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json-c/math_compat.h

math_compat.h 329 B
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Issue#114: check for the presence of isnan and isinf, and provide compat macros on MSCV where _isnan and _finite exist instead.
11 years ago
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  1. #ifndef __math_compat_h

  2. #define __math_compat_h

  3. 

  4. /* Define isnan and isinf on Windows/MSVC */

  5. 

  6. #ifndef HAVE_DECL_ISNAN

  7. # ifdef HAVE_DECL__ISNAN

  8. #include <float.h>

  9. #define isnan(x) _isnan(x)

  10. # endif

  11. #endif

  12. 

  13. #ifndef HAVE_DECL_ISINF

  14. # ifdef HAVE_DECL__FINITE

  15. #include <float.h>

  16. #define isinf(x) (!_finite(x))

  17. # endif

  18. #endif

  19. 

  20. #endif

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