svn commit: trunk/uClibc/libc/sysdeps/linux/bfin/bits

[vapier at uclibc.org]

Author: vapier
Date: 2006-08-24 11:06:51 -0700 (Thu, 24 Aug 2006)
New Revision: 15975

Log:
update to new huge_val headers

Modified:
   trunk/uClibc/libc/sysdeps/linux/bfin/bits/huge_val.h


Changeset:
Modified: trunk/uClibc/libc/sysdeps/linux/bfin/bits/huge_val.h
===================================================================
--- trunk/uClibc/libc/sysdeps/linux/bfin/bits/huge_val.h	2006-08-24 18:02:17 UTC (rev 15974)
+++ trunk/uClibc/libc/sysdeps/linux/bfin/bits/huge_val.h	2006-08-24 18:06:51 UTC (rev 15975)
@@ -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(3,3)
+# define HUGE_VAL  (__builtin_huge_val())
+#elif __GNUC_PREREQ(2,96)
+# define HUGE_VAL (__extension__ 0x1.0p2047)
+#elif defined __GNUC__
 
-# if __GNUC_PREREQ(2,96)
-
-#  define HUGE_VAL (__extension__ 0x1.0p2047)
-
-# 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 @@
 # 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.  */