blob: 751c65995ed1ea887d113510fefec6af534058e1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
#ifndef __math_compat_h
#define __math_compat_h
/* Define isnan and isinf on Windows/MSVC */
#ifndef HAVE_DECL_ISNAN
# ifdef HAVE_DECL__ISNAN
#include <float.h>
#define isnan(x) _isnan(x)
# endif
#endif
#ifndef HAVE_DECL_ISINF
# ifdef HAVE_DECL__FINITE
#include <float.h>
#define isinf(x) (!_finite(x))
# endif
#endif
#ifdef WIN32
#ifndef NAN
const unsigned long __json_nan[2] = {0xffffffff, 0x7fffffff};
#define NAN (*(const double*) __json_nan)
#endif
#else
#ifndef HAVE_DECL_NAN
#error This platform does not have nan()
#endif
#endif
#ifdef WIN32
#include <float.h>
#ifndef INFINITY
#define INFINITY DBL_MAX
#endif
#else
#ifndef HAVE_DECL_INFINITY
#error This platform does not have INFINITY
#endif
#endif
#endif
|
