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a86573f4 | 1 | /* `INFINITY' constant for IEEE 754 machines. |
b168057a | 2 | Copyright (C) 2004-2015 Free Software Foundation, Inc. |
a86573f4 RH |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
a86573f4 RH |
18 | |
19 | #ifndef _MATH_H | |
20 | # error "Never use <bits/inf.h> directly; include <math.h> instead." | |
21 | #endif | |
22 | ||
23 | /* IEEE positive infinity. */ | |
24 | ||
25 | #if __GNUC_PREREQ(3,3) | |
26 | # define INFINITY (__builtin_inff()) | |
27 | #else | |
28 | # define INFINITY HUGE_VALF | |
29 | #endif |