diff options
Diffstat (limited to 'src/include/port/win32_port.h')
| -rw-r--r-- | src/include/port/win32_port.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/include/port/win32_port.h b/src/include/port/win32_port.h index d31c28f7d44..b398cd3b975 100644 --- a/src/include/port/win32_port.h +++ b/src/include/port/win32_port.h @@ -502,7 +502,14 @@ typedef unsigned short mode_t; #define W_OK 2 #define R_OK 4 +/* + * isinf() and isnan() should per spec be in <math.h>, but MSVC older than + * 2013 does not have them there. It does have _fpclass() and _isnan(), but + * they're in <float.h>, so include that here even though it means float.h + * percolates to our whole tree. Recent versions don't require any of this. + */ #if (_MSC_VER < 1800) +#include <float.h> #define isinf(x) ((_fpclass(x) == _FPCLASS_PINF) || (_fpclass(x) == _FPCLASS_NINF)) #define isnan(x) _isnan(x) #endif |