From 7ec11f7e1cd24b4c1051140cc412c20e210f1ee8 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Wed, 14 Nov 2001 07:34:46 +0000 Subject: Sync up m68k headers --- libc/sysdeps/linux/m68k/bits/huge_val.h | 57 +++++++++++++++++++++------------ 1 file changed, 37 insertions(+), 20 deletions(-) (limited to 'libc/sysdeps/linux/m68k/bits/huge_val.h') 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 and 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 directly; include 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. */ -- cgit v1.2.3