winedib.drv: Implement PatBlt.
[wine/dibeng-hd.git] / libs / port / isinf.c
blobe0c35ad17719929341dab786845f8ccda85271dd
1 /*
2 * isinf function
4 * Copyright 2008 Petr Sumbera
6 * This 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 * This 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 this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include "config.h"
22 #include "wine/port.h"
24 #ifndef HAVE_ISINF
26 #ifdef HAVE_IEEEFP_H
27 #include <ieeefp.h>
29 int isinf(double x)
31 return (!(finite(x) || isnand(x)));
34 #else
35 #error No isinf() implementation available.
36 #endif
38 #endif /* HAVE_ISINF */