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This commit is contained in:
Alexey Kopytov 2009-03-25 16:19:53 +03:00
commit 4ee0f6a64c
2 changed files with 33 additions and 2 deletions
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14
include/my_global.h
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@ -831,9 +831,19 @@ typedef SOCKET_SIZE_TYPE size_socket;
#endif
#ifdef HAVE_ISINF
/* isinf() can be used in both C and C++ code */
#define my_isinf(X) isinf(X)
/* Check if C compiler is affected by GCC bug #39228 */
#if !defined(__cplusplus) && defined(HAVE_BROKEN_ISINF)
/* Force store/reload of the argument to/from a 64-bit double */
static inline double my_isinf(double x)
{
volatile double t= x;
return isinf(t);
}
#else
/* System-provided isinf() is available and safe to use */
#define my_isinf(X) isinf(X)
#endif
#else /* !HAVE_ISINF */
#define my_isinf(X) (!finite(X) && !isnan(X))
#endif