ReactOS 0.4.15-dev-7887-g64a59a1
isinf.c
Go to the documentation of this file.
1/*
2 * isinf function
3 *
4 * Copyright 2008 Petr Sumbera
5 *
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.
10 *
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.
15 *
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
19 */
20
21#include "config.h"
22#include "wine/port.h"
23
24#if !defined(HAVE_ISINF) && !defined(isinf)
25
26#ifdef HAVE_IEEEFP_H
27#include <ieeefp.h>
28
29int isinf(double x)
30{
31 return (!(finite(x) || isnand(x)));
32}
33
34#elif defined(HAVE_FLOAT_H) && defined(HAVE__ISNAN) && defined(HAVE__FINITE)
35#include <float.h>
36
37int isinf(double x)
38{
39 return (!(_finite(x) || _isnan(x)));
40}
41
42#else
43#error No isinf() implementation available.
44#endif
45
46#endif /* !defined(HAVE_ISINF) && !defined(isinf) */
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
_Check_return_ __MINGW_NOTHROW _CRTIMP int __cdecl _isnan(_In_ double)
_Check_return_ __MINGW_NOTHROW _CRTIMP int __cdecl _finite(_In_ double)
#define isinf(x)
Definition: mingw_math.h:94