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| author | Ulrich Drepper <drepper@redhat.com> | 2008-11-01 02:28:57 +0000 |
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| committer | Ulrich Drepper <drepper@redhat.com> | 2008-11-01 02:28:57 +0000 |
| commit | acd44dbc7a0e6001406eb9e46eecab3ae34d9966 (patch) | |
| tree | 8ee36c5c78e8e58489707450eebfdc3a52a2530f /math | |
| parent | bf837fa36ff39d077b09ce592b1c4c38592586c1 (diff) | |
| download | glibc-acd44dbc7a0e6001406eb9e46eecab3ae34d9966.tar.gz glibc-acd44dbc7a0e6001406eb9e46eecab3ae34d9966.tar.xz glibc-acd44dbc7a0e6001406eb9e46eecab3ae34d9966.zip | |
2008-10-24 Joseph Myers <joseph@codesourcery.com>
Ulrich Drepper <drepper@redhat.com> * math/tgmath.h (__floating_type): Use __builtin_classify_type in definition for GCC 3.1 and later.
Diffstat (limited to 'math')
| -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. */ |