| #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 */ |