diff options
Diffstat (limited to 'math/tgmath.h')
| -rw-r--r-- | math/tgmath.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/math/tgmath.h b/math/tgmath.h index 4f45aaa0f2..eefdd26c9c 100644 --- a/math/tgmath.h +++ b/math/tgmath.h @@ -48,7 +48,14 @@ /* 1 if 'type' is a floating type, 0 if 'type' is an integer type. Allows for _Bool. Expands to an integer constant expression. */ -# define __floating_type(type) (((type) 0.25) && ((type) 0.25 - 1)) +# if __GNUC_PREREQ (3, 1) +# define __floating_type(type) \ + (__builtin_classify_type ((type) 0) == 8 \ + || (__builtin_classify_type ((type) 0) == 9 \ + && __builtin_classify_type (__real__ ((type) 0)) == 8)) +# else +# define __floating_type(type) (((type) 0.25) && ((type) 0.25 - 1)) +# endif /* The tgmath real type for T, where E is 0 if T is an integer type and 1 for a floating type. */ |