diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | math/tgmath.h | 9 |
2 files changed, 14 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog index e590178a40..bfd6957368 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +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. + 2008-10-31 Jakub Jelinek <jakub@redhat.com> * elf/dl-tls.c (__tls_get_addr): After calling _dl_update_slotinfo 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. */ |