diff options
| author | Henry Stiles <henry.stiles@artifex.com> | 2007-12-28 00:55:54 +0000 |
|---|---|---|
| committer | Henry Stiles <henry.stiles@artifex.com> | 2007-12-28 00:55:54 +0000 |
| commit | fe5cd5ed5348c15040a7502bfc6378d2b7253e91 (patch) | |
| tree | 786d4c796dcc207f1d06429f42d26e9989daa669 /pxl/pxvalue.c | |
| parent | da613002a7133935fd6ec404e5d860d81c9adf83 (diff) | |
Fixes several issues associated with bug #689598. pcl6_gcc.mak now
initializes FPU_TYPE and adopts similar warning and code generation
options from gs. In pxvalue.c:real32at the compiler did not generate
the expected code with -O2 optimization. We suspect this is because
the code was not compliant with C99 strict aliasing rules but don't
know for sure. The procedure has been replaced with a "legal"
equivalent. No differences expected on 32 bit regression tests.
git-svn-id: http://svn.ghostscript.com/ghostpcl/trunk/ghostpcl@2997 06663e23-700e-0410-b217-a244a6096597
Diffstat (limited to 'pxl/pxvalue.c')
| -rw-r--r-- | pxl/pxvalue.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/pxl/pxvalue.c b/pxl/pxvalue.c index c3982b5ae..8431e78e0 100644 --- a/pxl/pxvalue.c +++ b/pxl/pxvalue.c @@ -40,9 +40,14 @@ sint32at(const byte *p, bool big_endian) } real real32at(const byte *p, bool big_endian) -{ float f; - *(integer *)&f = uint32at(p, big_endian); - return (real)f; +{ + union { + float f; + integer d; + } df; + + df.d = uint32at(p, big_endian); + return (real)df.f; } /* Get an element from an array. */ |