1 /* `HUGE_VALL' constant for ia64 (where it is infinity).
2 Used by <stdlib.h> and <math.h> functions for overflow.
3 Copyright (C) 2000-2017 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, see
18 <http://www.gnu.org/licenses/>. */
21 # error "Never use <bits/huge_vall.h> directly; include <math.h> instead."
24 #if __GNUC_PREREQ(3,3)
25 # define HUGE_VALL (__builtin_huge_vall())
26 #elif __GNUC_PREREQ(2,96)
27 # define HUGE_VALL (__extension__ 0x1.0p32767L)
30 # define __HUGE_VALL_bytes { 0,0,0,0,0,0,0, 0x80, 0xff, 0x7f, 0,0,0,0,0,0}
32 # define __huge_vall_t union { unsigned char __c[16]; long double __ld; }
34 # define HUGE_VALL (__extension__ \
35 ((__huge_vall_t) { __c: __HUGE_VALL_bytes }).__ld)
37 static __huge_vall_t __huge_vall
= { __HUGE_VALL_bytes
};
38 # define HUGE_VALL (__huge_vall.__ld)