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authorEric Andersen <andersen@codepoet.org>2001-11-14 07:34:46 +0000
committerEric Andersen <andersen@codepoet.org>2001-11-14 07:34:46 +0000
commit7ec11f7e1cd24b4c1051140cc412c20e210f1ee8 (patch)
tree91a332ba854629d95c9e09095ad40eb516229b74 /libc/sysdeps/linux/m68k/bits/huge_val.h
parent40f41cdcdbd34179b696a7466344524e2d0c0222 (diff)
Sync up m68k headers
Diffstat (limited to 'libc/sysdeps/linux/m68k/bits/huge_val.h')
-rw-r--r--libc/sysdeps/linux/m68k/bits/huge_val.h57
1 files changed, 37 insertions, 20 deletions
diff --git a/libc/sysdeps/linux/m68k/bits/huge_val.h b/libc/sysdeps/linux/m68k/bits/huge_val.h
index 822b82930..ad5253429 100644
--- a/libc/sysdeps/linux/m68k/bits/huge_val.h
+++ b/libc/sysdeps/linux/m68k/bits/huge_val.h
@@ -1,22 +1,22 @@
/* `HUGE_VAL' constants for m68k (where it is infinity).
Used by <stdlib.h> and <math.h> functions for overflow.
- Copyright (C) 1992, 1995, 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1995, 1996, 1997, 1999, 2000 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
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
#ifndef _MATH_H
# error "Never use <bits/huge_val.h> directly; include <math.h> instead."
@@ -30,11 +30,19 @@
#ifdef __GNUC__
-# define HUGE_VAL \
+# if __GNUC_PREREQ(2,96)
+
+# define HUGE_VAL (__extension__ 0x1.0p2047)
+
+# else
+
+# define HUGE_VAL \
(__extension__ \
((union { unsigned long long __l; double __d; }) \
{ __l: 0x7ff0000000000000ULL }).__d)
+# endif
+
#else /* not GCC */
static union { unsigned char __c[8]; double __d; } __huge_val =
@@ -44,32 +52,41 @@ static union { unsigned char __c[8]; double __d; } __huge_val =
#endif /* GCC. */
-/* ISO C 9X extensions: (float) HUGE_VALF and (long double) HUGE_VALL. */
+/* ISO C 99 extensions: (float) HUGE_VALF and (long double) HUGE_VALL. */
-#ifdef __USE_ISOC9X
+#ifdef __USE_ISOC99
-# ifdef __GNUC__
+# if __GNUC_PREREQ(2,96)
-# define HUGE_VALF \
+# define HUGE_VALF (__extension__ 0x1.0p255f)
+# define HUGE_VALL (__extension__ 0x1.0p32767L)
+
+# else
+
+# ifdef __GNUC__
+
+# define HUGE_VALF \
(__extension__ \
((union { unsigned long __l; float __f; }) \
{ __l: 0x7f800000UL }).__f)
-# define HUGE_VALL \
+# define HUGE_VALL \
(__extension__ \
((union { unsigned long __l[3]; long double __ld; }) \
{ __l: { 0x7fff0000UL, 0x80000000UL, 0UL } }).__ld)
-# else /* not GCC */
+# else /* not GCC */
static union { unsigned char __c[4]; float __f; } __huge_valf =
{ { 0x7f, 0x80, 0, 0 } };
-# define HUGE_VALF (__huge_valf.__f)
+# define HUGE_VALF (__huge_valf.__f)
static union { unsigned char __c[12]; long double __ld; } __huge_vall =
{ { 0x7f, 0xff, 0, 0, 0x80, 0, 0, 0, 0, 0, 0, 0 } };
-# define HUGE_VALL (__huge_vall.__ld)
+# define HUGE_VALL (__huge_vall.__ld)
+
+# endif /* GCC. */
-# endif /* GCC. */
+# endif /* GCC 2.95. */
-#endif /* __USE_ISOC9X. */
+#endif /* __USE_ISOC99. */