37 lines
644 B
C
37 lines
644 B
C
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#ifndef __math_compat_h
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#define __math_compat_h
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/**
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* @file
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* @brief Do not use, json-c internal, may be changed or removed at any time.
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*/
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/* Define isnan, isinf, infinity and nan on Windows/MSVC */
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#ifndef HAVE_DECL_ISNAN
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# ifdef HAVE_DECL__ISNAN
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#include <float.h>
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#define isnan(x) _isnan(x)
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# endif
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#endif
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#ifndef HAVE_DECL_ISINF
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# ifdef HAVE_DECL__FINITE
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#include <float.h>
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#define isinf(x) (!_finite(x))
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# endif
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#endif
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#ifndef HAVE_DECL_INFINITY
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#include <float.h>
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#define INFINITY (DBL_MAX + DBL_MAX)
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#define HAVE_DECL_INFINITY
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#endif
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#ifndef HAVE_DECL_NAN
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#define NAN (INFINITY - INFINITY)
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#define HAVE_DECL_NAN
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#endif
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#endif
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