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| author | Eric Haszlakiewicz <erh+git@nimenees.com> | 2014-03-02 12:16:37 -0500 |
|---|---|---|
| committer | Eric Haszlakiewicz <erh+git@nimenees.com> | 2014-03-02 12:16:37 -0500 |
| commit | e6f1322b5e0fbbd5b8767b60c5fe34ff4468ec42 (patch) | |
| tree | 268b98c1cc6987a728d8646a34e37881169010e3 /math_compat.h | |
| parent | db117ca02bdd744a54f7258a2927aa97edbc5f0d (diff) | |
| download | json-c-e6f1322b5e0fbbd5b8767b60c5fe34ff4468ec42.tar.gz | |
Issue#114: check for the presence of isnan and isinf, and provide compat macros on MSCV where _isnan and _finite exist instead.
Diffstat (limited to 'math_compat.h')
| -rw-r--r-- | math_compat.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/math_compat.h b/math_compat.h new file mode 100644 index 0000000..4a2721e --- /dev/null +++ b/math_compat.h @@ -0,0 +1,20 @@ +#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 + +#endif |