
+            return FMT_DISPATCH(visit_custom(arg.custom));
+        }
     }
-  }
 };
 
-class RuntimeError : public std::runtime_error {
- protected:
-  RuntimeError() : std::runtime_error("") {}
+class RuntimeError : public std::runtime_error
+{
+protected:
+    RuntimeError() : std::runtime_error("") {}
 };
 
-template <typename Impl, typename Char>
-class BasicArgFormatter;
-
 template <typename Char>
 class PrintfArgFormatter;
 
@@ -1185,312 +1602,275 @@ class ArgMap;
 }  // namespace internal
 
 /** An argument list. */
-class ArgList {
- private:
-  // To reduce compiled code size per formatting function call, types of first
-  // MAX_PACKED_ARGS arguments are passed in the types_ field.
-  uint64_t types_;
-  union {
-    // If the number of arguments is less than MAX_PACKED_ARGS, the argument
-    // values are stored in values_, otherwise they are stored in args_.
-    // This is done to reduce compiled code size as storing larger objects
-    // may require more code (at least on x86-64) even if the same amount of
-    // data is actually copied to stack. It saves ~10% on the bloat test.
-    const internal::Value *values_;
-    const internal::Arg *args_;
-  };
-
-  internal::Arg::Type type(unsigned index) const {
-    unsigned shift = index * 4;
-    uint64_t mask = 0xf;
-    return static_cast<internal::Arg::Type>(
-          (types_ & (mask << shift)) >> shift);
-  }
-
-  template <typename Char>
-  friend class internal::ArgMap;
+class ArgList
+{
+private:
+    // To reduce compiled code size per formatting function call, types of first
+    // MAX_PACKED_ARGS arguments are passed in the types_ field.
+    uint64_t types_;
+    union
+    {
+        // If the number of arguments is less than MAX_PACKED_ARGS, the argument
+        // values are stored in values_, otherwise they are stored in args_.
+        // This is done to reduce compiled code size as storing larger objects
+        // may require more code (at least on x86-64) even if the same amount of
+        // data is actually copied to stack. It saves ~10% on the bloat test.
+        const internal::Value *values_;
+        const internal::Arg *args_;
+    };
+
+    internal::Arg::Type type(unsigned index) const
+    {
+        unsigned shift = index * 4;
+        uint64_t mask = 0xf;
+        return static_cast<internal::Arg::Type>(
+                   (types_ & (mask << shift)) >> shift);
+    }
 
- public:
-  // Maximum number of arguments with packed types.
-  enum { MAX_PACKED_ARGS = 16 };
+    template <typename Char>
+    friend class internal::ArgMap;
+
+public:
+    // Maximum number of arguments with packed types.
+    enum { MAX_PACKED_ARGS = 16 };
+
+    ArgList() : types_(0) {}
+
+    ArgList(ULongLong types, const internal::Value *values)
+        : types_(types), values_(values) {}
+    ArgList(ULongLong types, const internal::Arg *args)
+        : types_(types), args_(args) {}
+
+    /** Returns the argument at specified index. */
+    internal::Arg operator[](unsigned index) const
+    {
+        using internal::Arg;
+        Arg arg;
+        bool use_values = type(MAX_PACKED_ARGS - 1) == Arg::NONE;
+        if (index < MAX_PACKED_ARGS)
+        {
+            Arg::Type arg_type = type(index);
+            internal::Value &val = arg;
+            if (arg_type != Arg::NONE)
+                val = use_values ? values_[index] : args_[index];
+            arg.type = arg_type;
+            return arg;
+        }
+        if (use_values)
+        {
+            // The index is greater than the number of arguments that can be stored
+            // in values, so return a "none" argument.
+            arg.type = Arg::NONE;
+            return arg;
+        }
+        for (unsigned i = MAX_PACKED_ARGS; i <= index; ++i)
+        {
+            if (args_[i].type == Arg::NONE)
+                return args_[i];
+        }
+        return args_[index];
+    }
+};
 
-  ArgList() : types_(0) {}
+enum Alignment
+{
+    ALIGN_DEFAULT, ALIGN_LEFT, ALIGN_RIGHT, ALIGN_CENTER, ALIGN_NUMERIC
+};
 
-  ArgList(ULongLong types, const internal::Value *values)
-  : types_(types), values_(values) {}
-  ArgList(ULongLong types, const internal::Arg *args)
-  : types_(types), args_(args) {}
-
-  /** Returns the argument at specified index. */
-  internal::Arg operator[](unsigned index) const {
-    using internal::Arg;
-    Arg arg;
-    bool use_values = type(MAX_PACKED_ARGS - 1) == Arg::NONE;
-    if (index < MAX_PACKED_ARGS) {
-      Arg::Type arg_type = type(index);
-      internal::Value &val = arg;
-      if (arg_type != Arg::NONE)
-        val = use_values ? values_[index] : args_[index];
-      arg.type = arg_type;
-      return arg;
-    }
-    if (use_values) {
-      // The index is greater than the number of arguments that can be stored
-      // in values, so return a "none" argument.
-      arg.type = Arg::NONE;
-      return arg;
-    }
-    for (unsigned i = MAX_PACKED_ARGS; i <= index; ++i) {
-      if (args_[i].type == Arg::NONE)
-        return args_[i];
-    }
-    return args_[index];
-  }
-};
-
-struct FormatSpec;
-
-namespace internal {
-
-template <typename Char>
-class ArgMap {
- private:
-  typedef std::map<fmt::BasicStringRef<Char>, internal::Arg> MapType;
-  typedef typename MapType::value_type Pair;
-
-  MapType map_;
-
- public:
-  void init(const ArgList &args);
-
-  const internal::Arg* find(const fmt::BasicStringRef<Char> &name) const {
-    typename MapType::const_iterator it = map_.find(name);
-    return it != map_.end() ? &it->second : 0;
-  }
-};
-
-class FormatterBase {
- private:
-  ArgList args_;
-  int next_arg_index_;
-
-  // Returns the argument with specified index.
-  Arg do_get_arg(unsigned arg_index, const char *&error);
-
- protected:
-  const ArgList &args() const { return args_; }
-
-  explicit FormatterBase(const ArgList &args) {
-    args_ = args;
-    next_arg_index_ = 0;
-  }
-
-  // Returns the next argument.
-  Arg next_arg(const char *&error);
-
-  // Checks if manual indexing is used and returns the argument with
-  // specified index.
-  Arg get_arg(unsigned arg_index, const char *&error);
-
-  bool check_no_auto_index(const char *&error);
-
-  template <typename Char>
-  void write(BasicWriter<Char> &w, const Char *start, const Char *end) {
-    if (start != end)
-      w << BasicStringRef<Char>(start, end - start);
-  }
-};
-
-// A printf formatter.
-template <typename Char>
-class PrintfFormatter : private FormatterBase {
- private:
-  void parse_flags(FormatSpec &spec, const Char *&s);
-
-  // Returns the argument with specified index or, if arg_index is equal
-  // to the maximum unsigned value, the next argument.
-  Arg get_arg(const Char *s,
-      unsigned arg_index = (std::numeric_limits<unsigned>::max)());
-
-  // Parses argument index, flags and width and returns the argument index.
-  unsigned parse_header(const Char *&s, FormatSpec &spec);
-
- public:
-  explicit PrintfFormatter(const ArgList &args) : FormatterBase(args) {}
-  void format(BasicWriter<Char> &writer, BasicCStringRef<Char> format_str);
-};
-}  // namespace internal
-
-// A formatter.
-template <typename Char>
-class BasicFormatter : private internal::FormatterBase {
- private:
-  BasicWriter<Char> &writer_;
-  internal::ArgMap<Char> map_;
-  
-  FMT_DISALLOW_COPY_AND_ASSIGN(BasicFormatter);
-
-  using FormatterBase::get_arg;
-
-  // Checks if manual indexing is used and returns the argument with
-  // specified name.
-  internal::Arg get_arg(BasicStringRef<Char> arg_name, const char *&error);
-
-  // Parses argument index and returns corresponding argument.
-  internal::Arg parse_arg_index(const Char *&s);
-
-  // Parses argument name and returns corresponding argument.
-  internal::Arg parse_arg_name(const Char *&s);
-
- public:
-  BasicFormatter(const ArgList &args, BasicWriter<Char> &w)
-    : FormatterBase(args), writer_(w) {}
-
-  BasicWriter<Char> &writer() { return writer_; }
-
-  void format(BasicCStringRef<Char> format_str);
-
-  const Char *format(const Char *&format_str, const internal::Arg &arg);
-};
-
-enum Alignment {
-  ALIGN_DEFAULT, ALIGN_LEFT, ALIGN_RIGHT, ALIGN_CENTER, ALIGN_NUMERIC
-};
-
-// Flags.
-enum {
-  SIGN_FLAG = 1, PLUS_FLAG = 2, MINUS_FLAG = 4, HASH_FLAG = 8,
-  CHAR_FLAG = 0x10  // Argument has char type - used in error reporting.
-};
+// Flags.
+enum
+{
+    SIGN_FLAG = 1, PLUS_FLAG = 2, MINUS_FLAG = 4, HASH_FLAG = 8,
+    CHAR_FLAG = 0x10  // Argument has char type - used in error reporting.
+};
 
 // An empty format specifier.
 struct EmptySpec {};
 
 // A type specifier.
 template <char TYPE>
-struct TypeSpec : EmptySpec {
-  Alignment align() const { return ALIGN_DEFAULT; }
-  unsigned width() const { return 0; }
-  int precision() const { return -1; }
-  bool flag(unsigned) const { return false; }
-  char type() const { return TYPE; }
-  char fill() const { return ' '; }
+struct TypeSpec : EmptySpec
+{
+    Alignment align() const
+    {
+        return ALIGN_DEFAULT;
+    }
+    unsigned width() const
+    {
+        return 0;
+    }
+    int precision() const
+    {
+        return -1;
+    }
+    bool flag(unsigned) const
+    {
+        return false;
+    }
+    char type() const
+    {
+        return TYPE;
+    }
+    char fill() const
+    {
+        return ' ';
+    }
 };
 
 // A width specifier.
-struct WidthSpec {
-  unsigned width_;
-  // Fill is always wchar_t and cast to char if necessary to avoid having
-  // two specialization of WidthSpec and its subclasses.
-  wchar_t fill_;
-
-  WidthSpec(unsigned width, wchar_t fill) : width_(width), fill_(fill) {}
-
-  unsigned width() const { return width_; }
-  wchar_t fill() const { return fill_; }
+struct WidthSpec
+{
+    unsigned width_;
+    // Fill is always wchar_t and cast to char if necessary to avoid having
+    // two specialization of WidthSpec and its subclasses.
+    wchar_t fill_;
+
+    WidthSpec(unsigned width, wchar_t fill) : width_(width), fill_(fill) {}
+
+    unsigned width() const
+    {
+        return width_;
+    }
+    wchar_t fill() const
+    {
+        return fill_;
+    }
 };
 
 // An alignment specifier.
-struct AlignSpec : WidthSpec {
-  Alignment align_;
+struct AlignSpec : WidthSpec
+{
+    Alignment align_;
 
-  AlignSpec(unsigned width, wchar_t fill, Alignment align = ALIGN_DEFAULT)
-  : WidthSpec(width, fill), align_(align) {}
+    AlignSpec(unsigned width, wchar_t fill, Alignment align = ALIGN_DEFAULT)
+        : WidthSpec(width, fill), align_(align) {}
 
-  Alignment align() const { return align_; }
+    Alignment align() const
+    {
+        return align_;
+    }
 
-  int precision() const { return -1; }
+    int precision() const
+    {
+        return -1;
+    }
 };
 
 // An alignment and type specifier.
 template <char TYPE>
-struct AlignTypeSpec : AlignSpec {
-  AlignTypeSpec(unsigned width, wchar_t fill) : AlignSpec(width, fill) {}
+struct AlignTypeSpec : AlignSpec
+{
+    AlignTypeSpec(unsigned width, wchar_t fill) : AlignSpec(width, fill) {}
 
-  bool flag(unsigned) const { return false; }
-  char type() const { return TYPE; }
+    bool flag(unsigned) const
+    {
+        return false;
+    }
+    char type() const
+    {
+        return TYPE;
+    }
 };
 
 // A full format specifier.
-struct FormatSpec : AlignSpec {
-  unsigned flags_;
-  int precision_;
-  char type_;
-
-  FormatSpec(
-    unsigned width = 0, char type = 0, wchar_t fill = ' ')
-  : AlignSpec(width, fill), flags_(0), precision_(-1), type_(type) {}
-
-  bool flag(unsigned f) const { return (flags_ & f) != 0; }
-  int precision() const { return precision_; }
-  char type() const { return type_; }
+struct FormatSpec : AlignSpec
+{
+    unsigned flags_;
+    int precision_;
+    char type_;
+
+    FormatSpec(
+        unsigned width = 0, char type = 0, wchar_t fill = ' ')
+        : AlignSpec(width, fill), flags_(0), precision_(-1), type_(type) {}
+
+    bool flag(unsigned f) const
+    {
+        return (flags_ & f) != 0;
+    }
+    int precision() const
+    {
+        return precision_;
+    }
+    char type() const
+    {
+        return type_;
+    }
 };
 
 // An integer format specifier.
 template <typename T, typename SpecT = TypeSpec<0>, typename Char = char>
-class IntFormatSpec : public SpecT {
- private:
-  T value_;
-
- public:
-  IntFormatSpec(T val, const SpecT &spec = SpecT())
-  : SpecT(spec), value_(val) {}
-
-  T value() const { return value_; }
+class IntFormatSpec : public SpecT
+{
+private:
+    T value_;
+
+public:
+    IntFormatSpec(T val, const SpecT &spec = SpecT())
+        : SpecT(spec), value_(val) {}
+
+    T value() const
+    {
+        return value_;
+    }
 };
 
 // A string format specifier.
 template <typename Char>
-class StrFormatSpec : public AlignSpec {
- private:
-  const Char *str_;
-
- public:
-  template <typename FillChar>
-  StrFormatSpec(const Char *str, unsigned width, FillChar fill)
-  : AlignSpec(width, fill), str_(str) {
-    internal::CharTraits<Char>::convert(FillChar());
-  }
+class StrFormatSpec : public AlignSpec
+{
+private:
+    const Char *str_;
+
+public:
+    template <typename FillChar>
+    StrFormatSpec(const Char *str, unsigned width, FillChar fill)
+        : AlignSpec(width, fill), str_(str)
+    {
+        internal::CharTraits<Char>::convert(FillChar());
+    }
 
-  const Char *str() const { return str_; }
+    const Char *str() const
+    {
+        return str_;
+    }
 };
 
 /**
-  Returns an integer format specifier to format the value in base 2.
- */
+Returns an integer format specifier to format the value in base 2.
+*/
 IntFormatSpec<int, TypeSpec<'b'> > bin(int value);
 
 /**
-  Returns an integer format specifier to format the value in base 8.
- */
+Returns an integer format specifier to format the value in base 8.
+*/
 IntFormatSpec<int, TypeSpec<'o'> > oct(int value);
 
 /**
-  Returns an integer format specifier to format the value in base 16 using
-  lower-case letters for the digits above 9.
- */
+Returns an integer format specifier to format the value in base 16 using
+lower-case letters for the digits above 9.
+*/
 IntFormatSpec<int, TypeSpec<'x'> > hex(int value);
 
 /**
-  Returns an integer formatter format specifier to format in base 16 using
-  upper-case letters for the digits above 9.
- */
+Returns an integer formatter format specifier to format in base 16 using
+upper-case letters for the digits above 9.
+*/
 IntFormatSpec<int, TypeSpec<'X'> > hexu(int value);
 
 /**
-  \rst
-  Returns an integer format specifier to pad the formatted argument with the
-  fill character to the specified width using the default (right) numeric
-  alignment.
+\rst
+Returns an integer format specifier to pad the formatted argument with the
+fill character to the specified width using the default (right) numeric
+alignment.
 
-  **Example**::
+**Example**::
 
-    MemoryWriter out;
-    out << pad(hex(0xcafe), 8, '0');
-    // out.str() == "0000cafe"
+MemoryWriter out;
+out << pad(hex(0xcafe), 8, '0');
+// out.str() == "0000cafe"
 
-  \endrst
- */
+\endrst
+*/
 template <char TYPE_CODE, typename Char>
 IntFormatSpec<int, AlignTypeSpec<TYPE_CODE>, Char> pad(
     int value, unsigned width, Char fill = ' ');
@@ -1498,26 +1878,26 @@ IntFormatSpec<int, AlignTypeSpec<TYPE_CODE>, Char> pad(
 #define FMT_DEFINE_INT_FORMATTERS(TYPE) \
 inline IntFormatSpec<TYPE, TypeSpec<'b'> > bin(TYPE value) { \
   return IntFormatSpec<TYPE, TypeSpec<'b'> >(value, TypeSpec<'b'>()); \
-} \
+    } \
  \
 inline IntFormatSpec<TYPE, TypeSpec<'o'> > oct(TYPE value) { \
   return IntFormatSpec<TYPE, TypeSpec<'o'> >(value, TypeSpec<'o'>()); \
-} \
+    } \
  \
 inline IntFormatSpec<TYPE, TypeSpec<'x'> > hex(TYPE value) { \
   return IntFormatSpec<TYPE, TypeSpec<'x'> >(value, TypeSpec<'x'>()); \
-} \
+    } \
  \
 inline IntFormatSpec<TYPE, TypeSpec<'X'> > hexu(TYPE value) { \
   return IntFormatSpec<TYPE, TypeSpec<'X'> >(value, TypeSpec<'X'>()); \
-} \
+    } \
  \
 template <char TYPE_CODE> \
 inline IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE> > pad( \
     IntFormatSpec<TYPE, TypeSpec<TYPE_CODE> > f, unsigned width) { \
   return IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE> >( \
       f.value(), AlignTypeSpec<TYPE_CODE>(width, ' ')); \
-} \
+    } \
  \
 /* For compatibility with older compilers we provide two overloads for pad, */ \
 /* one that takes a fill character and one that doesn't. In the future this */ \
@@ -1529,20 +1909,20 @@ inline IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>, Char> pad( \
     unsigned width, Char fill) { \
   return IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>, Char>( \
       f.value(), AlignTypeSpec<TYPE_CODE>(width, fill)); \
-} \
+    } \
  \
 inline IntFormatSpec<TYPE, AlignTypeSpec<0> > pad( \
     TYPE value, unsigned width) { \
   return IntFormatSpec<TYPE, AlignTypeSpec<0> >( \
       value, AlignTypeSpec<0>(width, ' ')); \
-} \
+    } \
  \
 template <typename Char> \
 inline IntFormatSpec<TYPE, AlignTypeSpec<0>, Char> pad( \
    TYPE value, unsigned width, Char fill) { \
  return IntFormatSpec<TYPE, AlignTypeSpec<0>, Char>( \
      value, AlignTypeSpec<0>(width, fill)); \
-}
+    }
 
 FMT_DEFINE_INT_FORMATTERS(int)
 FMT_DEFINE_INT_FORMATTERS(long)
@@ -1552,28 +1932,318 @@ FMT_DEFINE_INT_FORMATTERS(LongLong)
 FMT_DEFINE_INT_FORMATTERS(ULongLong)
 
 /**
-  \rst
-  Returns a string formatter that pads the formatted argument with the fill
-  character to the specified width using the default (left) string alignment.
+\rst
+Returns a string formatter that pads the formatted argument with the fill
+character to the specified width using the default (left) string alignment.
 
