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39 lines
768 B
Diff
39 lines
768 B
Diff
--- a/math_compat.h
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+++ b/math_compat.h
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@@ -6,31 +6,9 @@
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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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-
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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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-
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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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-
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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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-
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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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+#undef isnan
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+#define isnan(x) __builtin_isnan(x)
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+#undef isinf
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+#define isinf(x) __builtin_isinf(x)
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#endif
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