[mapcode] 01/04: minor speed improvement

[Stefan Fritsch]

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

sf pushed a commit to tag v2.1.2
in repository mapcode.

commit 90966d018c2a9de8f832adb8543d2c777f4fdaf4
Author: Mapcode C Developer <pieter.geelen at mapcode.com>
Date:   Mon Aug 24 22:13:07 2015 +0200

    minor speed improvement
---
 mapcodelib/mapcoder.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/mapcodelib/mapcoder.c b/mapcodelib/mapcoder.c
index 54d8799..eb49459 100644
--- a/mapcodelib/mapcoder.c
+++ b/mapcodelib/mapcoder.c
@@ -309,6 +309,7 @@ static void encodeExtension(char *result, int extrax4, int extray, int dividerx4
                             int ydirection,
                             const encodeRec *enc) // append extra characters to result for more precision
 {
+  if (extraDigits > 0) { // anything to do?
     char *s = result + strlen(result);
     int factorx = MAX_PRECISION_FACTOR * dividerx4; // 30^4
     int factory = MAX_PRECISION_FACTOR * dividery; // 30^4
@@ -319,7 +320,7 @@ static void encodeExtension(char *result, int extrax4, int extray, int dividerx4
     if (valx<0) { valx=0; } else if (valx>=factorx) { valx=factorx-1; }
     if (valy<0) { valy=0; } else if (valy>=factory) { valy=factory-1; }
 
-    if (extraDigits < 0) { extraDigits = 0; } else if (extraDigits > MAX_PRECISION_DIGITS) {
+    if (extraDigits > MAX_PRECISION_DIGITS) {
         extraDigits = MAX_PRECISION_DIGITS;
     }
 
@@ -347,8 +348,9 @@ static void encodeExtension(char *result, int extrax4, int extray, int dividerx4
         if (extraDigits-- > 0) {
             *s++ = encode_chars[row2 * 6 + column2];
         }
-        *s = 0;
     }
+    *s = 0; // terminate the result
+  }
 }
 
 #define decodeChar(c) decode_chars[(unsigned char)c] // force c to be in range of the index, between 0 and 255

-- 
Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/pkg-grass/mapcode.git