[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [59111] trunk/blender/source/blender/ blenlib/BLI_math_base.h: use __builtin_nanf with gcc and clang.

[Campbell Barton]

Revision: 59111
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=59111
Author:   campbellbarton
Date:     2013-08-13 10:40:23 +0000 (Tue, 13 Aug 2013)
Log Message:
-----------
use __builtin_nanf with gcc and clang.

Modified Paths:
--------------
    trunk/blender/source/blender/blenlib/BLI_math_base.h

Modified: trunk/blender/source/blender/blenlib/BLI_math_base.h
===================================================================
--- trunk/blender/source/blender/blenlib/BLI_math_base.h	2013-08-13 10:21:11 UTC (rev 59110)
+++ trunk/blender/source/blender/blenlib/BLI_math_base.h	2013-08-13 10:40:23 UTC (rev 59111)
@@ -80,9 +80,13 @@
 #define MAXFLOAT  ((float)3.40282347e+38)
 #endif
 
+#if defined(__GNUC__)
+#  define NAN_FLT __builtin_nanf("")
+#else
 /* evil quiet NaN definition */
 static const int NAN_INT = 0x7FC00000;
-#define NAN_FLT *((float *)(&NAN_INT))
+#  define NAN_FLT  (*((float *)(&NAN_INT)))
+#endif
 
 /* do not redefine functions from C99 or POSIX.1-2001 */
 #if !(defined(_ISOC99_SOURCE) || (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L))