1 /* RotateDefs.h -- Rotate functions 2 2015-03-25 : Igor Pavlov : Public domain */ 3 4 #ifndef __ROTATE_DEFS_H 5 #define __ROTATE_DEFS_H 6 7 #ifdef _MSC_VER 8 9 #include <stdlib.h> 10 11 /* don't use _rotl with MINGW. It can insert slow call to function. */ 12 13 /* #if (_MSC_VER >= 1200) */ 14 #pragma intrinsic(_rotl) 15 #pragma intrinsic(_rotr) 16 /* #endif */ 17 18 #define rotlFixed(x, n) _rotl((x), (n)) 19 #define rotrFixed(x, n) _rotr((x), (n)) 20 21 #else 22 23 /* new compilers can translate these macros to fast commands. */ 24 25 #define rotlFixed(x, n) (((x) << (n)) | ((x) >> (32 - (n)))) 26 #define rotrFixed(x, n) (((x) >> (n)) | ((x) << (32 - (n)))) 27 28 #endif 29 30 #endif 31
