[Debian-med-packaging] Bug#859667: [Pkg-d-devel] Bug#859667: libundead: FTBFS on armhf and ppc64el: tests fail

[Andreas Tille]

On Wed, Apr 05, 2017 at 10:22:28PM +0200, Iain Buclaw wrote:
> Which compiler?

$ LANG=C apt-cache policy ldc
ldc:
  Installed: 1:1.1.1-1

> Are NaNs being honoured?

Hmmm, no idea how to check this.

> What if you were to replace
> the `(x != x && f != f)` comparison with `(isNaN(x) && isNaN(f))` ?

If I apply the following patch

--- a/src/undead/stream.d
+++ b/src/undead/stream.d
@@ -1455,7 +1455,7 @@ class Stream : InputStream, OutputStream

       float f;
       assert(s.readf(&f));
-      assert(x == f || (x != x && f != f)); //either equal or both NaN
+      assert(x == f || (isNaN(x) && isNaN(f))); //either equal or both NaN
     }

     tryFloatRoundtrip(1.0);


I get

...
[12/25] ldc2  '-Iundead_test at exe' '-I.' '-I..' '-I../src/' '-enable-color' '-O' '-release' '-g' '-unittest'  -of 'undead_test at exe/src_undead_stream.d.o' -c ../src/undead/stream.d
FAILED: undead_test at exe/src_undead_stream.d.o 
ldc2  '-Iundead_test at exe' '-I.' '-I..' '-I../src/' '-enable-color' '-O' '-release' '-g' '-unittest'  -of 'undead_test at exe/src_undead_stream.d.o' -c ../src/undead/stream.d
../src/undead/stream.d(1458): Error: undefined identifier 'isNaN'
../src/undead/stream.d(1458): Error: undefined identifier 'isNaN'


I have the feelingt that this meand "no" to your second question.

Any other hints?

Kind regards

      Andreas.

-- 
http://fam-tille.de