URL
https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk
Subversion Repositories openrisc_me
[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [sys/] [linux/] [machine/] [i386/] [huge_val.h] - Rev 262
Go to most recent revision | Compare with Previous | Blame | View Log
#if 0 /* We don't need this file because math.h defines these values. */ /* `HUGE_VAL' constants for ix86 (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. 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 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 Lesser General Public License for more details. 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. */ #include <features.h> /* ISO C99 extensions: (float) HUGE_VALF and (long double) HUGE_VALL. */ # if __GNUC_PREREQ(2,96) # define HUGE_VALF (__extension__ 0x1.0p255f) # define HUGE_VALL (__extension__ 0x1.0p32767L) # else # define __HUGE_VALF_bytes { 0, 0, 0x80, 0x7f } # define __huge_valf_t union { unsigned char __c[4]; float __f; } # ifdef __GNUC__ # define HUGE_VALF (__extension__ \ ((__huge_valf_t) { __c: __HUGE_VALF_bytes }).__f) # else /* Not GCC. */ static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes }; # define HUGE_VALF (__huge_valf.__f) # endif /* GCC. */ # define __HUGE_VALL_bytes { 0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0x7f, 0, 0 } # define __huge_vall_t union { unsigned char __c[12]; long double __ld; } # ifdef __GNUC__ # define HUGE_VALL (__extension__ \ ((__huge_vall_t) { __c: __HUGE_VALL_bytes }).__ld) # else /* Not GCC. */ static __huge_vall_t __huge_vall = { __HUGE_VALL_bytes }; # define HUGE_VALL (__huge_vall.__ld) # endif /* GCC. */ # endif /* GCC 2.95 */ #endif /* if 0 */
Go to most recent revision | Compare with Previous | Blame | View Log