-  **Example**::
+**Example**::
 
-    std::string s = str(MemoryWriter() << pad("abc", 8));
-    // s == "abc     "
+std::string s = str(MemoryWriter() << pad("abc", 8));
+// s == "abc     "
 
-  \endrst
- */
+\endrst
+*/
 template <typename Char>
 inline StrFormatSpec<Char> pad(
-    const Char *str, unsigned width, Char fill = ' ') {
-  return StrFormatSpec<Char>(str, width, fill);
+    const Char *str, unsigned width, Char fill = ' ')
+{
+    return StrFormatSpec<Char>(str, width, fill);
 }
 
 inline StrFormatSpec<wchar_t> pad(
-    const wchar_t *str, unsigned width, char fill = ' ') {
-  return StrFormatSpec<wchar_t>(str, width, fill);
+    const wchar_t *str, unsigned width, char fill = ' ')
+{
+    return StrFormatSpec<wchar_t>(str, width, fill);
 }
 
+namespace internal
+{
+
+template <typename Char>
+class ArgMap
+{
+private:
+    typedef std::map<fmt::BasicStringRef<Char>, internal::Arg> MapType;
+    typedef typename MapType::value_type Pair;
+
+    MapType map_;
+
+public:
+    FMT_API void init(const ArgList &args);
+
+    const internal::Arg* find(const fmt::BasicStringRef<Char> &name) const
+    {
+        typename MapType::const_iterator it = map_.find(name);
+        return it != map_.end() ? &it->second : 0;
+    }
+};
+
+template <typename Impl, typename Char>
+class ArgFormatterBase : public ArgVisitor<Impl, void>
+{
+private:
+    BasicWriter<Char> &writer_;
+    FormatSpec &spec_;
+
+    FMT_DISALLOW_COPY_AND_ASSIGN(ArgFormatterBase);
+
+    void write_pointer(const void *p)
+    {
+        spec_.flags_ = HASH_FLAG;
+        spec_.type_ = 'x';
+        writer_.write_int(reinterpret_cast<uintptr_t>(p), spec_);
+    }
+
+protected:
+    BasicWriter<Char> &writer()
+    {
+        return writer_;
+    }
+    FormatSpec &spec()
+    {
+        return spec_;
+    }
+
+    void write(bool value)
+    {
+        const char *str_value = value ? "true" : "false";
+        Arg::StringValue<char> str = { str_value, std::strlen(str_value) };
+        writer_.write_str(str, spec_);
+    }
+
+    void write(const char *value)
+    {
+        Arg::StringValue<char> str = { value, value != 0 ? std::strlen(value) : 0 };
+        writer_.write_str(str, spec_);
+    }
+
+public:
+    ArgFormatterBase(BasicWriter<Char> &w, FormatSpec &s)
+        : writer_(w), spec_(s) {}
+
+    template <typename T>
+    void visit_any_int(T value)
+    {
+        writer_.write_int(value, spec_);
+    }
+
+    template <typename T>
+    void visit_any_double(T value)
+    {
+        writer_.write_double(value, spec_);
+    }
+
+    void visit_bool(bool value)
+    {
+        if (spec_.type_)
+            return visit_any_int(value);
+        write(value);
+    }
+
+    void visit_char(int value)
+    {
+        if (spec_.type_ && spec_.type_ != 'c')
+        {
+            spec_.flags_ |= CHAR_FLAG;
+            writer_.write_int(value, spec_);
+            return;
+        }
+        if (spec_.align_ == ALIGN_NUMERIC || spec_.flags_ != 0)
+            FMT_THROW(FormatError("invalid format specifier for char"));
+        typedef typename BasicWriter<Char>::CharPtr CharPtr;
+        Char fill = internal::CharTraits<Char>::cast(spec_.fill());
+        CharPtr out = CharPtr();
+        const unsigned CHAR_WIDTH = 1;
+        if (spec_.width_ > CHAR_WIDTH)
+        {
+            out = writer_.grow_buffer(spec_.width_);
+            if (spec_.align_ == ALIGN_RIGHT)
+            {
+                std::uninitialized_fill_n(out, spec_.width_ - CHAR_WIDTH, fill);
+                out += spec_.width_ - CHAR_WIDTH;
+            }
+            else if (spec_.align_ == ALIGN_CENTER)
+            {
+                out = writer_.fill_padding(out, spec_.width_,
+                                           internal::check(CHAR_WIDTH), fill);
+            }
+            else
+            {
+                std::uninitialized_fill_n(out + CHAR_WIDTH,
+                                          spec_.width_ - CHAR_WIDTH, fill);
+            }
+        }
+        else
+        {
+            out = writer_.grow_buffer(CHAR_WIDTH);
+        }
+        *out = internal::CharTraits<Char>::cast(value);
+    }
+
+    void visit_cstring(const char *value)
+    {
+        if (spec_.type_ == 'p')
+            return write_pointer(value);
+        write(value);
+    }
+
+    void visit_string(Arg::StringValue<char> value)
+    {
+        writer_.write_str(value, spec_);
+    }
+
+    using ArgVisitor<Impl, void>::visit_wstring;
+
+    void visit_wstring(Arg::StringValue<Char> value)
+    {
+        writer_.write_str(value, spec_);
+    }
+
+    void visit_pointer(const void *value)
+    {
+        if (spec_.type_ && spec_.type_ != 'p')
+            report_unknown_type(spec_.type_, "pointer");
+        write_pointer(value);
+    }
+};
+
+// An argument formatter.
+template <typename Char>
+class BasicArgFormatter :
+    public ArgFormatterBase<BasicArgFormatter<Char>, Char>
+{
+private:
+    BasicFormatter<Char> &formatter_;
+    const Char *format_;
+
+public:
+    BasicArgFormatter(BasicFormatter<Char> &f, FormatSpec &s, const Char *fmt)
+        : ArgFormatterBase<BasicArgFormatter<Char>, Char>(f.writer(), s),
+          formatter_(f), format_(fmt) {}
+
+    void visit_custom(Arg::CustomValue c)
+    {
+        c.format(&formatter_, c.value, &format_);
+    }
+};
+
+class FormatterBase
+{
+private:
+    ArgList args_;
+    int next_arg_index_;
+
+    // Returns the argument with specified index.
+    FMT_API Arg do_get_arg(unsigned arg_index, const char *&error);
+
+protected:
+    const ArgList &args() const
+    {
+        return args_;
+    }
+
+    explicit FormatterBase(const ArgList &args)
+    {
+        args_ = args;
+        next_arg_index_ = 0;
+    }
+
+    // Returns the next argument.
+    Arg next_arg(const char *&error)
+    {
+        if (next_arg_index_ >= 0)
+            return do_get_arg(next_arg_index_++, error);
+        error = "cannot switch from manual to automatic argument indexing";
+        return Arg();
+    }
+
+    // Checks if manual indexing is used and returns the argument with
+    // specified index.
+    Arg get_arg(unsigned arg_index, const char *&error)
+    {
+        return check_no_auto_index(error) ? do_get_arg(arg_index, error) : Arg();
+    }
+
+    bool check_no_auto_index(const char *&error)
+    {
+        if (next_arg_index_ > 0)
+        {
+            error = "cannot switch from automatic to manual argument indexing";
+            return false;
+        }
+        next_arg_index_ = -1;
+        return true;
+    }
+
+    template <typename Char>
+    void write(BasicWriter<Char> &w, const Char *start, const Char *end)
+    {
+        if (start != end)
+            w << BasicStringRef<Char>(start, end - start);
+    }
+};
+
+// A printf formatter.
+template <typename Char>
+class PrintfFormatter : private FormatterBase
+{
+private:
+    void parse_flags(FormatSpec &spec, const Char *&s);
+
+    // Returns the argument with specified index or, if arg_index is equal
+    // to the maximum unsigned value, the next argument.
+    Arg get_arg(const Char *s,
+                unsigned arg_index = (std::numeric_limits<unsigned>::max)());
+
+    // Parses argument index, flags and width and returns the argument index.
+    unsigned parse_header(const Char *&s, FormatSpec &spec);
+
+public:
+    explicit PrintfFormatter(const ArgList &args) : FormatterBase(args) {}
+    FMT_API void format(BasicWriter<Char> &writer,
+                        BasicCStringRef<Char> format_str);
+};
+}  // namespace internal
+
+// A formatter.
+template <typename CharType>
+class BasicFormatter : private internal::FormatterBase
+{
+public:
+    typedef CharType Char;
+
+private:
+    BasicWriter<Char> &writer_;
+    internal::ArgMap<Char> map_;
+
+    FMT_DISALLOW_COPY_AND_ASSIGN(BasicFormatter);
+
+    using internal::FormatterBase::get_arg;
+
+    // Checks if manual indexing is used and returns the argument with
+    // specified name.
+    internal::Arg get_arg(BasicStringRef<Char> arg_name, const char *&error);
+
+    // Parses argument index and returns corresponding argument.
+    internal::Arg parse_arg_index(const Char *&s);
+
+    // Parses argument name and returns corresponding argument.
+    internal::Arg parse_arg_name(const Char *&s);
+
+public:
+    BasicFormatter(const ArgList &args, BasicWriter<Char> &w)
+        : internal::FormatterBase(args), writer_(w) {}
+
+    BasicWriter<Char> &writer()
+    {
+        return writer_;
+    }
+
+    void format(BasicCStringRef<Char> format_str);
+
+    const Char *format(const Char *&format_str, const internal::Arg &arg);
+};
+
 // Generates a comma-separated list with results of applying f to
 // numbers 0..n-1.
 # define FMT_GEN(n, f) FMT_GEN##n(f)
@@ -1593,97 +2263,153 @@ inline StrFormatSpec<wchar_t> pad(
 # define FMT_GEN14(f) FMT_GEN13(f), f(13)
 # define FMT_GEN15(f) FMT_GEN14(f), f(14)
 
-namespace internal {
-inline uint64_t make_type() { return 0; }
+namespace internal
+{
+inline uint64_t make_type()
+{
+    return 0;
+}
 
 template <typename T>
-inline uint64_t make_type(const T &arg) { return MakeValue<char>::type(arg); }
+inline uint64_t make_type(const T &arg)
+{
+    return MakeValue< BasicFormatter<char> >::type(arg);
+}
 
 template <unsigned N>
-struct ArgArray {
-  // Computes the argument array size by adding 1 to N, which is the number of
-  // arguments, if N is zero, because array of zero size is invalid, or if N
-  // is greater than ArgList::MAX_PACKED_ARGS to accommodate for an extra
-  // argument that marks the end of the list.
-  enum { SIZE = N + (N == 0 || N >= ArgList::MAX_PACKED_ARGS ? 1 : 0) };
-
-  typedef typename Conditional<
+struct ArgArray
+{
+    // Computes the argument array size by adding 1 to N, which is the number of
+    // arguments, if N is zero, because array of zero size is invalid, or if N
+    // is greater than ArgList::MAX_PACKED_ARGS to accommodate for an extra
+    // argument that marks the end of the list.
+    enum { SIZE = N + (N == 0 || N >= ArgList::MAX_PACKED_ARGS ? 1 : 0) };
+
+    typedef typename Conditional<
     (N < ArgList::MAX_PACKED_ARGS), Value, Arg>::type Type[SIZE];
 };
 
 #if FMT_USE_VARIADIC_TEMPLATES
 template <typename Arg, typename... Args>
-inline uint64_t make_type(const Arg &first, const Args & ... tail) {
-  return make_type(first) | (make_type(tail...) << 4);
+inline uint64_t make_type(const Arg &first, const Args & ... tail)
+{
+    return make_type(first) | (make_type(tail...) << 4);
 }
 
 inline void do_set_types(Arg *) {}
 
 template <typename T, typename... Args>
-inline void do_set_types(Arg *args, const T &arg, const Args & ... tail) {
-  args->type = static_cast<Arg::Type>(MakeValue<T>::type(arg));
-  do_set_types(args + 1, tail...);
+inline void do_set_types(Arg *args, const T &arg, const Args & ... tail)
+{
+    args->type = static_cast<Arg::Type>(
+                     MakeValue< BasicFormatter<char> >::type(arg));
+    do_set_types(args + 1, tail...);
 }
 
 template <typename... Args>
-inline void set_types(Arg *array, const Args & ... args) {
-  if (check(sizeof...(Args) > ArgList::MAX_PACKED_ARGS))
-    do_set_types(array, args...);
-  array[sizeof...(Args)].type = Arg::NONE;
+inline void set_types(Arg *array, const Args & ... args)
+{
+    if (check(sizeof...(Args) > ArgList::MAX_PACKED_ARGS))
+        do_set_types(array, args...);
+    array[sizeof...(Args)].type = Arg::NONE;
 }
 
 template <typename... Args>
-inline void set_types(Value *, const Args & ...) {
-  // Do nothing as types are passed separately from values.
+inline void set_types(Value *, const Args & ...)
+{
+    // Do nothing as types are passed separately from values.
 }
 
-template <typename Char, typename Value>
+template <typename Formatter, typename Value>
 inline void store_args(Value *) {}
 
-template <typename Char, typename Arg, typename T, typename... Args>
-inline void store_args(Arg *args, const T &arg, const Args & ... tail) {
-  // Assign only the Value subobject of Arg and don't overwrite type (if any)
-  // that is assigned by set_types.
-  Value &value = *args;
-  value = MakeValue<Char>(arg);
-  store_args<Char>(args + 1, tail...);
+template <typename Formatter, typename Arg, typename T, typename... Args>
+inline void store_args(Arg *args, const T &arg, const Args & ... tail)
+{
+    // Assign only the Value subobject of Arg and don't overwrite type (if any)
+    // that is assigned by set_types.
+    Value &value = *args;
+    value = MakeValue<Formatter>(arg);
+    store_args<Formatter>(args + 1, tail...);
 }
 
-template <typename Char, typename... Args>
+template <typename Formatter, typename... Args>
 ArgList make_arg_list(typename ArgArray<sizeof...(Args)>::Type array,
-                      const Args & ... args) {
-  if (check(sizeof...(Args) >= ArgList::MAX_PACKED_ARGS))
-    set_types(array, args...);
-  store_args<Char>(array, args...);
-  return ArgList(make_type(args...), array);
+                      const Args & ... args)
+{
+    if (check(sizeof...(Args) >= ArgList::MAX_PACKED_ARGS))
+        set_types(array, args...);
+    store_args<Formatter>(array, args...);
+    return ArgList(make_type(args...), array);
 }
 #else
 
-struct ArgType {
-  uint64_t type;
+struct ArgType
+{
+    uint64_t type;
 
-  ArgType() : type(0) {}
+    ArgType() : type(0) {}
 
-  template <typename T>
-  ArgType(const T &arg) : type(make_type(arg)) {}
+    template <typename T>
+    ArgType(const T &arg) : type(make_type(arg)) {}
 };
 
 # define FMT_ARG_TYPE_DEFAULT(n) ArgType t##n = ArgType()
 
-inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT)) {
-  return t0.type | (t1.type << 4) | (t2.type << 8) | (t3.type << 12) |
-      (t4.type << 16) | (t5.type << 20) | (t6.type << 24) | (t7.type << 28) |
-      (t8.type << 32) | (t9.type << 36) | (t10.type << 40) | (t11.type << 44) |
-      (t12.type << 48) | (t13.type << 52) | (t14.type << 56);
+inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT))
+{
+    return t0.type | (t1.type << 4) | (t2.type << 8) | (t3.type << 12) |
+           (t4.type << 16) | (t5.type << 20) | (t6.type << 24) | (t7.type << 28) |
+           (t8.type << 32) | (t9.type << 36) | (t10.type << 40) | (t11.type << 44) |
+           (t12.type << 48) | (t13.type << 52) | (t14.type << 56);
 }
 #endif
+
+template <class Char>
+class FormatBuf : public std::basic_streambuf<Char>
+{
+private:
+    typedef typename std::basic_streambuf<Char>::int_type int_type;
+    typedef typename std::basic_streambuf<Char>::traits_type traits_type;
+
+    Buffer<Char> &buffer_;
+    Char *start_;
+
+public:
+    FormatBuf(Buffer<Char> &buffer) : buffer_(buffer), start_(&buffer[0])
+    {
+        this->setp(start_, start_ + buffer_.capacity());
+    }
+
+    int_type overflow(int_type ch = traits_type::eof())
+    {
+        if (!traits_type::eq_int_type(ch, traits_type::eof()))
+        {
+            size_t size = this->pptr() - start_;
+            buffer_.resize(size);
+            buffer_.reserve(size * 2);
+
+            start_ = &buffer_[0];
+            start_[size] = traits_type::to_char_type(ch);
+            this->setp(start_ + size + 1, start_ + size * 2);
+        }
+        return ch;
+    }
+
+    size_t size() const
+    {
+        return this->pptr() - start_;
+    }
+};
 }  // namespace internal
 
 # define FMT_MAKE_TEMPLATE_ARG(n) typename T##n
 # define FMT_MAKE_ARG_TYPE(n) T##n
 # define FMT_MAKE_ARG(n) const T##n &v##n
-# define FMT_MAKE_REF_char(n) fmt::internal::MakeValue<char>(v##n)
-# define FMT_MAKE_REF_wchar_t(n) fmt::internal::MakeValue<wchar_t>(v##n)
+# define FMT_ASSIGN_char(n) \
+  arr[n] = fmt::internal::MakeValue< fmt::BasicFormatter<char> >(v##n)
+# define FMT_ASSIGN_wchar_t(n) \
+  arr[n] = fmt::internal::MakeValue< fmt::BasicFormatter<wchar_t> >(v##n)
 
 #if FMT_USE_VARIADIC_TEMPLATES
 // Defines a variadic function returning void.
@@ -1691,20 +2417,23 @@ inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT)) {
   template <typename... Args> \
   void func(arg_type arg0, const Args & ... args) { \
     typename fmt::internal::ArgArray<sizeof...(Args)>::Type array; \
-    func(arg0, fmt::internal::make_arg_list<Char>(array, args...)); \
-  }
+    func(arg0, fmt::internal::make_arg_list< \
+      fmt::BasicFormatter<Char> >(array, args...)); \
+      }
 
 // Defines a variadic constructor.
 # define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \
   template <typename... Args> \
   ctor(arg0_type arg0, arg1_type arg1, const Args & ... args) { \
     typename fmt::internal::ArgArray<sizeof...(Args)>::Type array; \
-    func(arg0, arg1, fmt::internal::make_arg_list<Char>(array, args...)); \
-  }
+    func(arg0, arg1, fmt::internal::make_arg_list< \
+      fmt::BasicFormatter<Char> >(array, args...)); \
+      }
 
 #else
 
-# define FMT_MAKE_REF(n) fmt::internal::MakeValue<Char>(v##n)
+# define FMT_MAKE_REF(n) \
+  fmt::internal::MakeValue< fmt::BasicFormatter<Char> >(v##n)
 # define FMT_MAKE_REF2(n) v##n
 
 // Defines a wrapper for a function taking one argument of type arg_type
@@ -1715,7 +2444,7 @@ inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT)) {
     const fmt::internal::ArgArray<n>::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \
     func(arg1, fmt::ArgList( \
       fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \
-  }
+      }
 
 // Emulates a variadic function returning void on a pre-C++11 compiler.
 # define FMT_VARIADIC_VOID(func, arg_type) \
@@ -1732,7 +2461,7 @@ inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT)) {
     const fmt::internal::ArgArray<n>::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \
     func(arg0, arg1, fmt::ArgList( \
       fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \
-  }
+      }
 
 // Emulates a variadic constructor on a pre-C++11 compiler.
 # define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \
@@ -1771,740 +2500,889 @@ inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT)) {
   FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8), f(x9, 9)
 
 /**
- An error returned by an operating system or a language runtime,
- for example a file opening error.
+An error returned by an operating system or a language runtime,
+for example a file opening error.
 */
-class SystemError : public internal::RuntimeError {
- private:
-  void init(int err_code, CStringRef format_str, ArgList args);
-
- protected:
-  int error_code_;
-
-  typedef char Char;  // For FMT_VARIADIC_CTOR.
-
-  SystemError() {}
-
- public:
-  /**
-   \rst
-   Constructs a :class:`fmt::SystemError` object with the description
-   of the form
-
-   .. parsed-literal::
-     *<message>*: *<system-message>*
-
-   where *<message>* is the formatted message and *<system-message>* is
-   the system message corresponding to the error code.
-   *error_code* is a system error code as given by ``errno``.
-   If *error_code* is not a valid error code such as -1, the system message
-   may look like "Unknown error -1" and is platform-dependent.
-   
-   **Example**::
-
-     // This throws a SystemError with the description
-     //   cannot open file 'madeup': No such file or directory
-     // or similar (system message may vary).
-     const char *filename = "madeup";
-     std::FILE *file = std::fopen(filename, "r");
-     if (!file)
-       throw fmt::SystemError(errno, "cannot open file '{}'", filename);
-   \endrst
-  */
-  SystemError(int error_code, CStringRef message) {
-    init(error_code, message, ArgList());
-  }
-  FMT_VARIADIC_CTOR(SystemError, init, int, CStringRef)
+class SystemError : public internal::RuntimeError
+{
+private:
+    void init(int err_code, CStringRef format_str, ArgList args);
+
+protected:
+    int error_code_;
+
+    typedef char Char;  // For FMT_VARIADIC_CTOR.
+
+    SystemError() {}
 
-  int error_code() const { return error_code_; }
+public:
+    /**
+    \rst
+    Constructs a :class:`fmt::SystemError` object with the description
+    of the form
+
+    .. parsed-literal::
+    *<message>*: *<system-message>*
+
+    where *<message>* is the formatted message and *<system-message>* is
+    the system message corresponding to the error code.
+    *error_code* is a system error code as given by ``errno``.
+    If *error_code* is not a valid error code such as -1, the system message
+    may look like "Unknown error -1" and is platform-dependent.
+
+    **Example**::
+
+    // This throws a SystemError with the description
+    //   cannot open file 'madeup': No such file or directory
+    // or similar (system message may vary).
+    const char *filename = "madeup";
+    std::FILE *file = std::fopen(filename, "r");
+    if (!file)
+    throw fmt::SystemError(errno, "cannot open file '{}'", filename);
+    \endrst
+    */
+    SystemError(int error_code, CStringRef message)
+    {
+        init(error_code, message, ArgList());
+    }
+    FMT_VARIADIC_CTOR(SystemError, init, int, CStringRef)
+
+    int error_code() const
+    {
+        return error_code_;
+    }
 };
 
