From acd44dbc7a0e6001406eb9e46eecab3ae34d9966 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sat, 1 Nov 2008 02:28:57 +0000 Subject: 2008-10-24 Joseph Myers Ulrich Drepper * math/tgmath.h (__floating_type): Use __builtin_classify_type in definition for GCC 3.1 and later. --- math/tgmath.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'math') 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. */ -- cgit 1.4.1