31 lines
626 B
C
31 lines
626 B
C
/* RotateDefs.h -- Rotate functions
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2015-03-25 : Igor Pavlov : Public domain */
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#ifndef __ROTATE_DEFS_H
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#define __ROTATE_DEFS_H
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#ifdef _MSC_VER
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#include <stdlib.h>
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/* don't use _rotl with MINGW. It can insert slow call to function. */
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/* #if (_MSC_VER >= 1200) */
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#pragma intrinsic(_rotl)
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#pragma intrinsic(_rotr)
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/* #endif */
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#define rotlFixed(x, n) _rotl((x), (n))
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#define rotrFixed(x, n) _rotr((x), (n))
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#else
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/* new compilers can translate these macros to fast commands. */
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#define rotlFixed(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
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#define rotrFixed(x, n) (((x) >> (n)) | ((x) << (32 - (n))))
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#endif
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#endif
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