 /**
-  \rst
-  This template provides operations for formatting and writing data into
-  a character stream. The output is stored in a buffer provided by a subclass
-  such as :class:`fmt::BasicMemoryWriter`.
-
-  You can use one of the following typedefs for common character types:
-
-  +---------+----------------------+
-  | Type    | Definition           |
-  +=========+======================+
-  | Writer  | BasicWriter<char>    |
-  +---------+----------------------+
-  | WWriter | BasicWriter<wchar_t> |
-  +---------+----------------------+
-
-  \endrst
- */
+\rst
+This template provides operations for formatting and writing data into
+a character stream. The output is stored in a buffer provided by a subclass
+such as :class:`fmt::BasicMemoryWriter`.
+
+You can use one of the following typedefs for common character types:
+
++---------+----------------------+
+| Type    | Definition           |
++=========+======================+
+| Writer  | BasicWriter<char>    |
++---------+----------------------+
+| WWriter | BasicWriter<wchar_t> |
++---------+----------------------+
+
+\endrst
+*/
 template <typename Char>
-class BasicWriter {
- private:
-  // Output buffer.
-  Buffer<Char> &buffer_;
+class BasicWriter
+{
+private:
+    // Output buffer.
+    Buffer<Char> &buffer_;
 
-  FMT_DISALLOW_COPY_AND_ASSIGN(BasicWriter);
+    FMT_DISALLOW_COPY_AND_ASSIGN(BasicWriter);
 
-  typedef typename internal::CharTraits<Char>::CharPtr CharPtr;
+    typedef typename internal::CharTraits<Char>::CharPtr CharPtr;
 
-#if _SECURE_SCL
-  // Returns pointer value.
-  static Char *get(CharPtr p) { return p.base(); }
+#if FMT_SECURE_SCL
+    // Returns pointer value.
+    static Char *get(CharPtr p)
+    {
+        return p.base();
+    }
 #else
-  static Char *get(Char *p) { return p; }
+    static Char *get(Char *p)
+    {
+        return p;
+    }
 #endif
 
-  // Fills the padding around the content and returns the pointer to the
-  // content area.
-  static CharPtr fill_padding(CharPtr buffer,
-      unsigned total_size, std::size_t content_size, wchar_t fill);
-
-  // Grows the buffer by n characters and returns a pointer to the newly
-  // allocated area.
-  CharPtr grow_buffer(std::size_t n) {
-    std::size_t size = buffer_.size();
-    buffer_.resize(size + n);
-    return internal::make_ptr(&buffer_[size], n);
-  }
+    // Fills the padding around the content and returns the pointer to the
+    // content area.
+    static CharPtr fill_padding(CharPtr buffer,
+                                unsigned total_size, std::size_t content_size, wchar_t fill);
+
+    // Grows the buffer by n characters and returns a pointer to the newly
+    // allocated area.
+    CharPtr grow_buffer(std::size_t n)
+    {
+        std::size_t size = buffer_.size();
+        buffer_.resize(size + n);
+        return internal::make_ptr(&buffer_[size], n);
+    }
 
-  // Writes an unsigned decimal integer.
-  template <typename UInt>
-  Char *write_unsigned_decimal(UInt value, unsigned prefix_size = 0) {
-    unsigned num_digits = internal::count_digits(value);
-    Char *ptr = get(grow_buffer(prefix_size + num_digits));
-    internal::format_decimal(ptr + prefix_size, value, num_digits);
-    return ptr;
-  }
+    // Writes an unsigned decimal integer.
+    template <typename UInt>
+    Char *write_unsigned_decimal(UInt value, unsigned prefix_size = 0)
+    {
+        unsigned num_digits = internal::count_digits(value);
+        Char *ptr = get(grow_buffer(prefix_size + num_digits));
+        internal::format_decimal(ptr + prefix_size, value, num_digits);
+        return ptr;
+    }
 
-  // Writes a decimal integer.
-  template <typename Int>
-  void write_decimal(Int value) {
-    typename internal::IntTraits<Int>::MainType abs_value = value;
-    if (internal::is_negative(value)) {
-      abs_value = 0 - abs_value;
-      *write_unsigned_decimal(abs_value, 1) = '-';
-    } else {
-      write_unsigned_decimal(abs_value, 0);
+    // Writes a decimal integer.
+    template <typename Int>
+    void write_decimal(Int value)
+    {
+        typename internal::IntTraits<Int>::MainType abs_value = value;
+        if (internal::is_negative(value))
+        {
+            abs_value = 0 - abs_value;
+            *write_unsigned_decimal(abs_value, 1) = '-';
+        }
+        else
+        {
+            write_unsigned_decimal(abs_value, 0);
+        }
     }
-  }
 
-  // Prepare a buffer for integer formatting.
-  CharPtr prepare_int_buffer(unsigned num_digits,
-      const EmptySpec &, const char *prefix, unsigned prefix_size) {
-    unsigned size = prefix_size + num_digits;
-    CharPtr p = grow_buffer(size);
-    std::copy(prefix, prefix + prefix_size, p);
-    return p + size - 1;
-  }
+    // Prepare a buffer for integer formatting.
+    CharPtr prepare_int_buffer(unsigned num_digits,
+                               const EmptySpec &, const char *prefix, unsigned prefix_size)
+    {
+        unsigned size = prefix_size + num_digits;
+        CharPtr p = grow_buffer(size);
+        std::uninitialized_copy(prefix, prefix + prefix_size, p);
+        return p + size - 1;
+    }
 
-  template <typename Spec>
-  CharPtr prepare_int_buffer(unsigned num_digits,
-    const Spec &spec, const char *prefix, unsigned prefix_size);
-
-  // Formats an integer.
-  template <typename T, typename Spec>
-  void write_int(T value, Spec spec);
-
-  // Formats a floating-point number (double or long double).
-  template <typename T>
-  void write_double(T value, const FormatSpec &spec);
-
-  // Writes a formatted string.
-  template <typename StrChar>
-  CharPtr write_str(
-      const StrChar *s, std::size_t size, const AlignSpec &spec);
-
-  template <typename StrChar>
-  void write_str(
-      const internal::Arg::StringValue<StrChar> &str, const FormatSpec &spec);
-
-  // This following methods are private to disallow writing wide characters
-  // and strings to a char stream. If you want to print a wide string as a
-  // pointer as std::ostream does, cast it to const void*.
-  // Do not implement!
-  void operator<<(typename internal::WCharHelper<wchar_t, Char>::Unsupported);
-  void operator<<(
-      typename internal::WCharHelper<const wchar_t *, Char>::Unsupported);
-
-  // Appends floating-point length specifier to the format string.
-  // The second argument is only used for overload resolution.
-  void append_float_length(Char *&format_ptr, long double) {
-    *format_ptr++ = 'L';
-  }
+    template <typename Spec>
+    CharPtr prepare_int_buffer(unsigned num_digits,
+                               const Spec &spec, const char *prefix, unsigned prefix_size);
+
+    // Formats an integer.
+    template <typename T, typename Spec>
+    void write_int(T value, Spec spec);
+
+    // Formats a floating-point number (double or long double).
+    template <typename T>
+    void write_double(T value, const FormatSpec &spec);
+
+    // Writes a formatted string.
+    template <typename StrChar>
+    CharPtr write_str(const StrChar *s, std::size_t size, const AlignSpec &spec);
+
+    template <typename StrChar>
+    void write_str(const internal::Arg::StringValue<StrChar> &str,
+                   const FormatSpec &spec);
+
+    // This following methods are private to disallow writing wide characters
+    // and strings to a char stream. If you want to print a wide string as a
+    // pointer as std::ostream does, cast it to const void*.
+    // Do not implement!
+    void operator<<(typename internal::WCharHelper<wchar_t, Char>::Unsupported);
+    void operator<<(
+        typename internal::WCharHelper<const wchar_t *, Char>::Unsupported);
+
+    // Appends floating-point length specifier to the format string.
+    // The second argument is only used for overload resolution.
+    void append_float_length(Char *&format_ptr, long double)
+    {
+        *format_ptr++ = 'L';
+    }
 
-  template<typename T>
-  void append_float_length(Char *&, T) {}
+    template<typename T>
+    void append_float_length(Char *&, T) {}
 
-  template <typename Impl, typename Char_>
-  friend class internal::BasicArgFormatter;
+    template <typename Impl, typename Char_>
+    friend class internal::ArgFormatterBase;
 
-  friend class internal::PrintfArgFormatter<Char>;
+    friend class internal::PrintfArgFormatter<Char>;
 
- protected:
-  /**
+protected:
+    /**
     Constructs a ``BasicWriter`` object.
-   */
-  explicit BasicWriter(Buffer<Char> &b) : buffer_(b) {}
+    */
+    explicit BasicWriter(Buffer<Char> &b) : buffer_(b) {}
 
- public:
-  /**
+public:
+    /**
     \rst
     Destroys a ``BasicWriter`` object.
     \endrst
-   */
-  virtual ~BasicWriter() {}
+    */
+    virtual ~BasicWriter() {}
 
-  /**
+    /**
     Returns the total number of characters written.
-   */
-  std::size_t size() const { return buffer_.size(); }
+    */
+    std::size_t size() const
+    {
+        return buffer_.size();
+    }
 
-  /**
+    /**
     Returns a pointer to the output buffer content. No terminating null
     character is appended.
-   */
-  const Char *data() const FMT_NOEXCEPT { return &buffer_[0]; }
+    */
+    const Char *data() const FMT_NOEXCEPT
+    {
+        return &buffer_[0];
+    }
 
-  /**
+    /**
     Returns a pointer to the output buffer content with terminating null
     character appended.
-   */
-  const Char *c_str() const {
-    std::size_t size = buffer_.size();
-    buffer_.reserve(size + 1);
-    buffer_[size] = '\0';
-    return &buffer_[0];
-  }
+    */
+    const Char *c_str() const
+    {
+        std::size_t size = buffer_.size();
+        buffer_.reserve(size + 1);
+        buffer_[size] = '\0';
+        return &buffer_[0];
+    }
 
-  /**
+    /**
     \rst
     Returns the content of the output buffer as an `std::string`.
     \endrst
-   */
-  std::basic_string<Char> str() const {
-    return std::basic_string<Char>(&buffer_[0], buffer_.size());
-  }
+    */
+    std::basic_string<Char> str() const
+    {
+        return std::basic_string<Char>(&buffer_[0], buffer_.size());
+    }
 
-  /**
+    /**
     \rst
     Writes formatted data.
-    
+
     *args* is an argument list representing arbitrary arguments.
 
     **Example**::
 
-       MemoryWriter out;
-       out.write("Current point:\n");
-       out.write("({:+f}, {:+f})", -3.14, 3.14);
+    MemoryWriter out;
+    out.write("Current point:\n");
+    out.write("({:+f}, {:+f})", -3.14, 3.14);
 
     This will write the following output to the ``out`` object:
 
     .. code-block:: none
 
-       Current point:
-       (-3.140000, +3.140000)
+    Current point:
+    (-3.140000, +3.140000)
 
     The output can be accessed using :func:`data()`, :func:`c_str` or
     :func:`str` methods.
 
     See also :ref:`syntax`.
     \endrst
-   */
-  void write(BasicCStringRef<Char> format, ArgList args) {
-    BasicFormatter<Char>(args, *this).format(format);
-  }
-  FMT_VARIADIC_VOID(write, BasicCStringRef<Char>)
+    */
+    void write(BasicCStringRef<Char> format, ArgList args)
+    {
+        BasicFormatter<Char>(args, *this).format(format);
+    }
+    FMT_VARIADIC_VOID(write, BasicCStringRef<Char>)
 
-  BasicWriter &operator<<(int value) {
-    write_decimal(value);
-    return *this;
-  }
-  BasicWriter &operator<<(unsigned value) {
-    return *this << IntFormatSpec<unsigned>(value);
-  }
-  BasicWriter &operator<<(long value) {
-    write_decimal(value);
-    return *this;
-  }
-  BasicWriter &operator<<(unsigned long value) {
-    return *this << IntFormatSpec<unsigned long>(value);
-  }
-  BasicWriter &operator<<(LongLong value) {
-    write_decimal(value);
-    return *this;
-  }
+    BasicWriter &operator<<(int value)
+    {
+        write_decimal(value);
+        return *this;
+    }
+    BasicWriter &operator<<(unsigned value)
+    {
+        return *this << IntFormatSpec<unsigned>(value);
+    }
+    BasicWriter &operator<<(long value)
+    {
+        write_decimal(value);
+        return *this;
+    }
+    BasicWriter &operator<<(unsigned long value)
+    {
+        return *this << IntFormatSpec<unsigned long>(value);
+    }
+    BasicWriter &operator<<(LongLong value)
+    {
+        write_decimal(value);
+        return *this;
+    }
 
-  /**
+    /**
     \rst
     Formats *value* and writes it to the stream.
     \endrst
-   */
-  BasicWriter &operator<<(ULongLong value) {
-    return *this << IntFormatSpec<ULongLong>(value);
-  }
+    */
+    BasicWriter &operator<<(ULongLong value)
+    {
+        return *this << IntFormatSpec<ULongLong>(value);
+    }
 
-  BasicWriter &operator<<(double value) {
-    write_double(value, FormatSpec());
-    return *this;
-  }
+    BasicWriter &operator<<(double value)
+    {
+        write_double(value, FormatSpec());
+        return *this;
+    }
 
-  /**
+    /**
     \rst
     Formats *value* using the general format for floating-point numbers
     (``'g'``) and writes it to the stream.
     \endrst
-   */
-  BasicWriter &operator<<(long double value) {
-    write_double(value, FormatSpec());
-    return *this;
-  }
+    */
+    BasicWriter &operator<<(long double value)
+    {
+        write_double(value, FormatSpec());
+        return *this;
+    }
 
-  /**
+    /**
     Writes a character to the stream.
-   */
-  BasicWriter &operator<<(char value) {
-    buffer_.push_back(value);
-    return *this;
-  }
+    */
+    BasicWriter &operator<<(char value)
+    {
+        buffer_.push_back(value);
+        return *this;
+    }
 
-  BasicWriter &operator<<(
-      typename internal::WCharHelper<wchar_t, Char>::Supported value) {
-    buffer_.push_back(value);
-    return *this;
-  }
+    BasicWriter &operator<<(
+        typename internal::WCharHelper<wchar_t, Char>::Supported value)
+    {
+        buffer_.push_back(value);
+        return *this;
+    }
 
-  /**
+    /**
     \rst
     Writes *value* to the stream.
     \endrst
-   */
-  BasicWriter &operator<<(fmt::BasicStringRef<Char> value) {
-    const Char *str = value.data();
-    buffer_.append(str, str + value.size());
-    return *this;
-  }
+    */
+    BasicWriter &operator<<(fmt::BasicStringRef<Char> value)
+    {
+        const Char *str = value.data();
+        buffer_.append(str, str + value.size());
+        return *this;
+    }
 
-  BasicWriter &operator<<(
-      typename internal::WCharHelper<StringRef, Char>::Supported value) {
-    const char *str = value.data();
-    buffer_.append(str, str + value.size());
-    return *this;
-  }
+    BasicWriter &operator<<(
+        typename internal::WCharHelper<StringRef, Char>::Supported value)
+    {
+        const char *str = value.data();
+        buffer_.append(str, str + value.size());
+        return *this;
+    }
 
-  template <typename T, typename Spec, typename FillChar>
-  BasicWriter &operator<<(IntFormatSpec<T, Spec, FillChar> spec) {
-    internal::CharTraits<Char>::convert(FillChar());
-    write_int(spec.value(), spec);
-    return *this;
-  }
+    template <typename T, typename Spec, typename FillChar>
+    BasicWriter &operator<<(IntFormatSpec<T, Spec, FillChar> spec)
+    {
+        internal::CharTraits<Char>::convert(FillChar());
+        write_int(spec.value(), spec);
+        return *this;
+    }
 
-  template <typename StrChar>
-  BasicWriter &operator<<(const StrFormatSpec<StrChar> &spec) {
-    const StrChar *s = spec.str();
-    write_str(s, std::char_traits<Char>::length(s), spec);
-    return *this;
-  }
+    template <typename StrChar>
+    BasicWriter &operator<<(const StrFormatSpec<StrChar> &spec)
+    {
+        const StrChar *s = spec.str();
+        write_str(s, std::char_traits<Char>::length(s), spec);
+        return *this;
+    }
 
-  void clear() FMT_NOEXCEPT { buffer_.clear(); }
+    void clear() FMT_NOEXCEPT { buffer_.clear(); }
 };
 
 template <typename Char>
 template <typename StrChar>
 typename BasicWriter<Char>::CharPtr BasicWriter<Char>::write_str(
-      const StrChar *s, std::size_t size, const AlignSpec &spec) {
-  CharPtr out = CharPtr();
-  if (spec.width() > size) {
-    out = grow_buffer(spec.width());
-    Char fill = internal::CharTraits<Char>::cast(spec.fill());
-    if (spec.align() == ALIGN_RIGHT) {
-      std::fill_n(out, spec.width() - size, fill);
-      out += spec.width() - size;
-    } else if (spec.align() == ALIGN_CENTER) {
-      out = fill_padding(out, spec.width(), size, fill);
-    } else {
-      std::fill_n(out + size, spec.width() - size, fill);
-    }
-  } else {
-    out = grow_buffer(size);
-  }
-  std::copy(s, s + size, out);
-  return out;
+    const StrChar *s, std::size_t size, const AlignSpec &spec)
+{
+    CharPtr out = CharPtr();
+    if (spec.width() > size)
+    {
+        out = grow_buffer(spec.width());
+        Char fill = internal::CharTraits<Char>::cast(spec.fill());
+        if (spec.align() == ALIGN_RIGHT)
+        {
+            std::uninitialized_fill_n(out, spec.width() - size, fill);
+            out += spec.width() - size;
+        }
+        else if (spec.align() == ALIGN_CENTER)
+        {
+            out = fill_padding(out, spec.width(), size, fill);
+        }
+        else
+        {
+            std::uninitialized_fill_n(out + size, spec.width() - size, fill);
+        }
+    }
+    else
+    {
+        out = grow_buffer(size);
+    }
+    std::uninitialized_copy(s, s + size, out);
+    return out;
+}
+
+template <typename Char>
+template <typename StrChar>
+void BasicWriter<Char>::write_str(
+    const internal::Arg::StringValue<StrChar> &s, const FormatSpec &spec)
+{
+    // Check if StrChar is convertible to Char.
+    internal::CharTraits<Char>::convert(StrChar());
+    if (spec.type_ && spec.type_ != 's')
+        internal::report_unknown_type(spec.type_, "string");
+    const StrChar *str_value = s.value;
+    std::size_t str_size = s.size;
+    if (str_size == 0)
+    {
+        if (!str_value)
+        {
+            FMT_THROW(FormatError("string pointer is null"));
+            return;
+        }
+    }
+    std::size_t precision = spec.precision_;
+    if (spec.precision_ >= 0 && precision < str_size)
+        str_size = spec.precision_;
+    write_str(str_value, str_size, spec);
 }
 
 template <typename Char>
 typename BasicWriter<Char>::CharPtr
-  BasicWriter<Char>::fill_padding(
+BasicWriter<Char>::fill_padding(
     CharPtr buffer, unsigned total_size,
-    std::size_t content_size, wchar_t fill) {
-  std::size_t padding = total_size - content_size;
-  std::size_t left_padding = padding / 2;
-  Char fill_char = internal::CharTraits<Char>::cast(fill);
-  std::fill_n(buffer, left_padding, fill_char);
-  buffer += left_padding;
-  CharPtr content = buffer;
-  std::fill_n(buffer + content_size, padding - left_padding, fill_char);
-  return content;
+    std::size_t content_size, wchar_t fill)
+{
+    std::size_t padding = total_size - content_size;
+    std::size_t left_padding = padding / 2;
+    Char fill_char = internal::CharTraits<Char>::cast(fill);
+    std::uninitialized_fill_n(buffer, left_padding, fill_char);
+    buffer += left_padding;
+    CharPtr content = buffer;
+    std::uninitialized_fill_n(buffer + content_size,
+                              padding - left_padding, fill_char);
+    return content;
 }
 
