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authorMike Frysinger <vapier@gentoo.org>2006-08-24 18:06:51 +0000
committerMike Frysinger <vapier@gentoo.org>2006-08-24 18:06:51 +0000
commit8008ba0c85e4b1c8befdb04d69ff109a606669f9 (patch)
treea759567aec8ab3bbb6ab06f2f0c6f7dd00febc92 /libc
parentcf4b06dc8cb0e835c23e8fb41a6cab9532c72e0a (diff)
update to new huge_val headers
Diffstat (limited to 'libc')
-rw-r--r--libc/sysdeps/linux/bfin/bits/huge_val.h67
1 files changed, 10 insertions, 57 deletions
diff --git a/libc/sysdeps/linux/bfin/bits/huge_val.h b/libc/sysdeps/linux/bfin/bits/huge_val.h
index f5f5b642a..9c8b72159 100644
--- a/libc/sysdeps/linux/bfin/bits/huge_val.h
+++ b/libc/sysdeps/linux/bfin/bits/huge_val.h
@@ -1,6 +1,8 @@
-/* `HUGE_VAL' constants for blackfin (where it is infinity).
+/* `HUGE_VAL' constant for IEEE 754 machines (where it is infinity).
Used by <stdlib.h> and <math.h> functions for overflow.
- Copyright (C) 1992, 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
+ Blackfin version.
+ Copyright (C) 1992, 95, 96, 97, 98, 99, 2000, 2004
+ Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -22,25 +24,19 @@
# error "Never use <bits/huge_val.h> directly; include <math.h> instead."
#endif
-#include <features.h>
-
/* IEEE positive infinity (-HUGE_VAL is negative infinity). */
-#ifdef __GNUC__
-
-# if __GNUC_PREREQ(2,96)
-
-# define HUGE_VAL (__extension__ 0x1.0p2047)
+#if __GNUC_PREREQ(3,3)
+# define HUGE_VAL (__builtin_huge_val())
+#elif __GNUC_PREREQ(2,96)
+# define HUGE_VAL (__extension__ 0x1.0p2047)
+#elif defined __GNUC__
-# else
-
-# define HUGE_VAL \
+# define HUGE_VAL \
(__extension__ \
((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; }) \
{ __l: 0x000000007ff00000ULL }).__d)
-# endif
-
#else /* not GCC */
# include <endian.h>
@@ -58,46 +54,3 @@ static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
# define HUGE_VAL (__huge_val.__d)
#endif /* GCC. */
-
-
-/* ISO C99 extensions: (float) HUGE_VALF and (long double) HUGE_VALL. */
-
-#ifdef __USE_ISOC99
-
-# ifdef __GNUC__
-
-# if __GNUC_PREREQ(2,96)
-
-# define HUGE_VALF (__extension__ 0x1.0p255f)
-
-# else
-
-# define HUGE_VALF \
- (__extension__ \
- ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; }) \
- { __l: 0x7f800000UL }).__d)
-
-# endif
-
-# else /* not GCC */
-
-typedef union { unsigned char __c[4]; float __f; } __huge_valf_t;
-
-# if __BYTE_ORDER == __BIG_ENDIAN
-# define __HUGE_VALF_bytes { 0x7f, 0x80, 0, 0 }
-# endif
-# if __BYTE_ORDER == __LITTLE_ENDIAN
-# define __HUGE_VALF_bytes { 0, 0, 0x80, 0x7f }
-# endif
-
-static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
-# define HUGE_VALF (__huge_valf.__f)
-
-# endif /* GCC. */
-
-
-/* Generally there is no separate `long double' format and it is the
- same as `double'. */
-# define HUGE_VALL HUGE_VAL
-
-#endif /* __USE_ISOC99. */