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2e65b52f | 1 | /* Test for positive or negative infinity. |
5e69ceb7 | 2 | Copyright (C) 2007-2014 Free Software Foundation, Inc. |
2e65b52f LC |
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 | |
005de2e8 | 15 | with this program; if not, see <http://www.gnu.org/licenses/>. */ |
2e65b52f LC |
16 | |
17 | /* Written by Ben Pfaff <blp@gnu.org>, 2008. */ | |
18 | ||
19 | #include <config.h> | |
20 | ||
21 | #include <float.h> | |
22 | ||
231c0e0e LC |
23 | int |
24 | gl_isinff (float x) | |
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25 | { |
26 | return x < -FLT_MAX || x > FLT_MAX; | |
27 | } | |
28 | ||
231c0e0e LC |
29 | int |
30 | gl_isinfd (double x) | |
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31 | { |
32 | return x < -DBL_MAX || x > DBL_MAX; | |
33 | } | |
34 | ||
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35 | int |
36 | gl_isinfl (long double x) | |
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37 | { |
38 | return x < -LDBL_MAX || x > LDBL_MAX; | |
39 | } |