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| #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
|
| #ifndef HAVE_DECL_NAN
| #error This platform does not have nan()
| #endif
|
| #ifndef HAVE_DECL_INFINITY
| #error This platform does not have INFINITY
| #endif
|
| #endif
|
|
