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Diffstat (limited to 'botan/src/utils/rotate.h')
-rw-r--r-- | botan/src/utils/rotate.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/botan/src/utils/rotate.h b/botan/src/utils/rotate.h new file mode 100644 index 0000000..c8f8d4a --- /dev/null +++ b/botan/src/utils/rotate.h @@ -0,0 +1,30 @@ +/* +* Word Rotation Operations +* (C) 1999-2008 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ + +#ifndef BOTAN_WORD_ROTATE_H__ +#define BOTAN_WORD_ROTATE_H__ + +#include <botan/types.h> + +namespace Botan { + +/* +* Word Rotation Functions +*/ +template<typename T> inline T rotate_left(T input, u32bit rot) + { + return static_cast<T>((input << rot) | (input >> (8*sizeof(T)-rot)));; + } + +template<typename T> inline T rotate_right(T input, u32bit rot) + { + return static_cast<T>((input >> rot) | (input << (8*sizeof(T)-rot))); + } + +} + +#endif |