 template <typename Char>
 template <typename Spec>
 typename BasicWriter<Char>::CharPtr
-  BasicWriter<Char>::prepare_int_buffer(
+BasicWriter<Char>::prepare_int_buffer(
     unsigned num_digits, const Spec &spec,
-    const char *prefix, unsigned prefix_size) {
-  unsigned width = spec.width();
-  Alignment align = spec.align();
-  Char fill = internal::CharTraits<Char>::cast(spec.fill());
-  if (spec.precision() > static_cast<int>(num_digits)) {
-    // Octal prefix '0' is counted as a digit, so ignore it if precision
-    // is specified.
-    if (prefix_size > 0 && prefix[prefix_size - 1] == '0')
-      --prefix_size;
-    unsigned number_size = prefix_size + spec.precision();
-    AlignSpec subspec(number_size, '0', ALIGN_NUMERIC);
-    if (number_size >= width)
-      return prepare_int_buffer(num_digits, subspec, prefix, prefix_size);
-    buffer_.reserve(width);
-    unsigned fill_size = width - number_size;
-    if (align != ALIGN_LEFT) {
-      CharPtr p = grow_buffer(fill_size);
-      std::fill(p, p + fill_size, fill);
-    }
-    CharPtr result = prepare_int_buffer(
-        num_digits, subspec, prefix, prefix_size);
-    if (align == ALIGN_LEFT) {
-      CharPtr p = grow_buffer(fill_size);
-      std::fill(p, p + fill_size, fill);
-    }
-    return result;
-  }
-  unsigned size = prefix_size + num_digits;
-  if (width <= size) {
-    CharPtr p = grow_buffer(size);
-    std::copy(prefix, prefix + prefix_size, p);
-    return p + size - 1;
-  }
-  CharPtr p = grow_buffer(width);
-  CharPtr end = p + width;
-  if (align == ALIGN_LEFT) {
-    std::copy(prefix, prefix + prefix_size, p);
-    p += size;
-    std::fill(p, end, fill);
-  } else if (align == ALIGN_CENTER) {
-    p = fill_padding(p, width, size, fill);
-    std::copy(prefix, prefix + prefix_size, p);
-    p += size;
-  } else {
-    if (align == ALIGN_NUMERIC) {
-      if (prefix_size != 0) {
-        p = std::copy(prefix, prefix + prefix_size, p);
-        size -= prefix_size;
-      }
-    } else {
-      std::copy(prefix, prefix + prefix_size, end - size);
+    const char *prefix, unsigned prefix_size)
+{
+    unsigned width = spec.width();
+    Alignment align = spec.align();
+    Char fill = internal::CharTraits<Char>::cast(spec.fill());
+    if (spec.precision() > static_cast<int>(num_digits))
+    {
+        // Octal prefix '0' is counted as a digit, so ignore it if precision
+        // is specified.
+        if (prefix_size > 0 && prefix[prefix_size - 1] == '0')
+            --prefix_size;
+        unsigned number_size = prefix_size + spec.precision();
+        AlignSpec subspec(number_size, '0', ALIGN_NUMERIC);
+        if (number_size >= width)
+            return prepare_int_buffer(num_digits, subspec, prefix, prefix_size);
+        buffer_.reserve(width);
+        unsigned fill_size = width - number_size;
+        if (align != ALIGN_LEFT)
+        {
+            CharPtr p = grow_buffer(fill_size);
+            std::uninitialized_fill(p, p + fill_size, fill);
+        }
+        CharPtr result = prepare_int_buffer(
+                             num_digits, subspec, prefix, prefix_size);
+        if (align == ALIGN_LEFT)
+        {
+            CharPtr p = grow_buffer(fill_size);
+            std::uninitialized_fill(p, p + fill_size, fill);
+        }
+        return result;
     }
-    std::fill(p, end - size, fill);
-    p = end;
-  }
-  return p - 1;
+    unsigned size = prefix_size + num_digits;
+    if (width <= size)
+    {
+        CharPtr p = grow_buffer(size);
+        std::uninitialized_copy(prefix, prefix + prefix_size, p);
+        return p + size - 1;
+    }
+    CharPtr p = grow_buffer(width);
+    CharPtr end = p + width;
+    if (align == ALIGN_LEFT)
+    {
+        std::uninitialized_copy(prefix, prefix + prefix_size, p);
+        p += size;
+        std::uninitialized_fill(p, end, fill);
+    }
+    else if (align == ALIGN_CENTER)
+    {
+        p = fill_padding(p, width, size, fill);
+        std::uninitialized_copy(prefix, prefix + prefix_size, p);
+        p += size;
+    }
+    else
+    {
+        if (align == ALIGN_NUMERIC)
+        {
+            if (prefix_size != 0)
+            {
+                p = std::uninitialized_copy(prefix, prefix + prefix_size, p);
+                size -= prefix_size;
+            }
+        }
+        else
+        {
+            std::uninitialized_copy(prefix, prefix + prefix_size, end - size);
+        }
+        std::uninitialized_fill(p, end - size, fill);
+        p = end;
+    }
+    return p - 1;
 }
 
 template <typename Char>
 template <typename T, typename Spec>
-void BasicWriter<Char>::write_int(T value, Spec spec) {
-  unsigned prefix_size = 0;
-  typedef typename internal::IntTraits<T>::MainType UnsignedType;
-  UnsignedType abs_value = value;
-  char prefix[4] = "";
-  if (internal::is_negative(value)) {
-    prefix[0] = '-';
-    ++prefix_size;
-    abs_value = 0 - abs_value;
-  } else if (spec.flag(SIGN_FLAG)) {
-    prefix[0] = spec.flag(PLUS_FLAG) ? '+' : ' ';
-    ++prefix_size;
-  }
-  switch (spec.type()) {
-  case 0: case 'd': {
-    unsigned num_digits = internal::count_digits(abs_value);
-    CharPtr p = prepare_int_buffer(
-      num_digits, spec, prefix, prefix_size) + 1 - num_digits;
-    internal::format_decimal(get(p), abs_value, num_digits);
-    break;
-  }
-  case 'x': case 'X': {
-    UnsignedType n = abs_value;
-    if (spec.flag(HASH_FLAG)) {
-      prefix[prefix_size++] = '0';
-      prefix[prefix_size++] = spec.type();
-    }
-    unsigned num_digits = 0;
-    do {
-      ++num_digits;
-    } while ((n >>= 4) != 0);
-    Char *p = get(prepare_int_buffer(
-      num_digits, spec, prefix, prefix_size));
-    n = abs_value;
-    const char *digits = spec.type() == 'x' ?
-        "0123456789abcdef" : "0123456789ABCDEF";
-    do {
-      *p-- = digits[n & 0xf];
-    } while ((n >>= 4) != 0);
-    break;
-  }
-  case 'b': case 'B': {
-    UnsignedType n = abs_value;
-    if (spec.flag(HASH_FLAG)) {
-      prefix[prefix_size++] = '0';
-      prefix[prefix_size++] = spec.type();
-    }
-    unsigned num_digits = 0;
-    do {
-      ++num_digits;
-    } while ((n >>= 1) != 0);
-    Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
-    n = abs_value;
-    do {
-      *p-- = '0' + (n & 1);
-    } while ((n >>= 1) != 0);
-    break;
-  }
-  case 'o': {
-    UnsignedType n = abs_value;
-    if (spec.flag(HASH_FLAG))
-      prefix[prefix_size++] = '0';
-    unsigned num_digits = 0;
-    do {
-      ++num_digits;
-    } while ((n >>= 3) != 0);
-    Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
-    n = abs_value;
-    do {
-      *p-- = '0' + (n & 7);
-    } while ((n >>= 3) != 0);
-    break;
-  }
-  default:
-    internal::report_unknown_type(
-      spec.type(), spec.flag(CHAR_FLAG) ? "char" : "integer");
-    break;
-  }
+void BasicWriter<Char>::write_int(T value, Spec spec)
+{
+    unsigned prefix_size = 0;
+    typedef typename internal::IntTraits<T>::MainType UnsignedType;
+    UnsignedType abs_value = value;
+    char prefix[4] = "";
+    if (internal::is_negative(value))
+    {
+        prefix[0] = '-';
+        ++prefix_size;
+        abs_value = 0 - abs_value;
+    }
+    else if (spec.flag(SIGN_FLAG))
+    {
+        prefix[0] = spec.flag(PLUS_FLAG) ? '+' : ' ';
+        ++prefix_size;
+    }
+    switch (spec.type())
+    {
+    case 0:
+    case 'd':
+    {
+        unsigned num_digits = internal::count_digits(abs_value);
+        CharPtr p = prepare_int_buffer(
+                        num_digits, spec, prefix, prefix_size) + 1 - num_digits;
+        internal::format_decimal(get(p), abs_value, num_digits);
+        break;
+    }
+    case 'x':
+    case 'X':
+    {
+        UnsignedType n = abs_value;
+        if (spec.flag(HASH_FLAG))
+        {
+            prefix[prefix_size++] = '0';
+            prefix[prefix_size++] = spec.type();
+        }
+        unsigned num_digits = 0;
+        do
+        {
+            ++num_digits;
+        }
+        while ((n >>= 4) != 0);
+        Char *p = get(prepare_int_buffer(
+                          num_digits, spec, prefix, prefix_size));
+        n = abs_value;
+        const char *digits = spec.type() == 'x' ?
+                             "0123456789abcdef" : "0123456789ABCDEF";
+        do
+        {
+            *p-- = digits[n & 0xf];
+        }
+        while ((n >>= 4) != 0);
+        break;
+    }
+    case 'b':
+    case 'B':
+    {
+        UnsignedType n = abs_value;
+        if (spec.flag(HASH_FLAG))
+        {
+            prefix[prefix_size++] = '0';
+            prefix[prefix_size++] = spec.type();
+        }
+        unsigned num_digits = 0;
+        do
+        {
+            ++num_digits;
+        }
+        while ((n >>= 1) != 0);
+        Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
+        n = abs_value;
+        do
+        {
+            *p-- = static_cast<Char>('0' + (n & 1));
+        }
+        while ((n >>= 1) != 0);
+        break;
+    }
+    case 'o':
+    {
+        UnsignedType n = abs_value;
+        if (spec.flag(HASH_FLAG))
+            prefix[prefix_size++] = '0';
+        unsigned num_digits = 0;
+        do
+        {
+            ++num_digits;
+        }
+        while ((n >>= 3) != 0);
+        Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
+        n = abs_value;
+        do
+        {
+            *p-- = static_cast<Char>('0' + (n & 7));
+        }
+        while ((n >>= 3) != 0);
+        break;
+    }
+    default:
+        internal::report_unknown_type(
+            spec.type(), spec.flag(CHAR_FLAG) ? "char" : "integer");
+        break;
+    }
 }
 
 template <typename Char>
 template <typename T>
 void BasicWriter<Char>::write_double(
-    T value, const FormatSpec &spec) {
-  // Check type.
-  char type = spec.type();
-  bool upper = false;
-  switch (type) {
-  case 0:
-    type = 'g';
-    break;
-  case 'e': case 'f': case 'g': case 'a':
-    break;
-  case 'F':
+    T value, const FormatSpec &spec)
+{
+    // Check type.
+    char type = spec.type();
+    bool upper = false;
+    switch (type)
+    {
+    case 0:
+        type = 'g';
+        break;
+    case 'e':
+    case 'f':
+    case 'g':
+    case 'a':
+        break;
+    case 'F':
 #ifdef _MSC_VER
-    // MSVC's printf doesn't support 'F'.
-    type = 'f';
+        // MSVC's printf doesn't support 'F'.
+        type = 'f';
 #endif
     // Fall through.
-  case 'E': case 'G': case 'A':
-    upper = true;
-    break;
-  default:
-    internal::report_unknown_type(type, "double");
-    break;
-  }
+    case 'E':
+    case 'G':
+    case 'A':
+        upper = true;
+        break;
+    default:
+        internal::report_unknown_type(type, "double");
+        break;
+    }
 
-  char sign = 0;
-  // Use getsign instead of value < 0 because the latter is always
-  // false for NaN.
-  if (internal::getsign(static_cast<double>(value))) {
-    sign = '-';
-    value = -value;
-  } else if (spec.flag(SIGN_FLAG)) {
-    sign = spec.flag(PLUS_FLAG) ? '+' : ' ';
-  }
+    char sign = 0;
+    // Use isnegative instead of value < 0 because the latter is always
+    // false for NaN.
+    if (internal::FPUtil::isnegative(static_cast<double>(value)))
+    {
+        sign = '-';
+        value = -value;
+    }
+    else if (spec.flag(SIGN_FLAG))
+    {
+        sign = spec.flag(PLUS_FLAG) ? '+' : ' ';
+    }
 
-  if (value != value) {
-    // Format NaN ourselves because sprintf's output is not consistent
-    // across platforms.
-    std::size_t nan_size = 4;
-    const char *nan = upper ? " NAN" : " nan";
-    if (!sign) {
-      --nan_size;
-      ++nan;
+    if (internal::FPUtil::isnotanumber(value))
+    {
+        // Format NaN ourselves because sprintf's output is not consistent
+        // across platforms.
+        std::size_t nan_size = 4;
+        const char *nan = upper ? " NAN" : " nan";
+        if (!sign)
+        {
+            --nan_size;
+            ++nan;
+        }
+        CharPtr out = write_str(nan, nan_size, spec);
+        if (sign)
+            *out = sign;
+        return;
     }
-    CharPtr out = write_str(nan, nan_size, spec);
-    if (sign)
-      *out = sign;
-    return;
-  }
 
-  if (internal::isinfinity(value)) {
-    // Format infinity ourselves because sprintf's output is not consistent
-    // across platforms.
-    std::size_t inf_size = 4;
-    const char *inf = upper ? " INF" : " inf";
-    if (!sign) {
-      --inf_size;
-      ++inf;
+    if (internal::FPUtil::isinfinity(value))
+    {
+        // Format infinity ourselves because sprintf's output is not consistent
+        // across platforms.
+        std::size_t inf_size = 4;
+        const char *inf = upper ? " INF" : " inf";
+        if (!sign)
+        {
+            --inf_size;
+            ++inf;
+        }
+        CharPtr out = write_str(inf, inf_size, spec);
+        if (sign)
+            *out = sign;
+        return;
     }
-    CharPtr out = write_str(inf, inf_size, spec);
+
+    std::size_t offset = buffer_.size();
+    unsigned width = spec.width();
     if (sign)
-      *out = sign;
-    return;
-  }
+    {
+        buffer_.reserve(buffer_.size() + (width > 1u ? width : 1u));
+        if (width > 0)
+            --width;
+        ++offset;
+    }
 
-  std::size_t offset = buffer_.size();
-  unsigned width = spec.width();
-  if (sign) {
-    buffer_.reserve(buffer_.size() + (std::max)(width, 1u));
-    if (width > 0)
-      --width;
-    ++offset;
-  }
+    // Build format string.
+    enum { MAX_FORMAT_SIZE = 10 }; // longest format: %#-*.*Lg
+    Char format[MAX_FORMAT_SIZE];
+    Char *format_ptr = format;
+    *format_ptr++ = '%';
+    unsigned width_for_sprintf = width;
+    if (spec.flag(HASH_FLAG))
+        *format_ptr++ = '#';
+    if (spec.align() == ALIGN_CENTER)
+    {
+        width_for_sprintf = 0;
+    }
+    else
+    {
+        if (spec.align() == ALIGN_LEFT)
+            *format_ptr++ = '-';
+        if (width != 0)
+            *format_ptr++ = '*';
+    }
+    if (spec.precision() >= 0)
+    {
+        *format_ptr++ = '.';
+        *format_ptr++ = '*';
+    }
 
-  // Build format string.
-  enum { MAX_FORMAT_SIZE = 10}; // longest format: %#-*.*Lg
-  Char format[MAX_FORMAT_SIZE];
-  Char *format_ptr = format;
-  *format_ptr++ = '%';
-  unsigned width_for_sprintf = width;
-  if (spec.flag(HASH_FLAG))
-    *format_ptr++ = '#';
-  if (spec.align() == ALIGN_CENTER) {
-    width_for_sprintf = 0;
-  } else {
-    if (spec.align() == ALIGN_LEFT)
-      *format_ptr++ = '-';
-    if (width != 0)
-      *format_ptr++ = '*';
-  }
-  if (spec.precision() >= 0) {
-    *format_ptr++ = '.';
-    *format_ptr++ = '*';
-  }
+    append_float_length(format_ptr, value);
+    *format_ptr++ = type;
+    *format_ptr = '\0';
 
-  append_float_length(format_ptr, value);
-  *format_ptr++ = type;
-  *format_ptr = '\0';
-
-  // Format using snprintf.
-  Char fill = internal::CharTraits<Char>::cast(spec.fill());
-  for (;;) {
-    std::size_t buffer_size = buffer_.capacity() - offset;
-#if _MSC_VER
-    // MSVC's vsnprintf_s doesn't work with zero size, so reserve
-    // space for at least one extra character to make the size non-zero.
-    // Note that the buffer's capacity will increase by more than 1.
-    if (buffer_size == 0) {
-      buffer_.reserve(offset + 1);
-      buffer_size = buffer_.capacity() - offset;
-    }
+    // Format using snprintf.
+    Char fill = internal::CharTraits<Char>::cast(spec.fill());
+    for (;;)
+    {
+        std::size_t buffer_size = buffer_.capacity() - offset;
+#ifdef _MSC_VER
+        // MSVC's vsnprintf_s doesn't work with zero size, so reserve
+        // space for at least one extra character to make the size non-zero.
+        // Note that the buffer's capacity will increase by more than 1.
+        if (buffer_size == 0)
+        {
+            buffer_.reserve(offset + 1);
+            buffer_size = buffer_.capacity() - offset;
+        }
 #endif
-    Char *start = &buffer_[offset];
-    int n = internal::CharTraits<Char>::format_float(
-        start, buffer_size, format, width_for_sprintf, spec.precision(), value);
-    if (n >= 0 && offset + n < buffer_.capacity()) {
-      if (sign) {
-        if ((spec.align() != ALIGN_RIGHT && spec.align() != ALIGN_DEFAULT) ||
-            *start != ' ') {
-          *(start - 1) = sign;
-          sign = 0;
-        } else {
-          *(start - 1) = fill;
+        Char *start = &buffer_[offset];
+        int n = internal::CharTraits<Char>::format_float(
+                    start, buffer_size, format, width_for_sprintf, spec.precision(), value);
+        if (n >= 0 && offset + n < buffer_.capacity())
+        {
+            if (sign)
+            {
+                if ((spec.align() != ALIGN_RIGHT && spec.align() != ALIGN_DEFAULT) ||
+                        *start != ' ')
+                {
+                    *(start - 1) = sign;
+                    sign = 0;
+                }
+                else
+                {
+                    *(start - 1) = fill;
+                }
+                ++n;
+            }
+            if (spec.align() == ALIGN_CENTER &&
+                    spec.width() > static_cast<unsigned>(n))
+            {
+                width = spec.width();
+                CharPtr p = grow_buffer(width);
+                std::memmove(get(p) + (width - n) / 2, get(p), n * sizeof(Char));
+                fill_padding(p, spec.width(), n, fill);
+                return;
+            }
+            if (spec.fill() != ' ' || sign)
+            {
+                while (*start == ' ')
+                    *start++ = fill;
+                if (sign)
+                    *(start - 1) = sign;
+            }
+            grow_buffer(n);
+            return;
         }
-        ++n;
-      }
-      if (spec.align() == ALIGN_CENTER &&
-          spec.width() > static_cast<unsigned>(n)) {
-        width = spec.width();
-        CharPtr p = grow_buffer(width);
-        std::copy(p, p + n, p + (width - n) / 2);
-        fill_padding(p, spec.width(), n, fill);
-        return;
-      }
-      if (spec.fill() != ' ' || sign) {
-        while (*start == ' ')
-          *start++ = fill;
-        if (sign)
-          *(start - 1) = sign;
-      }
-      grow_buffer(n);
-      return;
+        // If n is negative we ask to increase the capacity by at least 1,
+        // but as std::vector, the buffer grows exponentially.
+        buffer_.reserve(n >= 0 ? offset + n + 1 : buffer_.capacity() + 1);
     }
-    // If n is negative we ask to increase the capacity by at least 1,
-    // but as std::vector, the buffer grows exponentially.
-    buffer_.reserve(n >= 0 ? offset + n + 1 : buffer_.capacity() + 1);
-  }
 }
 
 /**
-  \rst
-  This class template provides operations for formatting and writing data
-  into a character stream. The output is stored in a memory buffer that grows
-  dynamically.
+\rst
+This class template provides operations for formatting and writing data
+into a character stream. The output is stored in a memory buffer that grows
+dynamically.
 
