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| author | Alexey Kopytov <Alexey.Kopytov@sun.com> | 2009-03-25 15:48:29 +0300 |
|---|---|---|
| committer | Alexey Kopytov <Alexey.Kopytov@sun.com> | 2009-03-25 15:48:29 +0300 |
| commit | 38828c175744a9cbdf9aa82a4975162770130656 (patch) | |
| tree | 14174933b6b2a2738ea715fb4d699627731962c5 /include | |
| parent | 724d3e8a0609930c060d1ebd206e5dda072ef9db (diff) | |
| parent | 73cb9b6e04a110c3fd71f68bcf3bc0cbfcc4f326 (diff) | |
| download | mariadb-git-38828c175744a9cbdf9aa82a4975162770130656.tar.gz | |
Manual merge.
Diffstat (limited to 'include')
| -rw-r--r-- | include/my_global.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/include/my_global.h b/include/my_global.h index ad86aeb749f..803315e3dcd 100644 --- a/include/my_global.h +++ b/include/my_global.h @@ -905,10 +905,20 @@ 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 -#define my_isinf(X) (!isfinite(X) && !isnan(X)) +/* 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 /* Define missing math constants. */ |