Updated to fedora-glibc-20081028T1533
[glibc.git] / bits / huge_val.h
blobe102ac32205461ca191eb5a3d0b7a9346d020478
1 /* Stub `HUGE_VAL' constant.
2 Used by <stdlib.h> and <math.h> functions for overflow.
3 Copyright (C) 1992, 1996, 1997, 2004 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 02111-1307 USA. */
21 #ifndef _MATH_H
22 # error "Never use <bits/huge_val.h> directly; include <math.h> instead."
23 #endif
25 #if __GNUC_PREREQ(3,3)
26 # define HUGE_VAL (__builtin_huge_val())
27 #else
28 # define HUGE_VAL 1e37
29 #endif