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2e65b52f LC |
1 | /* Test for positive or negative infinity. |
2 | Copyright (C) 2007-2010 Free Software Foundation, Inc. | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU Lesser General Public License as published by | |
6 | the Free Software Foundation; either version 2, or (at your option) | |
7 | any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public License along | |
15 | with this program; if not, write to the Free Software Foundation, | |
16 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
17 | ||
18 | /* Written by Ben Pfaff <blp@gnu.org>, 2008. */ | |
19 | ||
20 | #include <config.h> | |
21 | ||
22 | #include <float.h> | |
23 | ||
24 | int gl_isinff (float x) | |
25 | { | |
26 | return x < -FLT_MAX || x > FLT_MAX; | |
27 | } | |
28 | ||
29 | int gl_isinfd (double x) | |
30 | { | |
31 | return x < -DBL_MAX || x > DBL_MAX; | |
32 | } | |
33 | ||
34 | int gl_isinfl (long double x) | |
35 | { | |
36 | return x < -LDBL_MAX || x > LDBL_MAX; | |
37 | } |