nel/3rdparty/seven_zip/RotateDefs.h

   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