/usr/include/botan-1.10/botan/rotate.h is in libbotan1.10-dev 1.10.8-2+deb8u2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | /*
* 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 {
/**
* Bit rotation left
* @param input the input word
* @param rot the number of bits to rotate
* @return input rotated left by rot bits
*/
template<typename T> inline T rotate_left(T input, size_t rot)
{
if(rot == 0)
return input;
return static_cast<T>((input << rot) | (input >> (8*sizeof(T)-rot)));;
}
/**
* Bit rotation right
* @param input the input word
* @param rot the number of bits to rotate
* @return input rotated right by rot bits
*/
template<typename T> inline T rotate_right(T input, size_t rot)
{
if(rot == 0)
return input;
return static_cast<T>((input >> rot) | (input << (8*sizeof(T)-rot)));
}
}
#endif
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