-  You can use one of the following typedefs for common character types
-  and the standard allocator:
+You can use one of the following typedefs for common character types
+and the standard allocator:
 
-  +---------------+-----------------------------------------------------+
-  | Type          | Definition                                          |
-  +===============+=====================================================+
-  | MemoryWriter  | BasicMemoryWriter<char, std::allocator<char>>       |
-  +---------------+-----------------------------------------------------+
-  | WMemoryWriter | BasicMemoryWriter<wchar_t, std::allocator<wchar_t>> |
-  +---------------+-----------------------------------------------------+
++---------------+-----------------------------------------------------+
+| Type          | Definition                                          |
++===============+=====================================================+
+| MemoryWriter  | BasicMemoryWriter<char, std::allocator<char>>       |
++---------------+-----------------------------------------------------+
+| WMemoryWriter | BasicMemoryWriter<wchar_t, std::allocator<wchar_t>> |
++---------------+-----------------------------------------------------+
 
-  **Example**::
+**Example**::
 
-     MemoryWriter out;
-     out << "The answer is " << 42 << "\n";
-     out.write("({:+f}, {:+f})", -3.14, 3.14);
+MemoryWriter out;
+out << "The answer is " << 42 << "\n";
+out.write("({:+f}, {:+f})", -3.14, 3.14);
 
-  This will write the following output to the ``out`` object:
+This will write the following output to the ``out`` object:
 
-  .. code-block:: none
+.. code-block:: none
 
-     The answer is 42
-     (-3.140000, +3.140000)
+The answer is 42
+(-3.140000, +3.140000)
 
-  The output can be converted to an ``std::string`` with ``out.str()`` or
-  accessed as a C string with ``out.c_str()``.
-  \endrst
- */
+The output can be converted to an ``std::string`` with ``out.str()`` or
+accessed as a C string with ``out.c_str()``.
+\endrst
+*/
 template <typename Char, typename Allocator = std::allocator<Char> >
-class BasicMemoryWriter : public BasicWriter<Char> {
- private:
-  internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE, Allocator> buffer_;
+class BasicMemoryWriter : public BasicWriter<Char>
+{
+private:
+    internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE, Allocator> buffer_;
 
- public:
-  explicit BasicMemoryWriter(const Allocator& alloc = Allocator())
-    : BasicWriter<Char>(buffer_), buffer_(alloc) {}
+public:
+    explicit BasicMemoryWriter(const Allocator& alloc = Allocator())
+        : BasicWriter<Char>(buffer_), buffer_(alloc) {}
 
 #if FMT_USE_RVALUE_REFERENCES
-  /**
+    /**
     \rst
     Constructs a :class:`fmt::BasicMemoryWriter` object moving the content
     of the other object to it.
     \endrst
-   */
-  BasicMemoryWriter(BasicMemoryWriter &&other)
-    : BasicWriter<Char>(buffer_), buffer_(std::move(other.buffer_)) {
-  }
+    */
+    BasicMemoryWriter(BasicMemoryWriter &&other)
+        : BasicWriter<Char>(buffer_), buffer_(std::move(other.buffer_))
+    {
+    }
 
-  /**
+    /**
     \rst
     Moves the content of the other ``BasicMemoryWriter`` object to this one.
     \endrst
-   */
-  BasicMemoryWriter &operator=(BasicMemoryWriter &&other) {
-    buffer_ = std::move(other.buffer_);
-    return *this;
-  }
+    */
+    BasicMemoryWriter &operator=(BasicMemoryWriter &&other)
+    {
+        buffer_ = std::move(other.buffer_);
+        return *this;
+    }
 #endif
 };
 
@@ -2512,49 +3390,50 @@ typedef BasicMemoryWriter<char> MemoryWriter;
 typedef BasicMemoryWriter<wchar_t> WMemoryWriter;
 
 /**
-  \rst
-  This class template provides operations for formatting and writing data
-  into a fixed-size array. For writing into a dynamically growing buffer
-  use :class:`fmt::BasicMemoryWriter`.
-  
-  Any write method will throw ``std::runtime_error`` if the output doesn't fit
-  into the array.
-
-  You can use one of the following typedefs for common character types:
-
-  +--------------+---------------------------+
-  | Type         | Definition                |
-  +==============+===========================+
-  | ArrayWriter  | BasicArrayWriter<char>    |
-  +--------------+---------------------------+
-  | WArrayWriter | BasicArrayWriter<wchar_t> |
-  +--------------+---------------------------+
-  \endrst
- */
+\rst
+This class template provides operations for formatting and writing data
+into a fixed-size array. For writing into a dynamically growing buffer
+use :class:`fmt::BasicMemoryWriter`.
+
+Any write method will throw ``std::runtime_error`` if the output doesn't fit
+into the array.
+
+You can use one of the following typedefs for common character types:
+
++--------------+---------------------------+
+| Type         | Definition                |
++==============+===========================+
+| ArrayWriter  | BasicArrayWriter<char>    |
++--------------+---------------------------+
+| WArrayWriter | BasicArrayWriter<wchar_t> |
++--------------+---------------------------+
+\endrst
+*/
 template <typename Char>
-class BasicArrayWriter : public BasicWriter<Char> {
- private:
-  internal::FixedBuffer<Char> buffer_;
-
- public:
-  /**
-   \rst
-   Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
-   given size.
-   \endrst
-   */
-  BasicArrayWriter(Char *array, std::size_t size)
-    : BasicWriter<Char>(buffer_), buffer_(array, size) {}
-
-  /**
-   \rst
-   Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
-   size known at compile time.
-   \endrst
-   */
-  template <std::size_t SIZE>
-  explicit BasicArrayWriter(Char (&array)[SIZE])
-    : BasicWriter<Char>(buffer_), buffer_(array, SIZE) {}
+class BasicArrayWriter : public BasicWriter<Char>
+{
+private:
+    internal::FixedBuffer<Char> buffer_;
+
+public:
+    /**
+    \rst
+    Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
+    given size.
+    \endrst
+    */
+    BasicArrayWriter(Char *array, std::size_t size)
+        : BasicWriter<Char>(buffer_), buffer_(array, size) {}
+
+    /**
+    \rst
+    Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
+    size known at compile time.
+    \endrst
+    */
+    template <std::size_t SIZE>
+    explicit BasicArrayWriter(Char(&array)[SIZE])
+        : BasicWriter<Char>(buffer_), buffer_(array, SIZE) {}
 };
 
 typedef BasicArrayWriter<char> ArrayWriter;
@@ -2562,298 +3441,338 @@ typedef BasicArrayWriter<wchar_t> WArrayWriter;
 
 // Formats a value.
 template <typename Char, typename T>
-void format(BasicFormatter<Char> &f, const Char *&format_str, const T &value) {
-  std::basic_ostringstream<Char> os;
-  os << value;
-  std::basic_string<Char> str = os.str();
-  internal::Arg arg = internal::MakeValue<Char>(str);
-  arg.type = static_cast<internal::Arg::Type>(
-        internal::MakeValue<Char>::type(str));
-  format_str = f.format(format_str, arg);
+void format(BasicFormatter<Char> &f, const Char *&format_str, const T &value)
+{
+    internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE> buffer;
+
+    internal::FormatBuf<Char> format_buf(buffer);
+    std::basic_ostream<Char> output(&format_buf);
+    output << value;
+
+    BasicStringRef<Char> str(&buffer[0], format_buf.size());
+    typedef internal::MakeValue< BasicFormatter<Char> > MakeValue;
+    internal::Arg arg = MakeValue(str);
+    arg.type = static_cast<internal::Arg::Type>(MakeValue::type(str));
+    format_str = f.format(format_str, arg);
 }
 
 // Reports a system error without throwing an exception.
 // Can be used to report errors from destructors.
-void report_system_error(int error_code, StringRef message) FMT_NOEXCEPT;
+FMT_API void report_system_error(int error_code,
+                                 StringRef message) FMT_NOEXCEPT;
 
 #if FMT_USE_WINDOWS_H
 
 /** A Windows error. */
-class WindowsError : public SystemError {
- private:
-  void init(int error_code, CStringRef format_str, ArgList args);
-
- public:
-  /**
-   \rst
-   Constructs a :class:`fmt::WindowsError` object with the description
-   of the form
-
-   .. parsed-literal::
-     *<message>*: *<system-message>*
-
-   where *<message>* is the formatted message and *<system-message>* is the
-   system message corresponding to the error code.
-   *error_code* is a Windows error code as given by ``GetLastError``.
-   If *error_code* is not a valid error code such as -1, the system message
-   will look like "error -1".
-
-   **Example**::
-
-     // This throws a WindowsError with the description
-     //   cannot open file 'madeup': The system cannot find the file specified.
-     // or similar (system message may vary).
-     const char *filename = "madeup";
-     LPOFSTRUCT of = LPOFSTRUCT();
-     HFILE file = OpenFile(filename, &of, OF_READ);
-     if (file == HFILE_ERROR) {
-       throw fmt::WindowsError(GetLastError(),
-                               "cannot open file '{}'", filename);
-     }
-   \endrst
-  */
-  WindowsError(int error_code, CStringRef message) {
-    init(error_code, message, ArgList());
-  }
-  FMT_VARIADIC_CTOR(WindowsError, init, int, CStringRef)
+class WindowsError : public SystemError
+{
+private:
+    FMT_API void init(int error_code, CStringRef format_str, ArgList args);
+
+public:
+    /**
+    \rst
+    Constructs a :class:`fmt::WindowsError` object with the description
+    of the form
+
+    .. parsed-literal::
+    *<message>*: *<system-message>*
+
+    where *<message>* is the formatted message and *<system-message>* is the
+    system message corresponding to the error code.
+    *error_code* is a Windows error code as given by ``GetLastError``.
+    If *error_code* is not a valid error code such as -1, the system message
+    will look like "error -1".
+
+    **Example**::
+
+    // This throws a WindowsError with the description
+    //   cannot open file 'madeup': The system cannot find the file specified.
+    // or similar (system message may vary).
+    const char *filename = "madeup";
+    LPOFSTRUCT of = LPOFSTRUCT();
+    HFILE file = OpenFile(filename, &of, OF_READ);
+    if (file == HFILE_ERROR) {
+    throw fmt::WindowsError(GetLastError(),
+    "cannot open file '{}'", filename);
+    }
+    \endrst
+    */
+    WindowsError(int error_code, CStringRef message)
+    {
+        init(error_code, message, ArgList());
+    }
+    FMT_VARIADIC_CTOR(WindowsError, init, int, CStringRef)
 };
 
 // Reports a Windows error without throwing an exception.
 // Can be used to report errors from destructors.
-void report_windows_error(int error_code, StringRef message) FMT_NOEXCEPT;
+FMT_API void report_windows_error(int error_code,
+                                  StringRef message) FMT_NOEXCEPT;
 
 #endif
 
 enum Color { BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE };
 
 /**
-  Formats a string and prints it to stdout using ANSI escape sequences
-  to specify color (experimental).
-  Example:
-    PrintColored(fmt::RED, "Elapsed time: {0:.2f} seconds") << 1.23;
- */
-void print_colored(Color c, CStringRef format, ArgList args);
+Formats a string and prints it to stdout using ANSI escape sequences
+to specify color (experimental).
+Example:
+print_colored(fmt::RED, "Elapsed time: {0:.2f} seconds", 1.23);
+*/
+FMT_API void print_colored(Color c, CStringRef format, ArgList args);
 
 /**
-  \rst
-  Formats arguments and returns the result as a string.
+\rst
+Formats arguments and returns the result as a string.
 
-  **Example**::
+**Example**::
 
-    std::string message = format("The answer is {}", 42);
-  \endrst
+std::string message = format("The answer is {}", 42);
+\endrst
 */
-inline std::string format(CStringRef format_str, ArgList args) {
-  MemoryWriter w;
-  w.write(format_str, args);
-  return w.str();
+inline std::string format(CStringRef format_str, ArgList args)
+{
+    MemoryWriter w;
+    w.write(format_str, args);
+    return w.str();
 }
 
-inline std::wstring format(WCStringRef format_str, ArgList args) {
-  WMemoryWriter w;
-  w.write(format_str, args);
-  return w.str();
+inline std::wstring format(WCStringRef format_str, ArgList args)
+{
+    WMemoryWriter w;
+    w.write(format_str, args);
+    return w.str();
 }
 
 /**
-  \rst
-  Prints formatted data to the file *f*.
-
-  **Example**::
+\rst
+Prints formatted data to the file *f*.
 
-    print(stderr, "Don't {}!", "panic");
-  \endrst
- */
-void print(std::FILE *f, CStringRef format_str, ArgList args);
+**Example**::
 
-/**
-  \rst
-  Prints formatted data to ``stdout``.
-
-  **Example**::
-
-    print("Elapsed time: {0:.2f} seconds", 1.23);
-  \endrst
- */
-void print(CStringRef format_str, ArgList args);
+print(stderr, "Don't {}!", "panic");
+\endrst
+*/
+FMT_API void print(std::FILE *f, CStringRef format_str, ArgList args);
 
 /**
-  \rst
-  Prints formatted data to the stream *os*.
+\rst
+Prints formatted data to ``stdout``.
 
-  **Example**::
+**Example**::
 
-    print(cerr, "Don't {}!", "panic");
-  \endrst
- */
-void print(std::ostream &os, CStringRef format_str, ArgList args);
+print("Elapsed time: {0:.2f} seconds", 1.23);
+\endrst
+*/
+FMT_API void print(CStringRef format_str, ArgList args);
 
 template <typename Char>
-void printf(BasicWriter<Char> &w, BasicCStringRef<Char> format, ArgList args) {
-  internal::PrintfFormatter<Char>(args).format(w, format);
+void printf(BasicWriter<Char> &w, BasicCStringRef<Char> format, ArgList args)
+{
+    internal::PrintfFormatter<Char>(args).format(w, format);
 }
 
 /**
-  \rst
-  Formats arguments and returns the result as a string.
+\rst
+Formats arguments and returns the result as a string.
 
-  **Example**::
+**Example**::
 
-    std::string message = fmt::sprintf("The answer is %d", 42);
-  \endrst
+std::string message = fmt::sprintf("The answer is %d", 42);
+\endrst
 */
-inline std::string sprintf(CStringRef format, ArgList args) {
-  MemoryWriter w;
-  printf(w, format, args);
-  return w.str();
+inline std::string sprintf(CStringRef format, ArgList args)
+{
+    MemoryWriter w;
+    printf(w, format, args);
+    return w.str();
+}
+
+inline std::wstring sprintf(WCStringRef format, ArgList args)
+{
+    WMemoryWriter w;
+    printf(w, format, args);
+    return w.str();
 }
 
 /**
-  \rst
-  Prints formatted data to the file *f*.
+\rst
+Prints formatted data to the file *f*.
 
-  **Example**::
+**Example**::
 
-    fmt::fprintf(stderr, "Don't %s!", "panic");
-  \endrst
- */
-int fprintf(std::FILE *f, CStringRef format, ArgList args);
+fmt::fprintf(stderr, "Don't %s!", "panic");
+\endrst
+*/
+FMT_API int fprintf(std::FILE *f, CStringRef format, ArgList args);
 
 /**
-  \rst
-  Prints formatted data to ``stdout``.
+\rst
+Prints formatted data to ``stdout``.
 
-  **Example**::
+**Example**::
 
-    fmt::printf("Elapsed time: %.2f seconds", 1.23);
-  \endrst
- */
-inline int printf(CStringRef format, ArgList args) {
-  return fprintf(stdout, format, args);
+fmt::printf("Elapsed time: %.2f seconds", 1.23);
+\endrst
+*/
+inline int printf(CStringRef format, ArgList args)
+{
+    return fprintf(stdout, format, args);
 }
 
 /**
-  Fast integer formatter.
- */
-class FormatInt {
- private:
-  // Buffer should be large enough to hold all digits (digits10 + 1),
-  // a sign and a null character.
-  enum {BUFFER_SIZE = std::numeric_limits<ULongLong>::digits10 + 3};
-  mutable char buffer_[BUFFER_SIZE];
-  char *str_;
-
-  // Formats value in reverse and returns the number of digits.
-  char *format_decimal(ULongLong value) {
-    char *buffer_end = buffer_ + BUFFER_SIZE - 1;
-    while (value >= 100) {
-      // Integer division is slow so do it for a group of two digits instead
-      // of for every digit. The idea comes from the talk by Alexandrescu
-      // "Three Optimization Tips for C++". See speed-test for a comparison.
-      unsigned index = (value % 100) * 2;
-      value /= 100;
-      *--buffer_end = internal::Data::DIGITS[index + 1];
-      *--buffer_end = internal::Data::DIGITS[index];
-    }
-    if (value < 10) {
-      *--buffer_end = static_cast<char>('0' + value);
-      return buffer_end;
+Fast integer formatter.
+*/
+class FormatInt
+{
+private:
+    // Buffer should be large enough to hold all digits (digits10 + 1),
+    // a sign and a null character.
+    enum { BUFFER_SIZE = std::numeric_limits<ULongLong>::digits10 + 3 };
+    mutable char buffer_[BUFFER_SIZE];
+    char *str_;
+
+    // Formats value in reverse and returns the number of digits.
+    char *format_decimal(ULongLong value)
+    {
+        char *buffer_end = buffer_ + BUFFER_SIZE - 1;
+        while (value >= 100)
+        {
+            // Integer division is slow so do it for a group of two digits instead
+            // of for every digit. The idea comes from the talk by Alexandrescu
+            // "Three Optimization Tips for C++". See speed-test for a comparison.
+            unsigned index = static_cast<unsigned>((value % 100) * 2);
+            value /= 100;
+            *--buffer_end = internal::Data::DIGITS[index + 1];
+            *--buffer_end = internal::Data::DIGITS[index];
+        }
+        if (value < 10)
+        {
+            *--buffer_end = static_cast<char>('0' + value);
+            return buffer_end;
+        }
+        unsigned index = static_cast<unsigned>(value * 2);
+        *--buffer_end = internal::Data::DIGITS[index + 1];
+        *--buffer_end = internal::Data::DIGITS[index];
+        return buffer_end;
     }
-    unsigned index = static_cast<unsigned>(value * 2);
-    *--buffer_end = internal::Data::DIGITS[index + 1];
-    *--buffer_end = internal::Data::DIGITS[index];
-    return buffer_end;
-  }
 
-  void FormatSigned(LongLong value) {
-    ULongLong abs_value = static_cast<ULongLong>(value);
-    bool negative = value < 0;
-    if (negative)
-      abs_value = 0 - abs_value;
-    str_ = format_decimal(abs_value);
-    if (negative)
-      *--str_ = '-';
-  }
+    void FormatSigned(LongLong value)
+    {
+        ULongLong abs_value = static_cast<ULongLong>(value);
+        bool negative = value < 0;
+        if (negative)
+            abs_value = 0 - abs_value;
+        str_ = format_decimal(abs_value);
+        if (negative)
+            *--str_ = '-';
+    }
 
- public:
-  explicit FormatInt(int value) { FormatSigned(value); }
-  explicit FormatInt(long value) { FormatSigned(value); }
-  explicit FormatInt(LongLong value) { FormatSigned(value); }
-  explicit FormatInt(unsigned value) : str_(format_decimal(value)) {}
-  explicit FormatInt(unsigned long value) : str_(format_decimal(value)) {}
-  explicit FormatInt(ULongLong value) : str_(format_decimal(value)) {}
+public:
+    explicit FormatInt(int value)
+    {
+        FormatSigned(value);
+    }
+    explicit FormatInt(long value)
+    {
+        FormatSigned(value);
+    }
+    explicit FormatInt(LongLong value)
+    {
+        FormatSigned(value);
+    }
+    explicit FormatInt(unsigned value) : str_(format_decimal(value)) {}
+    explicit FormatInt(unsigned long value) : str_(format_decimal(value)) {}
+    explicit FormatInt(ULongLong value) : str_(format_decimal(value)) {}
 
-  /**
+    /**
     Returns the number of characters written to the output buffer.
-   */
-  std::size_t size() const { return buffer_ - str_ + BUFFER_SIZE - 1; }
+    */
+    std::size_t size() const
+    {
+        return buffer_ - str_ + BUFFER_SIZE - 1;
+    }
 
-  /**
+    /**
     Returns a pointer to the output buffer content. No terminating null
     character is appended.
-   */
-  const char *data() const { return str_; }
+    */
+    const char *data() const
+    {
+        return str_;
+    }
 
-  /**
+    /**
     Returns a pointer to the output buffer content with terminating null
     character appended.
-   */
-  const char *c_str() const {
-    buffer_[BUFFER_SIZE - 1] = '\0';
-    return str_;
-  }
+    */
+    const char *c_str() const
+    {
+        buffer_[BUFFER_SIZE - 1] = '\0';
+        return str_;
+    }
 
-  /**
+    /**
     \rst
     Returns the content of the output buffer as an ``std::string``.
     \endrst
-   */
-  std::string str() const { return std::string(str_, size()); }
+    */
+    std::string str() const
+    {
+        return std::string(str_, size());
+    }
 };
 
 // Formats a decimal integer value writing into buffer and returns
 // a pointer to the end of the formatted string. This function doesn't
 // write a terminating null character.
 template <typename T>
-inline void format_decimal(char *&buffer, T value) {
-  typename internal::IntTraits<T>::MainType abs_value = value;
-  if (internal::is_negative(value)) {
-    *buffer++ = '-';
-    abs_value = 0 - abs_value;
-  }
-  if (abs_value < 100) {
-    if (abs_value < 10) {
-      *buffer++ = static_cast<char>('0' + abs_value);
-      return;
-    }
-    unsigned index = static_cast<unsigned>(abs_value * 2);
-    *buffer++ = internal::Data::DIGITS[index];
-    *buffer++ = internal::Data::DIGITS[index + 1];
-    return;
-  }
-  unsigned num_digits = internal::count_digits(abs_value);
-  internal::format_decimal(buffer, abs_value, num_digits);
-  buffer += num_digits;
+inline void format_decimal(char *&buffer, T value)
+{
+    typename internal::IntTraits<T>::MainType abs_value = value;
+    if (internal::is_negative(value))
+    {
+        *buffer++ = '-';
+        abs_value = 0 - abs_value;
+    }
+    if (abs_value < 100)
+    {
+        if (abs_value < 10)
+        {
+            *buffer++ = static_cast<char>('0' + abs_value);
+            return;
+        }
+        unsigned index = static_cast<unsigned>(abs_value * 2);
+        *buffer++ = internal::Data::DIGITS[index];
+        *buffer++ = internal::Data::DIGITS[index + 1];
+        return;
+    }
+    unsigned num_digits = internal::count_digits(abs_value);
+    internal::format_decimal(buffer, abs_value, num_digits);
+    buffer += num_digits;
 }
 
 /**
-  \rst
-  Returns a named argument for formatting functions.
+\rst
+Returns a named argument for formatting functions.
 
