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Diffstat (limited to 'sysdeps/ieee754/huge_val.h')
| -rw-r--r-- | sysdeps/ieee754/huge_val.h | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/sysdeps/ieee754/huge_val.h b/sysdeps/ieee754/huge_val.h deleted file mode 100644 index a2520859e4..0000000000 --- a/sysdeps/ieee754/huge_val.h +++ /dev/null @@ -1,88 +0,0 @@ -/* `HUGE_VAL' constants for IEEE 754 machines (where it is infinity). - Used by <stdlib.h> and <math.h> functions for overflow. - Copyright (C) 1992, 1995, 1996, 1997 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. - - 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. - - 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. */ - -#ifndef _HUGE_VAL_H -#define _HUGE_VAL_H 1 - -#include <features.h> -#include <sys/cdefs.h> -#include <endian.h> - -/* IEEE positive infinity (-HUGE_VAL is negative infinity). */ - -#ifdef __GNUC__ - -#define HUGE_VAL \ - (__extension__ \ - ((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; }) \ - { __l: 0x7ff0000000000000ULL }).__d) - -#else /* not GCC */ - -typedef union { unsigned char __c[8]; double __d; } __huge_val_t; - -#if __BYTE_ORDER == __BIG_ENDIAN -#define __HUGE_VAL_bytes { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 } -#endif -#if __BYTE_ORDER == __LITTLE_ENDIAN -#define __HUGE_VAL_bytes { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f } -#endif - -static __huge_val_t __huge_val = { __HUGE_VAL_bytes }; -#define HUGE_VAL (__huge_val.__d) - -#endif /* GCC. */ - - -/* ISO C 9X extensions: (float) HUGE_VALF and (long double) HUGE_VALL. */ - -#ifdef __USE_ISOC9X - -#ifdef __GNUC__ - -#define HUGE_VALF \ - (__extension__ \ - ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; }) \ - { __l: 0x7f800000UL }).__d) - -#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_ISOC9X. */ - -#endif /* huge_val.h */ |