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