-  **Example**::
+**Example**::
 
-    print("Elapsed time: {s:.2f} seconds", arg("s", 1.23));
+print("Elapsed time: {s:.2f} seconds", arg("s", 1.23));
 
-  \endrst
- */
+\endrst
+*/
 template <typename T>
-inline internal::NamedArg<char> arg(StringRef name, const T &arg) {
-  return internal::NamedArg<char>(name, arg);
+inline internal::NamedArg<char> arg(StringRef name, const T &arg)
+{
+    return internal::NamedArg<char>(name, arg);
 }
 
 template <typename T>
-inline internal::NamedArg<wchar_t> arg(WStringRef name, const T &arg) {
-  return internal::NamedArg<wchar_t>(name, arg);
+inline internal::NamedArg<wchar_t> arg(WStringRef name, const T &arg)
+{
+    return internal::NamedArg<wchar_t>(name, arg);
 }
 
 // The following two functions are deleted intentionally to disable
@@ -2898,7 +3817,8 @@ void arg(WStringRef, const internal::NamedArg<Char>&) FMT_DELETED_OR_UNDEFINED;
       const Args & ... args) { \
     typename fmt::internal::ArgArray<sizeof...(Args)>::Type array; \
     call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), \
-      fmt::internal::make_arg_list<Char>(array, args...)); \
+      fmt::internal::make_arg_list< \
+        fmt::BasicFormatter<Char> >(array, args...)); \
   }
 #else
 // Defines a wrapper for a function taking __VA_ARGS__ arguments
@@ -2907,7 +3827,8 @@ void arg(WStringRef, const internal::NamedArg<Char>&) FMT_DELETED_OR_UNDEFINED;
   template <FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
   inline ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__), \
       FMT_GEN(n, FMT_MAKE_ARG)) { \
-    fmt::internal::ArgArray<n>::Type arr = {FMT_GEN(n, FMT_MAKE_REF_##Char)}; \
+    fmt::internal::ArgArray<n>::Type arr; \
+    FMT_GEN(n, FMT_ASSIGN_##Char); \
     call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), fmt::ArgList( \
       fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), arr)); \
   }
@@ -2934,32 +3855,32 @@ void arg(WStringRef, const internal::NamedArg<Char>&) FMT_DELETED_OR_UNDEFINED;
 #endif  // FMT_USE_VARIADIC_TEMPLATES
 
 /**
-  \rst
-  Defines a variadic function with the specified return type, function name
-  and argument types passed as variable arguments to this macro.
+\rst
+Defines a variadic function with the specified return type, function name
+and argument types passed as variable arguments to this macro.
 
-  **Example**::
+**Example**::
 
-    void print_error(const char *file, int line, const char *format,
-                     fmt::ArgList args) {
-      fmt::print("{}: {}: ", file, line);
-      fmt::print(format, args);
-    }
-    FMT_VARIADIC(void, print_error, const char *, int, const char *)
+void print_error(const char *file, int line, const char *format,
+fmt::ArgList args) {
+fmt::print("{}: {}: ", file, line);
+fmt::print(format, args);
+}
+FMT_VARIADIC(void, print_error, const char *, int, const char *)
 
-  ``FMT_VARIADIC`` is used for compatibility with legacy C++ compilers that
-  don't implement variadic templates. You don't have to use this macro if
-  you don't need legacy compiler support and can use variadic templates
-  directly::
+``FMT_VARIADIC`` is used for compatibility with legacy C++ compilers that
+don't implement variadic templates. You don't have to use this macro if
+you don't need legacy compiler support and can use variadic templates
+directly::
 
-    template <typename... Args>
-    void print_error(const char *file, int line, const char *format,
-                     const Args & ... args) {
-      fmt::print("{}: {}: ", file, line);
-      fmt::print(format, args...);
-    }
-  \endrst
- */
+template <typename... Args>
+void print_error(const char *file, int line, const char *format,
+const Args & ... args) {
+fmt::print("{}: {}: ", file, line);
+fmt::print(format, args...);
+}
+\endrst
+*/
 #define FMT_VARIADIC(ReturnType, func, ...) \
   FMT_VARIADIC_(char, ReturnType, func, return func, __VA_ARGS__)
 
@@ -2971,41 +3892,465 @@ void arg(WStringRef, const internal::NamedArg<Char>&) FMT_DELETED_OR_UNDEFINED;
 #define FMT_CAPTURE_ARG_W_(id, index) ::fmt::arg(L###id, id)
 
 /**
-  \rst
-  Convenient macro to capture the arguments' names and values into several
-  ``fmt::arg(name, value)``.
+\rst
+Convenient macro to capture the arguments' names and values into several
+``fmt::arg(name, value)``.
 
-  **Example**::
+**Example**::
 
-    int x = 1, y = 2;
-    print("point: ({x}, {y})", FMT_CAPTURE(x, y));
-    // same as:
-    // print("point: ({x}, {y})", arg("x", x), arg("y", y));
+int x = 1, y = 2;
+print("point: ({x}, {y})", FMT_CAPTURE(x, y));
+// same as:
+// print("point: ({x}, {y})", arg("x", x), arg("y", y));
 
-  \endrst
- */
+\endrst
+*/
 #define FMT_CAPTURE(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_, __VA_ARGS__)
 
 #define FMT_CAPTURE_W(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_W_, __VA_ARGS__)
 
-namespace fmt {
+namespace fmt
+{
 FMT_VARIADIC(std::string, format, CStringRef)
 FMT_VARIADIC_W(std::wstring, format, WCStringRef)
 FMT_VARIADIC(void, print, CStringRef)
 FMT_VARIADIC(void, print, std::FILE *, CStringRef)
-FMT_VARIADIC(void, print, std::ostream &, CStringRef)
+
 FMT_VARIADIC(void, print_colored, Color, CStringRef)
 FMT_VARIADIC(std::string, sprintf, CStringRef)
+FMT_VARIADIC_W(std::wstring, sprintf, WCStringRef)
 FMT_VARIADIC(int, printf, CStringRef)
 FMT_VARIADIC(int, fprintf, std::FILE *, CStringRef)
+
+#if FMT_USE_IOSTREAMS
+/**
+\rst
+Prints formatted data to the stream *os*.
+
+**Example**::
+
+print(cerr, "Don't {}!", "panic");
+\endrst
+*/
+FMT_API void print(std::ostream &os, CStringRef format_str, ArgList args);
+FMT_VARIADIC(void, print, std::ostream &, CStringRef)
+#endif
+
+namespace internal
+{
+template <typename Char>
+inline bool is_name_start(Char c)
+{
+    return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c;
 }
 
+// Parses an unsigned integer advancing s to the end of the parsed input.
+// This function assumes that the first character of s is a digit.
+template <typename Char>
+int parse_nonnegative_int(const Char *&s)
+{
+    assert('0' <= *s && *s <= '9');
+    unsigned value = 0;
+    do
+    {
+        unsigned new_value = value * 10 + (*s++ - '0');
+        // Check if value wrapped around.
+        if (new_value < value)
+        {
+            value = (std::numeric_limits<unsigned>::max)();
+            break;
+        }
+        value = new_value;
+    }
+    while ('0' <= *s && *s <= '9');
+    // Convert to unsigned to prevent a warning.
+    unsigned max_int = (std::numeric_limits<int>::max)();
+    if (value > max_int)
+        FMT_THROW(FormatError("number is too big"));
+    return value;
+}
+
+inline void require_numeric_argument(const Arg &arg, char spec)
+{
+    if (arg.type > Arg::LAST_NUMERIC_TYPE)
+    {
+        std::string message =
+            fmt::format("format specifier '{}' requires numeric argument", spec);
+        FMT_THROW(fmt::FormatError(message));
+    }
+}
+
+template <typename Char>
+void check_sign(const Char *&s, const Arg &arg)
+{
+    char sign = static_cast<char>(*s);
+    require_numeric_argument(arg, sign);
+    if (arg.type == Arg::UINT || arg.type == Arg::ULONG_LONG)
+    {
+        FMT_THROW(FormatError(fmt::format(
+                                  "format specifier '{}' requires signed argument", sign)));
+    }
+    ++s;
+}
+}  // namespace internal
+
+template <typename Char>
+inline internal::Arg BasicFormatter<Char>::get_arg(
+    BasicStringRef<Char> arg_name, const char *&error)
+{
+    if (check_no_auto_index(error))
+    {
+        map_.init(args());
+        const internal::Arg *arg = map_.find(arg_name);
+        if (arg)
+            return *arg;
+        error = "argument not found";
+    }
+    return internal::Arg();
+}
+
+template <typename Char>
+inline internal::Arg BasicFormatter<Char>::parse_arg_index(const Char *&s)
+{
+    const char *error = 0;
+    internal::Arg arg = *s < '0' || *s > '9' ?
+                        next_arg(error) : get_arg(internal::parse_nonnegative_int(s), error);
+    if (error)
+    {
+        FMT_THROW(FormatError(
+                      *s != '}' && *s != ':' ? "invalid format string" : error));
+    }
+    return arg;
+}
+
+template <typename Char>
+inline internal::Arg BasicFormatter<Char>::parse_arg_name(const Char *&s)
+{
+    assert(internal::is_name_start(*s));
+    const Char *start = s;
+    Char c;
+    do
+    {
+        c = *++s;
+    }
+    while (internal::is_name_start(c) || ('0' <= c && c <= '9'));
+    const char *error = 0;
+    internal::Arg arg = get_arg(BasicStringRef<Char>(start, s - start), error);
+    if (error)
+        FMT_THROW(FormatError(error));
+    return arg;
+}
+
+// Should be after FormatSpec
+template <typename Char>
+const Char *BasicFormatter<Char>::format(
+    const Char *&format_str, const internal::Arg &arg)
+{
+    using internal::Arg;
+    const Char *s = format_str;
+    FormatSpec spec;
+    if (*s == ':')
+    {
+        if (arg.type == Arg::CUSTOM)
+        {
+            arg.custom.format(this, arg.custom.value, &s);
+            return s;
+        }
+        ++s;
+        // Parse fill and alignment.
+        if (Char c = *s)
+        {
+            const Char *p = s + 1;
+            spec.align_ = ALIGN_DEFAULT;
+            do
+            {
+                switch (*p)
+                {
+                case '<':
+                    spec.align_ = ALIGN_LEFT;
+                    break;
+                case '>':
+                    spec.align_ = ALIGN_RIGHT;
+                    break;
+                case '=':
+                    spec.align_ = ALIGN_NUMERIC;
+                    break;
+                case '^':
+                    spec.align_ = ALIGN_CENTER;
+                    break;
+                }
+                if (spec.align_ != ALIGN_DEFAULT)
+                {
+                    if (p != s)
+                    {
+                        if (c == '}') break;
+                        if (c == '{')
+                            FMT_THROW(FormatError("invalid fill character '{'"));
+                        s += 2;
+                        spec.fill_ = c;
+                    }
+                    else ++s;
+                    if (spec.align_ == ALIGN_NUMERIC)
+                        require_numeric_argument(arg, '=');
+                    break;
+                }
+            }
+            while (--p >= s);
+        }
+
+        // Parse sign.
+        switch (*s)
+        {
+        case '+':
+            check_sign(s, arg);
+            spec.flags_ |= SIGN_FLAG | PLUS_FLAG;
+            break;
+        case '-':
+            check_sign(s, arg);
+            spec.flags_ |= MINUS_FLAG;
+            break;
+        case ' ':
+            check_sign(s, arg);
+            spec.flags_ |= SIGN_FLAG;
+            break;
+        }
+
+        if (*s == '#')
+        {
+            require_numeric_argument(arg, '#');
+            spec.flags_ |= HASH_FLAG;
+            ++s;
+        }
+
+        // Parse zero flag.
+        if (*s == '0')
+        {
+            require_numeric_argument(arg, '0');
+            spec.align_ = ALIGN_NUMERIC;
+            spec.fill_ = '0';
+            ++s;
+        }
+
+        // Parse width.
+        if ('0' <= *s && *s <= '9')
+        {
+            spec.width_ = internal::parse_nonnegative_int(s);
+        }
+        else if (*s == '{')
+        {
+            ++s;
+            Arg width_arg = internal::is_name_start(*s) ?
+                            parse_arg_name(s) : parse_arg_index(s);
+            if (*s++ != '}')
+                FMT_THROW(FormatError("invalid format string"));
+            ULongLong value = 0;
+            switch (width_arg.type)
+            {
+            case Arg::INT:
+                if (width_arg.int_value < 0)
+                    FMT_THROW(FormatError("negative width"));
+                value = width_arg.int_value;
+                break;
+            case Arg::UINT:
+                value = width_arg.uint_value;
+                break;
+            case Arg::LONG_LONG:
+                if (width_arg.long_long_value < 0)
+                    FMT_THROW(FormatError("negative width"));
+                value = width_arg.long_long_value;
+                break;
+            case Arg::ULONG_LONG:
+                value = width_arg.ulong_long_value;
+                break;
+            default:
+                FMT_THROW(FormatError("width is not integer"));
+            }
+            if (value >(std::numeric_limits<int>::max)())
+                FMT_THROW(FormatError("number is too big"));
+            spec.width_ = static_cast<int>(value);
+        }
+
+        // Parse precision.
+        if (*s == '.')
+        {
+            ++s;
+            spec.precision_ = 0;
+            if ('0' <= *s && *s <= '9')
+            {
+                spec.precision_ = internal::parse_nonnegative_int(s);
+            }
+            else if (*s == '{')
+            {
+                ++s;
+                Arg precision_arg = internal::is_name_start(*s) ?
+                                    parse_arg_name(s) : parse_arg_index(s);
+                if (*s++ != '}')
+                    FMT_THROW(FormatError("invalid format string"));
+                ULongLong value = 0;
+                switch (precision_arg.type)
+                {
+                case Arg::INT:
+                    if (precision_arg.int_value < 0)
+                        FMT_THROW(FormatError("negative precision"));
+                    value = precision_arg.int_value;
+                    break;
+                case Arg::UINT:
+                    value = precision_arg.uint_value;
+                    break;
+                case Arg::LONG_LONG:
+                    if (precision_arg.long_long_value < 0)
+                        FMT_THROW(FormatError("negative precision"));
+                    value = precision_arg.long_long_value;
+                    break;
+                case Arg::ULONG_LONG:
+                    value = precision_arg.ulong_long_value;
+                    break;
+                default:
+                    FMT_THROW(FormatError("precision is not integer"));
+                }
+                if (value >(std::numeric_limits<int>::max)())
+                    FMT_THROW(FormatError("number is too big"));
+                spec.precision_ = static_cast<int>(value);
+            }
+            else
+            {
+                FMT_THROW(FormatError("missing precision specifier"));
+            }
+            if (arg.type <= Arg::LAST_INTEGER_TYPE || arg.type == Arg::POINTER)
+            {
+                FMT_THROW(FormatError(
+                              fmt::format("precision not allowed in {} format specifier",
+                                          arg.type == Arg::POINTER ? "pointer" : "integer")));
+            }
+        }
+
+        // Parse type.
+        if (*s != '}' && *s)
+            spec.type_ = static_cast<char>(*s++);
+    }
+
+    if (*s++ != '}')
+        FMT_THROW(FormatError("missing '}' in format string"));
+
+    // Format argument.
+    internal::BasicArgFormatter<Char>(*this, spec, s - 1).visit(arg);
+    return s;
+}
+
+template <typename Char>
+void BasicFormatter<Char>::format(BasicCStringRef<Char> format_str)
+{
+    const Char *s = format_str.c_str();
+    const Char *start = s;
+    while (*s)
+    {
+        Char c = *s++;
+        if (c != '{' && c != '}') continue;
+        if (*s == c)
+        {
+            write(writer_, start, s);
+            start = ++s;
+            continue;
+        }
+        if (c == '}')
+            FMT_THROW(FormatError("unmatched '}' in format string"));
+        write(writer_, start, s - 1);
+        internal::Arg arg = internal::is_name_start(*s) ?
+                            parse_arg_name(s) : parse_arg_index(s);
+        start = s = format(s, arg);
+    }
+    write(writer_, start, s);
+}
+}  // namespace fmt
+
+#if FMT_USE_USER_DEFINED_LITERALS
+namespace fmt
+{
+namespace internal
+{
+
+template <typename Char>
+struct UdlFormat
+{
+    const Char *str;
+
+    template <typename... Args>
+    auto operator()(Args && ... args) const
+    -> decltype(format(str, std::forward<Args>(args)...))
+    {
+        return format(str, std::forward<Args>(args)...);
+    }
+};
+
+template <typename Char>
+struct UdlArg
+{
+    const Char *str;
+
+    template <typename T>
+    NamedArg<Char> operator=(T &&value) const
+    {
+        return { str, std::forward<T>(value) };
+    }
+};
+
+} // namespace internal
+
+inline namespace literals
+{
+
+/**
+\rst
+C++11 literal equivalent of :func:`fmt::format`.
+
+**Example**::
+
+using namespace fmt::literals;
+std::string message = "The answer is {}"_format(42);
+\endrst
+*/
+inline internal::UdlFormat<char>
+operator"" _format(const char *s, std::size_t)
+{
+    return { s };
+}
+inline internal::UdlFormat<wchar_t>
+operator"" _format(const wchar_t *s, std::size_t)
+{
+    return { s };
+}
+
+/**
+\rst
+C++11 literal equivalent of :func:`fmt::arg`.
+
+**Example**::
+
+using namespace fmt::literals;
+print("Elapsed time: {s:.2f} seconds", "s"_a=1.23);
+\endrst
+*/
+inline internal::UdlArg<char>
+operator"" _a(const char *s, std::size_t)
+{
+    return { s };
+}
+inline internal::UdlArg<wchar_t>
+operator"" _a(const wchar_t *s, std::size_t)
+{
+    return { s };
+}
+
+} // inline namespace literals
+} // namespace fmt
+#endif // FMT_USE_USER_DEFINED_LITERALS
+
 // Restore warnings.
 #if FMT_GCC_VERSION >= 406
 # pragma GCC diagnostic pop
 #endif
 
-#ifdef __clang__
+#if defined(__clang__) && !defined(__INTEL_COMPILER)
 # pragma clang diagnostic pop
 #endif
 
