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Diffstat (limited to 'src/libs/3rdparty/botan/src/lib/utils/rotate.h')
-rw-r--r-- | src/libs/3rdparty/botan/src/lib/utils/rotate.h | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/utils/rotate.h b/src/libs/3rdparty/botan/src/lib/utils/rotate.h deleted file mode 100644 index 4bb76c9ed4..0000000000 --- a/src/libs/3rdparty/botan/src/lib/utils/rotate.h +++ /dev/null @@ -1,104 +0,0 @@ -/* -* Word Rotation Operations -* (C) 1999-2008,2017 Jack Lloyd -* -* Botan is released under the Simplified BSD License (see license.txt) -*/ - -#ifndef BOTAN_WORD_ROTATE_H_ -#define BOTAN_WORD_ROTATE_H_ - -#include <botan/types.h> - -namespace Botan { - -/** -* Bit rotation left by a compile-time constant amount -* @param input the input word -* @return input rotated left by ROT bits -*/ -template<size_t ROT, typename T> -inline T rotl(T input) - { - static_assert(ROT > 0 && ROT < 8*sizeof(T), "Invalid rotation constant"); - return static_cast<T>((input << ROT) | (input >> (8*sizeof(T) - ROT))); - } - -/** -* Bit rotation right by a compile-time constant amount -* @param input the input word -* @return input rotated right by ROT bits -*/ -template<size_t ROT, typename T> -inline T rotr(T input) - { - static_assert(ROT > 0 && ROT < 8*sizeof(T), "Invalid rotation constant"); - return static_cast<T>((input >> ROT) | (input << (8*sizeof(T) - ROT))); - } - -/** -* Bit rotation left, variable rotation amount -* @param input the input word -* @param rot the number of bits to rotate, must be between 0 and sizeof(T)*8-1 -* @return input rotated left by rot bits -*/ -template<typename T> -inline T rotl_var(T input, size_t rot) - { - return rot ? static_cast<T>((input << rot) | (input >> (sizeof(T)*8 - rot))) : input; - } - -/** -* Bit rotation right, variable rotation amount -* @param input the input word -* @param rot the number of bits to rotate, must be between 0 and sizeof(T)*8-1 -* @return input rotated right by rot bits -*/ -template<typename T> -inline T rotr_var(T input, size_t rot) - { - return rot ? static_cast<T>((input >> rot) | (input << (sizeof(T)*8 - rot))) : input; - } - -#if BOTAN_USE_GCC_INLINE_ASM - -#if defined(BOTAN_TARGET_ARCH_IS_X86_64) || defined(BOTAN_TARGET_ARCH_IS_X86_32) - -template<> -inline uint32_t rotl_var(uint32_t input, size_t rot) - { - asm("roll %1,%0" : "+r" (input) : "c" (static_cast<uint8_t>(rot))); - return input; - } - -template<> -inline uint32_t rotr_var(uint32_t input, size_t rot) - { - asm("rorl %1,%0" : "+r" (input) : "c" (static_cast<uint8_t>(rot))); - return input; - } - -#endif - -#endif - - -template<typename T> -BOTAN_DEPRECATED("Use rotl<N> or rotl_var") -inline T rotate_left(T input, size_t rot) - { - // rotl_var does not reduce - return rotl_var(input, rot % (8 * sizeof(T))); - } - -template<typename T> -BOTAN_DEPRECATED("Use rotr<N> or rotr_var") -inline T rotate_right(T input, size_t rot) - { - // rotr_var does not reduce - return rotr_var(input, rot % (8 * sizeof(T))); - } - -} - -#endif |