diff --git a/include/spdlog/details/line_logger.h b/include/spdlog/details/line_logger.h
deleted file mode 100644
index 80d7cc1..0000000
--- a/include/spdlog/details/line_logger.h
+++ /dev/null
@@ -1,221 +0,0 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#pragma once
-#include <type_traits>
-#include "../common.h"
-#include "../logger.h"
-
-// Line logger class - aggregates operator<< calls to fast ostream
-// and logs upon destruction
-
-namespace spdlog
-{
-namespace details
-{
-class line_logger
-{
-public:
-    line_logger(logger* callback_logger, level::level_enum msg_level, bool enabled):
-        _callback_logger(callback_logger),
-        _log_msg(msg_level),
-        _enabled(enabled)
-    {}
-
-    // No copy intended. Only move
-    line_logger(const line_logger& other) = delete;
-    line_logger& operator=(const line_logger&) = delete;
-    line_logger& operator=(line_logger&&) = delete;
-
-
-    line_logger(line_logger&& other) :
-        _callback_logger(other._callback_logger),
-        _log_msg(std::move(other._log_msg)),
-        _enabled(other._enabled)
-    {
-        other.disable();
-    }
-
-    //Log the log message using the callback logger
-    ~line_logger()
-    {
-        if (_enabled)
-        {
-#ifndef SPDLOG_NO_NAME
-            _log_msg.logger_name = _callback_logger->name();
-#endif
-#ifndef SPDLOG_NO_DATETIME
-            _log_msg.time = os::now();
-#endif
-
-#ifndef SPDLOG_NO_THREAD_ID
-            _log_msg.thread_id = os::thread_id();
-#endif
-            _callback_logger->_log_msg(_log_msg);
-        }
-    }
-
-    //
-    // Support for format string with variadic args
-    //
-
-
-    void write(const char* what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-    }
-
-    template <typename... Args>
-    void write(const char* fmt, const Args&... args)
-    {
-        if (!_enabled)
-            return;
-        try
-        {
-            _log_msg.raw.write(fmt, args...);
-        }
-        catch (const fmt::FormatError& e)
-        {
-            throw spdlog_ex(fmt::format("formatting error while processing format string '{}': {}", fmt, e.what()));
-        }
-    }
-
-
-    //
-    // Support for operator<<
-    //
-    line_logger& operator<<(const char* what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-        return *this;
-    }
-
-    line_logger& operator<<(const std::string& what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-        return *this;
-    }
-
-    line_logger& operator<<(int what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-        return *this;
-    }
-
-    line_logger& operator<<(unsigned int what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-        return *this;
-    }
-
-
-    line_logger& operator<<(long what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-        return *this;
-    }
-
-    line_logger& operator<<(unsigned long what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-        return *this;
-    }
-
-    line_logger& operator<<(long long what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-        return *this;
-    }
-
-    line_logger& operator<<(unsigned long long what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-        return *this;
-    }
-
-    line_logger& operator<<(double what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-        return *this;
-    }
-
-    line_logger& operator<<(long double what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-        return *this;
-    }
-
-    line_logger& operator<<(float what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-        return *this;
-    }
-
-    line_logger& operator<<(char what)
-    {
-        if (_enabled)
-            _log_msg.raw << what;
-        return *this;
-    }
-
-    //Support user types which implements operator<<
-    template<typename T>
-    line_logger& operator<<(const T& what)
-    {
-        if (_enabled)
-            _log_msg.raw.write("{}", what);
-        return *this;
-    }
-
-
-    void disable()
-    {
-        _enabled = false;
-    }
-
-    bool is_enabled() const
-    {
-        return _enabled;
-    }
-
-
-private:
-    logger* _callback_logger;
-    log_msg _log_msg;
-    bool _enabled;
-};
-} //Namespace details
-} // Namespace spdlog
diff --git a/include/spdlog/details/line_logger_fwd.h b/include/spdlog/details/line_logger_fwd.h
new file mode 100644
index 0000000..a8bc58f
--- /dev/null
+++ b/include/spdlog/details/line_logger_fwd.h
@@ -0,0 +1,78 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+#pragma once
+
+#include <spdlog/common.h>
+#include <spdlog/details/log_msg.h>
+
+#include <string>
+
+// Line logger class - aggregates operator<< calls to fast ostream
+// and logs upon destruction
+
+namespace spdlog
+{
+
+// Forward declaration
+class logger;
+
+namespace details
+{
+class line_logger
+{
+public:
+    line_logger(logger* callback_logger, level::level_enum msg_level, bool enabled);
+
+    // No copy intended. Only move
+    line_logger(const line_logger& other) = delete;
+    line_logger& operator=(const line_logger&) = delete;
+    line_logger& operator=(line_logger&&) = delete;
+
+
+    line_logger(line_logger&& other);
+
+    //Log the log message using the callback logger
+    ~line_logger();
+
+    //
+    // Support for format string with variadic args
+    //
+
+
+    void write(const char* what);
+
+    template <typename... Args>
+    void write(const char* fmt, const Args&... args);
+
+    //
+    // Support for operator<<
+    //
+    line_logger& operator<<(const char* what);
+    line_logger& operator<<(const std::string& what);
+    line_logger& operator<<(int what);
+    line_logger& operator<<(unsigned int what);
+    line_logger& operator<<(long what);
+    line_logger& operator<<(unsigned long what);
+    line_logger& operator<<(long long what);
+    line_logger& operator<<(unsigned long long what);
+    line_logger& operator<<(double what);
+    line_logger& operator<<(long double what);
+    line_logger& operator<<(float what);
+    line_logger& operator<<(char what);
+    //Support user types which implements operator<<
+    template<typename T>
+    line_logger& operator<<(const T& what);
+
+    void disable();
+    bool is_enabled() const;
+
+private:
+    logger* _callback_logger;
+    log_msg _log_msg;
+    bool _enabled;
+};
+} //Namespace details
+} // Namespace spdlog
+
diff --git a/include/spdlog/details/line_logger_impl.h b/include/spdlog/details/line_logger_impl.h
new file mode 100644
index 0000000..d61225a
--- /dev/null
+++ b/include/spdlog/details/line_logger_impl.h
@@ -0,0 +1,185 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+#pragma once
+#include <type_traits>
+
+#include <spdlog/details/line_logger_fwd.h>
+#include <spdlog/common.h>
+#include <spdlog/logger.h>
+
+#include <string>
+#include <utility>
+
+// Line logger class - aggregates operator<< calls to fast ostream
+// and logs upon destruction
+
+inline spdlog::details::line_logger::line_logger(logger* callback_logger, level::level_enum msg_level, bool enabled):
+    _callback_logger(callback_logger),
+    _log_msg(msg_level),
+    _enabled(enabled)
+{}
+
+inline spdlog::details::line_logger::line_logger(line_logger&& other) :
+    _callback_logger(other._callback_logger),
+    _log_msg(std::move(other._log_msg)),
+    _enabled(other._enabled)
+{
+    other.disable();
+}
+
+//Log the log message using the callback logger
+inline spdlog::details::line_logger::~line_logger()
+{
+    if (_enabled)
+    {
+#ifndef SPDLOG_NO_NAME
+        _log_msg.logger_name = _callback_logger->name();
+#endif
+#ifndef SPDLOG_NO_DATETIME
+        _log_msg.time = os::now();
+#endif
+
+#ifndef SPDLOG_NO_THREAD_ID
+        _log_msg.thread_id = os::thread_id();
+#endif
+        _callback_logger->_log_msg(_log_msg);
+    }
+}
+
+//
+// Support for format string with variadic args
+//
+
+
+inline void spdlog::details::line_logger::write(const char* what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+}
+
+template <typename... Args>
+inline void spdlog::details::line_logger::write(const char* fmt, const Args&... args)
+{
+    if (!_enabled)
+        return;
+    try
+    {
+        _log_msg.raw.write(fmt, args...);
+    }
+    catch (const fmt::FormatError& e)
+    {
+        throw spdlog_ex(fmt::format("formatting error while processing format string '{}': {}", fmt, e.what()));
+    }
+}
+
+
+//
+// Support for operator<<
+//
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(const char* what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+    return *this;
+}
+
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(const std::string& what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+    return *this;
+}
+
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(int what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+    return *this;
+}
+
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(unsigned int what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+    return *this;
+}
+
+
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(long what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+    return *this;
+}
+
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(unsigned long what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+    return *this;
+}
+
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(long long what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+    return *this;
+}
+
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(unsigned long long what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+    return *this;
+}
+
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(double what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+    return *this;
+}
+
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(long double what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+    return *this;
+}
+
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(float what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+    return *this;
+}
+
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(char what)
+{
+    if (_enabled)
+        _log_msg.raw << what;
+    return *this;
+}
+
+//Support user types which implements operator<<
+template<typename T>
+inline spdlog::details::line_logger& spdlog::details::line_logger::operator<<(const T& what)
+{
+    if (_enabled)
+        _log_msg.raw.write("{}", what);
+    return *this;
+}
+
+
+inline void spdlog::details::line_logger::disable()
+{
+    _enabled = false;
+}
+
+inline bool spdlog::details::line_logger::is_enabled() const
+{
+    return _enabled;
+}
+
diff --git a/include/spdlog/details/log_msg.h b/include/spdlog/details/log_msg.h
index bf58aca..0d50b68 100644
--- a/include/spdlog/details/log_msg.h
+++ b/include/spdlog/details/log_msg.h
@@ -1,32 +1,15 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
-#include <thread>
-#include "../common.h"
-#include "./format.h"
+#include <spdlog/common.h>
+#include <spdlog/details/format.h>
+
+#include <string>
+#include <utility>
 
 namespace spdlog
 {
diff --git a/include/spdlog/details/logger_impl.h b/include/spdlog/details/logger_impl.h
index d658ac0..c096382 100644
--- a/include/spdlog/details/logger_impl.h
+++ b/include/spdlog/details/logger_impl.h
@@ -1,34 +1,15 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#pragma once
 //
-// Logger implementation
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
 //
 
-#include "./line_logger.h"
+#pragma once
+
+#include <spdlog/logger.h>
 
+#include <atomic>
+#include <memory>
+#include <string>
 
 // create logger with given name, sinks and the default pattern formatter
 // all other ctors will call this one
@@ -50,7 +31,8 @@ inline spdlog::logger::logger(const std::string& logger_name, sinks_init_list si
 
 // ctor with single sink
 inline spdlog::logger::logger(const std::string& logger_name, spdlog::sink_ptr single_sink) :
-    logger(logger_name, {
+    logger(logger_name,
+{
     single_sink
 }) {}
 
@@ -314,7 +296,8 @@ inline void spdlog::logger::_set_formatter(formatter_ptr msg_formatter)
     _formatter = msg_formatter;
 }
 
-inline void spdlog::logger::flush() {
+inline void spdlog::logger::flush()
+{
     for (auto& sink : _sinks)
         sink->flush();
-}
\ No newline at end of file
+}
diff --git a/include/spdlog/details/mpmc_bounded_q.h b/include/spdlog/details/mpmc_bounded_q.h
index 7cbcfd7..ad14d6f 100644
--- a/include/spdlog/details/mpmc_bounded_q.h
+++ b/include/spdlog/details/mpmc_bounded_q.h
@@ -36,33 +36,17 @@ should not be interpreted as representing official policies, either expressed or
 /*
 The code in its current form adds the license below:
 
-spdlog - an extremely fast and easy to use c++11 logging library.
-Copyright (c) 2014 Gabi Melman.
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+Copyright(c) 2015 Gabi Melman.
+Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
 */
 
 #pragma once
 
+#include <spdlog/common.h>
+
 #include <atomic>
-#include "../common.h"
+#include <utility>
 
 namespace spdlog
 {
diff --git a/include/spdlog/details/null_mutex.h b/include/spdlog/details/null_mutex.h
index ebb56a5..19e90bf 100644
--- a/include/spdlog/details/null_mutex.h
+++ b/include/spdlog/details/null_mutex.h
@@ -1,26 +1,7 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
diff --git a/include/spdlog/details/os.h b/include/spdlog/details/os.h
index 5748033..ac05a3b 100644
--- a/include/spdlog/details/os.h
+++ b/include/spdlog/details/os.h
@@ -1,37 +1,21 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 #pragma once
-#include<string>
-#include<cstdio>
-#include<ctime>
+
+#include <spdlog/common.h>
+
+#include <cstdio>
+#include <ctime>
+#include <functional>
+#include <string>
 
 #ifdef _WIN32
 # ifndef WIN32_LEAN_AND_MEAN
 #  define WIN32_LEAN_AND_MEAN
 # endif
-# include <Windows.h>
+# include <windows.h>
 
 #ifdef __MINGW32__
 #include <share.h>
@@ -39,13 +23,13 @@
 
 #elif __linux__
 #include <sys/syscall.h> //Use gettid() syscall under linux to get thread id
+#include <sys/stat.h>
 #include <unistd.h>
+#include <chrono>
 #else
 #include <thread>
 #endif
 
-#include "../common.h"
-
 namespace spdlog
 {
 namespace details
@@ -63,6 +47,7 @@ inline spdlog::log_clock::time_point now()
                std::chrono::duration_cast<typename log_clock::duration>(
                    std::chrono::seconds(ts.tv_sec) + std::chrono::nanoseconds(ts.tv_nsec)));
 
+
 #else
     return log_clock::now();
 #endif
@@ -157,20 +142,52 @@ inline int fopen_s(FILE** fp, const std::string& filename, const char* mode)
     return *fp == nullptr;
 #endif
 
+}
+
+
+//Return if file exists
+inline bool file_exists(const std::string& filename)
+{
+#ifdef _WIN32
+    auto attribs = GetFileAttributesA(filename.c_str());
+    return (attribs != INVALID_FILE_ATTRIBUTES && !(attribs & FILE_ATTRIBUTE_DIRECTORY));
+#elif __linux__
+    struct stat buffer;
+    return (stat (filename.c_str(), &buffer) == 0);
+#else
+    auto *file = fopen(filename.c_str(), "r");
+    if (file != nullptr)
+    {
+        fclose(file);
+        return true;
+    }
+    return false;
+
+#endif
 
 }
 
-//Return utc offset in minutes or -1 on failure
+//Return utc offset in minutes or throw spdlog_ex on failure
 inline int utc_minutes_offset(const std::tm& tm = details::os::localtime())
 {
 
 #ifdef _WIN32
-    (void)tm; // avoid unused param warning
+#if _WIN32_WINNT < _WIN32_WINNT_WS08
+    TIME_ZONE_INFORMATION tzinfo;
+    auto rv = GetTimeZoneInformation(&tzinfo);
+#else
     DYNAMIC_TIME_ZONE_INFORMATION tzinfo;
     auto rv = GetDynamicTimeZoneInformation(&tzinfo);
-    if (!rv)
-        return -1;
-    return -1 * (tzinfo.Bias + tzinfo.DaylightBias);
+#endif
+    if (rv == TIME_ZONE_ID_INVALID)
+        throw spdlog::spdlog_ex("Failed getting timezone info. Last error: " + GetLastError());
+
+    int offset = -tzinfo.Bias;
+    if (tm.tm_isdst)
+        offset -= tzinfo.DaylightBias;
+    else
+        offset -= tzinfo.StandardBias;
+    return offset;
 #else
     return static_cast<int>(tm.tm_gmtoff / 60);
 #endif
@@ -183,6 +200,9 @@ inline size_t thread_id()
 #ifdef _WIN32
     return  static_cast<size_t>(::GetCurrentThreadId());
 #elif __linux__
+# if defined(__ANDROID__) && defined(__ANDROID_API__) && (__ANDROID_API__ < 21)
+#  define SYS_gettid __NR_gettid
+# endif
     return  static_cast<size_t>(syscall(SYS_gettid));
 #else //Default to standard C++11 (OSX and other Unix)
     return static_cast<size_t>(std::hash<std::thread::id>()(std::this_thread::get_id()));
diff --git a/include/spdlog/details/pattern_formatter_impl.h b/include/spdlog/details/pattern_formatter_impl.h
index 137037e..3965b83 100644
--- a/include/spdlog/details/pattern_formatter_impl.h
+++ b/include/spdlog/details/pattern_formatter_impl.h
@@ -1,39 +1,23 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
-#include <string>
+#include <spdlog/formatter.h>
+#include <spdlog/details/log_msg.h>
+#include <spdlog/details/os.h>
+#include <spdlog/details/format.h>
+
 #include <chrono>
+#include <ctime>
 #include <memory>
-#include <vector>
+#include <mutex>
+#include <string>
 #include <thread>
-
-
-#include "../formatter.h"
-#include "./log_msg.h"
-#include "./os.h"
+#include <utility>
+#include <vector>
 
 namespace spdlog
 {
@@ -225,7 +209,7 @@ class I_formatter :public flag_formatter
     }
 };
 
-// ninutes 0-59
+// minutes 0-59
 class M_formatter :public flag_formatter
 {
     void format(details::log_msg& msg, const std::tm& tm_time) override
@@ -336,8 +320,10 @@ public:
 
         int h = total_minutes / 60;
         int m = total_minutes % 60;
-        char sign = h >= 0 ? '+' : '-';
-        msg.formatted << sign;
+        if (h >= 0) //minus sign will be printed anyway if negative
+        {
+            msg.formatted << '+';
+        }
         pad_n_join(msg.formatted, h, m, ':');
     }
 private:
diff --git a/include/spdlog/details/registry.h b/include/spdlog/details/registry.h
index fd8e4be..78a47fe 100644
--- a/include/spdlog/details/registry.h
+++ b/include/spdlog/details/registry.h
@@ -1,42 +1,26 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
+
 // Loggers registy of unique name->logger pointer
-// An attempt to create a logger with an alreasy existing name will be ignored
+// An attempt to create a logger with an already existing name will be ignored
 // If user requests a non existing logger, nullptr will be returned
 // This class is thread safe
 
-#include <string>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/logger.h>
+#include <spdlog/async_logger.h>
+#include <spdlog/common.h>
+
+#include <chrono>
+#include <functional>
+#include <memory>
 #include <mutex>
+#include <string>
 #include <unordered_map>
-#include <functional>
-
-#include "./null_mutex.h"
-#include "../logger.h"
-#include "../async_logger.h"
-#include "../common.h"
 
 namespace spdlog
 {
@@ -49,7 +33,9 @@ public:
     void register_logger(std::shared_ptr<logger> logger)
     {
         std::lock_guard<Mutex> lock(_mutex);
-        register_logger_impl(logger);
+		auto logger_name = logger->name();
+		throw_if_exists(logger_name);		
+		_loggers[logger_name] = logger;
     }
 
 
@@ -62,13 +48,10 @@ public:
 
     template<class It>
     std::shared_ptr<logger> create(const std::string& logger_name, const It& sinks_begin, const It& sinks_end)
-    {
-
-        std::shared_ptr<logger> new_logger;
-
+    {        
         std::lock_guard<Mutex> lock(_mutex);
-
-
+		throw_if_exists(logger_name);
+		std::shared_ptr<logger> new_logger;
         if (_async_mode)
             new_logger = std::make_shared<async_logger>(logger_name, sinks_begin, sinks_end, _async_q_size, _overflow_policy, _worker_warmup_cb, _flush_interval_ms);
         else
@@ -78,7 +61,8 @@ public:
             new_logger->set_formatter(_formatter);
 
         new_logger->set_level(_level);
-        register_logger_impl(new_logger);
+		//Add to registry
+		_loggers[logger_name] = new_logger;
         return new_logger;
     }
 
@@ -150,17 +134,16 @@ public:
         return s_instance;
     }
 
-private:
-    void register_logger_impl(std::shared_ptr<logger> logger)
-    {
-        auto logger_name = logger->name();
-        if (_loggers.find(logger_name) != std::end(_loggers))
-            throw spdlog_ex("logger with name " + logger_name + " already exists");
-        _loggers[logger->name()] = logger;
-    }
-    registry_t<Mutex>(){}
+private:    
+    registry_t<Mutex>() {}
     registry_t<Mutex>(const registry_t<Mutex>&) = delete;
     registry_t<Mutex>& operator=(const registry_t<Mutex>&) = delete;
+
+	void throw_if_exists(const std::string &logger_name)
+	{
+		if (_loggers.find(logger_name) != _loggers.end())
+			throw spdlog_ex("logger with name '" + logger_name + "' already exists");
+	}
     Mutex _mutex;
     std::unordered_map <std::string, std::shared_ptr<logger>> _loggers;
     formatter_ptr _formatter;
diff --git a/include/spdlog/details/spdlog_impl.h b/include/spdlog/details/spdlog_impl.h
index cfd6f82..e3c966d 100644
--- a/include/spdlog/details/spdlog_impl.h
+++ b/include/spdlog/details/spdlog_impl.h
@@ -1,36 +1,23 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
 //
 // Global registry functions
 //
-#include "registry.h"
-#include "../sinks/file_sinks.h"
-#include "../sinks/stdout_sinks.h"
-#include "../sinks/syslog_sink.h"
+#include <spdlog/spdlog.h>
+#include <spdlog/details/registry.h>
+#include <spdlog/sinks/file_sinks.h>
+#include <spdlog/sinks/stdout_sinks.h>
+#include <spdlog/sinks/syslog_sink.h>
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <string>
 
 inline void spdlog::register_logger(std::shared_ptr<logger> logger)
 {
@@ -90,7 +77,7 @@ inline std::shared_ptr<spdlog::logger> spdlog::stderr_logger_st(const std::strin
     return details::registry::instance().create(logger_name, spdlog::sinks::stderr_sink_st::instance());
 }
 
-#ifdef __linux__
+#if defined(__linux__) || defined(__APPLE__)
 // Create syslog logger
 inline std::shared_ptr<spdlog::logger> spdlog::syslog_logger(const std::string& logger_name, const std::string& syslog_ident, int syslog_option)
 {
@@ -108,7 +95,7 @@ inline std::shared_ptr<spdlog::logger> spdlog::create(const std::string& logger_
 
 
 template <typename Sink, typename... Args>
-inline std::shared_ptr<spdlog::logger> spdlog::create(const std::string& logger_name, const Args&... args)
+inline std::shared_ptr<spdlog::logger> spdlog::create(const std::string& logger_name, Args... args)
 {
     sink_ptr sink = std::make_shared<Sink>(args...);
     return details::registry::instance().create(logger_name, { sink });
diff --git a/include/spdlog/formatter.h b/include/spdlog/formatter.h
index 35ea041..0ffcec0 100644
--- a/include/spdlog/formatter.h
+++ b/include/spdlog/formatter.h
@@ -1,29 +1,16 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
 #pragma once
 
-#include "details/log_msg.h"
+#include <spdlog/details/log_msg.h>
+
+#include <vector>
+#include <string>
+#include <memory>
+
 namespace spdlog
 {
 namespace details
@@ -54,5 +41,5 @@ private:
 };
 }
 
-#include "details/pattern_formatter_impl.h"
+#include <spdlog/details/pattern_formatter_impl.h>
 
diff --git a/include/spdlog/logger.h b/include/spdlog/logger.h
index 7a5a31a..ebd2dd0 100644
--- a/include/spdlog/logger.h
+++ b/include/spdlog/logger.h
@@ -1,26 +1,7 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
@@ -31,19 +12,18 @@
 // 2. Format the message using the formatter function
 // 3. Pass the formatted message to its sinks to performa the actual logging
 
-#include<vector>
-#include<memory>
-#include "sinks/base_sink.h"
-#include "common.h"
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/common.h>
+#include <spdlog/details/line_logger_fwd.h>
+
+#include <vector>
+#include <memory>
+#include <atomic>
+#include <string>
 
 namespace spdlog
 {
 
-namespace details
-{
-class line_logger;
-}
-
 class logger
 {
 public:
@@ -107,7 +87,7 @@ public:
     void set_pattern(const std::string&);
     void set_formatter(formatter_ptr);
 
-    void flush();
+    virtual void flush();
 
 protected:
     virtual void _log_msg(details::log_msg&);
@@ -129,4 +109,6 @@ protected:
 };
 }
 
-#include "./details/logger_impl.h"
+#include <spdlog/details/logger_impl.h>
+#include <spdlog/details/line_logger_impl.h>
+
diff --git a/include/spdlog/sinks/android_sink.h b/include/spdlog/sinks/android_sink.h
new file mode 100644
index 0000000..885f78d
--- /dev/null
+++ b/include/spdlog/sinks/android_sink.h
@@ -0,0 +1,92 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#if defined(__ANDROID__)
+
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/details/null_mutex.h>
+
+#include <android/log.h>
+
+#include <mutex>
+#include <string>
+
+namespace spdlog
+{
+namespace sinks
+{
+/*
+* Android sink (logging using __android_log_write)
+*/
+template<class Mutex>
+class base_android_sink : public base_sink < Mutex >
+{
+public:
+    explicit base_android_sink(std::string tag="spdlog"): _tag(tag)
+    {
+    }
+
+    void flush() override
+    {
+    }
+
+protected:
+    void _sink_it(const details::log_msg& msg) override
+    {
+        const android_LogPriority priority = convert_to_android(msg.level);
+        const int expected_size = msg.formatted.size();
+        const int size = __android_log_write(
+                             priority, _tag.c_str(), msg.formatted.c_str()
+                         );
+        if (size > expected_size)
+        {
+            // Will write a little bit more than original message
+        }
+        else
+        {
+            throw spdlog_ex("Send to Android logcat failed");
+        }
+    }
+
+private:
+    static android_LogPriority convert_to_android(spdlog::level::level_enum level)
+    {
+        switch(level)
+        {
+        case spdlog::level::trace:
+            return ANDROID_LOG_VERBOSE;
+        case spdlog::level::debug:
+            return ANDROID_LOG_DEBUG;
+        case spdlog::level::info:
+            return ANDROID_LOG_INFO;
+        case spdlog::level::notice:
+            return ANDROID_LOG_INFO;
+        case spdlog::level::warn:
+            return ANDROID_LOG_WARN;
+        case spdlog::level::err:
+            return ANDROID_LOG_ERROR;
+        case spdlog::level::critical:
+            return ANDROID_LOG_FATAL;
+        case spdlog::level::alert:
+            return ANDROID_LOG_FATAL;
+        case spdlog::level::emerg:
+            return ANDROID_LOG_FATAL;
+        default:
+            throw spdlog_ex("Incorrect level value");
+        }
+    }
+
+    std::string _tag;
+};
+
+typedef base_android_sink<std::mutex> android_sink_mt;
+typedef base_android_sink<details::null_mutex> android_sink_st;
+
+}
+}
+
+#endif
diff --git a/include/spdlog/sinks/base_sink.h b/include/spdlog/sinks/base_sink.h
index 12d63ea..615bb6f 100644
--- a/include/spdlog/sinks/base_sink.h
+++ b/include/spdlog/sinks/base_sink.h
@@ -1,26 +1,7 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 //
@@ -29,14 +10,12 @@
 // all locking is taken care of here so no locking needed by the implementors..
 //
 
-#include<string>
-#include<mutex>
-#include<atomic>
-#include "./sink.h"
-#include "../formatter.h"
-#include "../common.h"
-#include "../details/log_msg.h"
+#include <spdlog/sinks/sink.h>
+#include <spdlog/formatter.h>
+#include <spdlog/common.h>
+#include <spdlog/details/log_msg.h>
 
+#include <mutex>
 
 namespace spdlog
 {
diff --git a/include/spdlog/sinks/dist_sink.h b/include/spdlog/sinks/dist_sink.h
new file mode 100644
index 0000000..0e7cfc1
--- /dev/null
+++ b/include/spdlog/sinks/dist_sink.h
@@ -0,0 +1,72 @@
+//
+// Copyright (c) 2015 David Schury, Gabi Melman
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include <spdlog/details/log_msg.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/sinks/sink.h>
+
+#include <algorithm>
+#include <memory>
+#include <mutex>
+#include <vector>
+
+namespace spdlog
+{
+namespace sinks
+{
+template<class Mutex>
+class dist_sink: public base_sink<Mutex>
+{
+public:
+    explicit dist_sink() :_sinks() {}
+    dist_sink(const dist_sink&) = delete;
+    dist_sink& operator=(const dist_sink&) = delete;
+    virtual ~dist_sink() = default;
+
+protected:
+    void _sink_it(const details::log_msg& msg) override
+    {
+        for (auto iter = _sinks.begin(); iter != _sinks.end(); iter++)
+            (*iter)->log(msg);
+    }
+
+    std::vector<std::shared_ptr<sink>> _sinks;
+
+public:
+    void flush() override
+    {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
+        for (auto iter = _sinks.begin(); iter != _sinks.end(); iter++)
+            (*iter)->flush();
+    }
+
+    void add_sink(std::shared_ptr<sink> sink)
+    {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
+        if (sink &&
+                _sinks.end() == std::find(_sinks.begin(), _sinks.end(), sink))
+        {
+            _sinks.push_back(sink);
+        }
+    }
+
+    void remove_sink(std::shared_ptr<sink> sink)
+    {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
+        auto pos = std::find(_sinks.begin(), _sinks.end(), sink);
+        if (pos != _sinks.end())
+        {
+            _sinks.erase(pos);
+        }
+    }
+};
+
+typedef dist_sink<std::mutex> dist_sink_mt;
+typedef dist_sink<details::null_mutex> dist_sink_st;
+}
+}
diff --git a/include/spdlog/sinks/file_sinks.h b/include/spdlog/sinks/file_sinks.h
index 6c8f2df..c3d214f 100644
--- a/include/spdlog/sinks/file_sinks.h
+++ b/include/spdlog/sinks/file_sinks.h
@@ -1,34 +1,21 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/details/file_helper.h>
+#include <spdlog/details/format.h>
+
+#include <algorithm>
+#include <chrono>
+#include <cstdio>
+#include <ctime>
 #include <mutex>
-#include "base_sink.h"
-#include "../details/null_mutex.h"
-#include "../details/file_helper.h"
-#include "../details/format.h"
+#include <string>
 
 namespace spdlog
 {
@@ -230,4 +217,4 @@ private:
 typedef daily_file_sink<std::mutex> daily_file_sink_mt;
 typedef daily_file_sink<details::null_mutex> daily_file_sink_st;
 }
-}
\ No newline at end of file
+}
diff --git a/include/spdlog/sinks/msvc_sink.h b/include/spdlog/sinks/msvc_sink.h
new file mode 100644
index 0000000..9e101ad
--- /dev/null
+++ b/include/spdlog/sinks/msvc_sink.h
@@ -0,0 +1,50 @@
+//
+// Copyright(c) 2016 Alexander Dalshov.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#if defined(_MSC_VER)
+
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/details/null_mutex.h>
+
+#include <WinBase.h>
+
+#include <mutex>
+#include <string>
+
+namespace spdlog
+{
+namespace sinks
+{
+/*
+* MSVC sink (logging using OutputDebugStringA)
+*/
+template<class Mutex>
+class msvc_sink : public base_sink < Mutex >
+{
+public:
+	explicit msvc_sink()
+    {
+    }
+
+    void flush() override
+    {
+    }
+
+protected:
+    void _sink_it(const details::log_msg& msg) override
+    {
+		OutputDebugStringA(msg.formatted.c_str());
+    }
+};
+
+typedef msvc_sink<std::mutex> msvc_sink_mt;
+typedef msvc_sink<details::null_mutex> msvc_sink_st;
+
+}
+}
+
+#endif
diff --git a/include/spdlog/sinks/null_sink.h b/include/spdlog/sinks/null_sink.h
index 992b3b7..68bd9c9 100644
--- a/include/spdlog/sinks/null_sink.h
+++ b/include/spdlog/sinks/null_sink.h
@@ -1,32 +1,14 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
-#include <mutex>
-#include "./base_sink.h"
-#include "../details/null_mutex.h"
 
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/details/null_mutex.h>
+
+#include <mutex>
 
 namespace spdlog
 {
diff --git a/include/spdlog/sinks/ostream_sink.h b/include/spdlog/sinks/ostream_sink.h
index f2fe3b2..feb5efa 100644
--- a/include/spdlog/sinks/ostream_sink.h
+++ b/include/spdlog/sinks/ostream_sink.h
@@ -1,35 +1,15 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/sinks/base_sink.h>
+
 #include <ostream>
 #include <mutex>
-#include <memory>
-
-#include "../details/null_mutex.h"
-#include "./base_sink.h"
 
 namespace spdlog
 {
diff --git a/include/spdlog/sinks/sink.h b/include/spdlog/sinks/sink.h
index 88c423a..39dc771 100644
--- a/include/spdlog/sinks/sink.h
+++ b/include/spdlog/sinks/sink.h
@@ -1,30 +1,12 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
 
 #pragma once
 
-#include "../details/log_msg.h"
+#include <spdlog/details/log_msg.h>
 
 namespace spdlog
 {
diff --git a/include/spdlog/sinks/stdout_sinks.h b/include/spdlog/sinks/stdout_sinks.h
index 5ad06c2..85db334 100644
--- a/include/spdlog/sinks/stdout_sinks.h
+++ b/include/spdlog/sinks/stdout_sinks.h
@@ -1,33 +1,16 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
+#include <spdlog/sinks/ostream_sink.h>
+#include <spdlog/details/null_mutex.h>
+
 #include <iostream>
+#include <memory>
 #include <mutex>
-#include "./ostream_sink.h"
-#include "../details/null_mutex.h"
 
 namespace spdlog
 {
diff --git a/include/spdlog/sinks/syslog_sink.h b/include/spdlog/sinks/syslog_sink.h
index 37b6513..5d7ccf8 100644
--- a/include/spdlog/sinks/syslog_sink.h
+++ b/include/spdlog/sinks/syslog_sink.h
@@ -1,39 +1,20 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
-#ifdef __linux__
+#if defined(__linux__) || defined(__APPLE__)
+
+#include <spdlog/sinks/sink.h>
+#include <spdlog/common.h>
+#include <spdlog/details/log_msg.h>
 
 #include <array>
 #include <string>
 #include <syslog.h>
 
-#include "./sink.h"
-#include "../common.h"
-#include "../details/log_msg.h"
-
 
 namespace spdlog
 {
@@ -75,7 +56,7 @@ public:
 
     void log(const details::log_msg &msg) override
     {
-        ::syslog(syslog_prio_from_level(msg), "%s", msg.formatted.str().c_str());
+        ::syslog(syslog_prio_from_level(msg), "%s", msg.raw.str().c_str());
     }
 
     void flush() override
diff --git a/include/spdlog/spdlog.h b/include/spdlog/spdlog.h
index aef0406..b92a239 100644
--- a/include/spdlog/spdlog.h
+++ b/include/spdlog/spdlog.h
@@ -1,36 +1,21 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 // spdlog main header file.
-//see example.cpp for usage example
+// see example.cpp for usage example
 
 #pragma once
 
-#include "tweakme.h"
-#include "common.h"
-#include "logger.h"
+#include <spdlog/tweakme.h>
+#include <spdlog/common.h>
+#include <spdlog/logger.h>
+
+#include <memory>
+#include <functional>
+#include <chrono>
+#include <string>
 
 namespace spdlog
 {
@@ -98,7 +83,7 @@ std::shared_ptr<logger> stderr_logger_st(const std::string& logger_name);
 //
 // Create and register a syslog logger
 //
-#ifdef __linux__
+#if defined(__linux__) || defined(__APPLE__)
 std::shared_ptr<logger> syslog_logger(const std::string& logger_name, const std::string& ident = "", int syslog_option = 0);
 #endif
 
@@ -112,7 +97,7 @@ std::shared_ptr<logger> create(const std::string& logger_name, const It& sinks_b
 // Create and register a logger with templated sink type
 // Example: spdlog::create<daily_file_sink_st>("mylog", "dailylog_filename", "txt");
 template <typename Sink, typename... Args>
-std::shared_ptr<spdlog::logger> create(const std::string& logger_name, const Args&...);
+std::shared_ptr<spdlog::logger> create(const std::string& logger_name, Args...);
 
 
 // Register the given logger with the given name
@@ -152,4 +137,4 @@ void drop_all();
 }
 
 
-#include "details/spdlog_impl.h"
+#include <spdlog/details/spdlog_impl.h>
diff --git a/include/spdlog/tweakme.h b/include/spdlog/tweakme.h
index b651658..f136514 100644
--- a/include/spdlog/tweakme.h
+++ b/include/spdlog/tweakme.h
@@ -1,34 +1,13 @@
-/*************************************************************************/
-/* spdlog - an extremely fast and easy to use c++11 logging library.     */
-/* Copyright (c) 2014 Gabi Melman.                                       */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
 
 #pragma once
 
-///////////////////////////////////////////////////////////////////////////////
+//
 // Edit this file to squeeze every last drop of performance out of spdlog.
-///////////////////////////////////////////////////////////////////////////////
-
+//
 
 ///////////////////////////////////////////////////////////////////////////////
 // Under Linux, the much faster CLOCK_REALTIME_COARSE clock can be used.
diff --git a/tests/Makefile b/tests/Makefile
index 5be7be5..0eec327 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -1,5 +1,5 @@
 CXX	?= g++
-CXXFLAGS	=  -Wall  -pedantic -std=c++11 -pthread -O2
+CXXFLAGS	=  -Wall  -pedantic -std=c++11 -pthread -O2 -I../include
 LDPFALGS = -pthread
 
 CPP_FILES := $(wildcard *.cpp)
diff --git a/tests/file_helper.cpp b/tests/file_helper.cpp
new file mode 100644
index 0000000..f57ab70
--- /dev/null
+++ b/tests/file_helper.cpp
@@ -0,0 +1,77 @@
+/*
+* This content is released under the MIT License as specified in https://raw.githubusercontent.com/gabime/spdlog/master/LICENSE
+*/
+#include "includes.h"
+
+using namespace spdlog::details;
+
+static const std::string filename = "logs/file_helper_test.txt";
+
+static void write_with_helper(file_helper &helper, size_t howmany)
+{
+    log_msg msg;
+    msg.formatted << std::string(howmany, '1');
+    helper.write(msg);
+}
+
+
+TEST_CASE("file_helper_filename", "[file_helper::filename()]]")
+{
+    prepare_logdir();
+
+    file_helper helper(false);
+    helper.open(filename);
+    REQUIRE(helper.filename() == filename);
+}
+
+
+
+TEST_CASE("file_helper_size", "[file_helper::size()]]")
+{
+    prepare_logdir();
+    auto expected_size = 123;
+    {
+        file_helper helper(true);
+        helper.open(filename);
+        write_with_helper(helper, expected_size);
+        REQUIRE(helper.size() == expected_size);
+    }
+    REQUIRE(get_filesize(filename) == expected_size);
+}
+
+
+TEST_CASE("file_helper_exists", "[file_helper::file_exists()]]")
+{
+    prepare_logdir();
+    REQUIRE(!file_helper::file_exists(filename));
+    file_helper helper(false);
+    helper.open(filename);
+    REQUIRE(file_helper::file_exists(filename));
+}
+
+TEST_CASE("file_helper_reopen", "[file_helper::reopen()]]")
+{
+    prepare_logdir();
+    file_helper helper(true);
+    helper.open(filename);
+    write_with_helper(helper, 12);
+    REQUIRE(helper.size() == 12);
+    helper.reopen(true);
+    REQUIRE(helper.size() == 0);
+}
+
+TEST_CASE("file_helper_reopen2", "[file_helper::reopen(false)]]")
+{
+    prepare_logdir();
+    auto expected_size = 14;
+    file_helper helper(true);
+    helper.open(filename);
+    write_with_helper(helper, expected_size);
+    REQUIRE(helper.size() == expected_size);
+    helper.reopen(false);
+    REQUIRE(helper.size() == expected_size);
+}
+
+
+
+
diff --git a/tests/file_log.cpp b/tests/file_log.cpp
index d8e5aa1..2abd021 100644
--- a/tests/file_log.cpp
+++ b/tests/file_log.cpp
@@ -1,48 +1,8 @@
+/*
+ * This content is released under the MIT License as specified in https://raw.githubusercontent.com/gabime/spdlog/master/LICENSE
+ */
 #include "includes.h"
 
-static std::string file_contents(const std::string& filename)
-{
-    std::ifstream ifs(filename);
-    if (!ifs)
-        throw std::runtime_error("Failed open file ");
-    return std::string((std::istreambuf_iterator<char>(ifs)),
-                       (std::istreambuf_iterator<char>()));
-
-}
-
-static std::size_t count_lines(const std::string& filename)
-{
-    std::ifstream ifs(filename);
-    if (!ifs)
-        throw std::runtime_error("Failed open file ");
-
-    std::string line;
-    size_t counter = 0;
-    while(std::getline(ifs, line))
-        counter++;
-    return counter;
-}
-
-std::ifstream::pos_type filesize(const std::string& filename)
-{
-    std::ifstream ifs(filename, std::ifstream::ate | std::ifstream::binary);
-    if (!ifs)
-        throw std::runtime_error("Failed open file ");
-
-    return ifs.tellg();
-}
-
-static void prepare_logdir()
-{
-    spdlog::drop_all();
-#ifdef _WIN32
-    auto rv = system("del /F /Q logs\\*");
-#else
-    auto rv = system("rm -f logs/*");
-#endif
-}
-
-
 
 TEST_CASE("simple_file_logger", "[simple_logger]]")
 {
@@ -52,7 +12,7 @@ TEST_CASE("simple_file_logger", "[simple_logger]]")
     auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("logger", filename);
     logger->set_pattern("%v");
 
-    
+
     logger->info("Test message {}", 1);
     logger->info("Test message {}", 2);
     logger->flush();
@@ -61,7 +21,6 @@ TEST_CASE("simple_file_logger", "[simple_logger]]")
 
 }
 
-
 TEST_CASE("rotating_file_logger1", "[rotating_logger]]")
 {
     prepare_logdir();
@@ -93,9 +52,9 @@ TEST_CASE("rotating_file_logger2", "[rotating_logger]]")
         logger->info("Test message {}", i);
 
     logger->flush();
-    REQUIRE(filesize(filename) <= 1024);
+    REQUIRE(get_filesize(filename) <= 1024);
     auto filename1 = basename + ".1.txt";
-    REQUIRE(filesize(filename1) <= 1024);
+    REQUIRE(get_filesize(filename1) <= 1024);
 }
 
 
diff --git a/tests/includes.h b/tests/includes.h
index 7cda161..9cdee27 100644
--- a/tests/includes.h
+++ b/tests/includes.h
@@ -8,5 +8,8 @@
 #include <exception>
 
 #include "catch.hpp"
+#include "utils.h"
+
 #include "../include/spdlog/spdlog.h"
 #include "../include/spdlog/sinks/null_sink.h"
+
diff --git a/tests/tests.vcxproj b/tests/tests.vcxproj
index 58cfd52..56787c7 100644
--- a/tests/tests.vcxproj
+++ b/tests/tests.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
       <Configuration>Debug</Configuration>
@@ -26,26 +26,26 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v120</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v120</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v120</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v120</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
@@ -82,6 +82,8 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir)..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -110,6 +112,8 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>$(SolutionDir)..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -119,14 +123,17 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="file_helper.cpp" />
     <ClCompile Include="file_log.cpp" />
     <ClCompile Include="format.cpp" />
     <ClCompile Include="main.cpp" />
     <ClCompile Include="registry.cpp" />
+    <ClCompile Include="utils.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="catch.hpp" />
     <ClInclude Include="includes.h" />
+    <ClInclude Include="utils.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
diff --git a/tests/tests.vcxproj.filters b/tests/tests.vcxproj.filters
index 36fe0a8..8a1a5d6 100644
--- a/tests/tests.vcxproj.filters
+++ b/tests/tests.vcxproj.filters
@@ -27,6 +27,12 @@
     <ClCompile Include="registry.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="file_helper.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="utils.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="includes.h">
@@ -35,5 +41,8 @@
     <ClInclude Include="catch.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="utils.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/tests/utils.cpp b/tests/utils.cpp
new file mode 100644
index 0000000..83fdf84
--- /dev/null
+++ b/tests/utils.cpp
@@ -0,0 +1,45 @@
+#include "includes.h"
+
+void prepare_logdir()
+{
+    spdlog::drop_all();
+#ifdef _WIN32
+    system("del /F /Q logs\\*");
+#else
+    system("rm -f logs/*");
+#endif
+}
+
+
+std::string file_contents(const std::string& filename)
+{
+    std::ifstream ifs(filename);
+    if (!ifs)
+        throw std::runtime_error("Failed open file ");
+    return std::string((std::istreambuf_iterator<char>(ifs)),
+                       (std::istreambuf_iterator<char>()));
+
+}
+
+std::size_t count_lines(const std::string& filename)
+{
+    std::ifstream ifs(filename);
+    if (!ifs)
+        throw std::runtime_error("Failed open file ");
+
+    std::string line;
+    size_t counter = 0;
+    while(std::getline(ifs, line))
+        counter++;
+    return counter;
+}
+
+std::size_t get_filesize(const std::string& filename)
+{
+    std::ifstream ifs(filename, std::ifstream::ate | std::ifstream::binary);
+    if (!ifs)
+        throw std::runtime_error("Failed open file ");
+
+    return ifs.tellg();
+}
+
diff --git a/tests/utils.h b/tests/utils.h
new file mode 100644
index 0000000..1d9b621
--- /dev/null
+++ b/tests/utils.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <string>
+#include<cstddef>
+
+std::size_t count_lines(const std::string& filename);
+
+void prepare_logdir();
+
+std::string file_contents(const std::string& filename);
+
+std::size_t count_lines(const std::string& filename);
+
+std::size_t get_filesize(const std::string& filename);
+

-- 
Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/debian-med/spdlog.git



More information about the debian-med-commit mailing list