/*Copyright (C) 1999-2007 The Botan Project. All rights reserved.Redistribution and use in source and binary forms, for any use, with or withoutmodification, is permitted provided that the following conditions are met:1. Redistributions of source code must retain the above copyright notice, thislist of conditions, and the following disclaimer.2. Redistributions in binary form must reproduce the above copyright notice,this list of conditions, and the following disclaimer in the documentationand/or other materials provided with the distribution.THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) "AS IS" AND ANY EXPRESS OR IMPLIEDWARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OFMERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE FOR ANY DIRECT,INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OFLIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCEOR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IFADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/// LICENSEHEADER_ENDnamespace QCA { // WRAPNS_LINE/************************************************** Bit/Word Operations Header File                ** (C) 1999-2007 The Botan Project                **************************************************/#ifndef BOTAN_BIT_OPS_H__#define BOTAN_BIT_OPS_H__} // WRAPNS_LINE#include <botan/types.h>namespace QCA { // WRAPNS_LINEnamespace Botan {/************************************************** Rotation Functions                             **************************************************/template<typename T> inline T rotate_left(T input, u32bit rot)   { return (T)((input << rot) | (input >> (8*sizeof(T)-rot))); }template<typename T> inline T rotate_right(T input, u32bit rot)   { return (T)((input >> rot) | (input << (8*sizeof(T)-rot))); }/************************************************** Byte Extraction Function                       **************************************************/template<typename T> inline byte get_byte(u32bit byte_num, T input)   { return (byte)(input >> ((sizeof(T)-1-(byte_num&(sizeof(T)-1))) << 3)); }/************************************************** Byte to Word Conversions                       **************************************************/inline u16bit make_u16bit(byte input0, byte input1)   { return (u16bit)(((u16bit)input0 << 8) | input1); }inline u32bit make_u32bit(byte input0, byte input1, byte input2, byte input3)   { return (u32bit)(((u32bit)input0 << 24) | ((u32bit)input1 << 16) |                     ((u32bit)input2 <<  8) | input3); }inline u64bit make_u64bit(byte input0, byte input1, byte input2, byte input3,                          byte input4, byte input5, byte input6, byte input7)   {   return (u64bit)(((u64bit)input0 << 56) | ((u64bit)input1 << 48) |                   ((u64bit)input2 << 40) | ((u64bit)input3 << 32) |                   ((u64bit)input4 << 24) | ((u64bit)input5 << 16) |                   ((u64bit)input6 <<  8) | input7);   }/************************************************** XOR Functions                                  **************************************************/void xor_buf(byte[], const byte[], u32bit);void xor_buf(byte[], const byte[], const byte[], u32bit);/************************************************** Misc Utility Functions                         **************************************************/bool power_of_2(u64bit);u32bit high_bit(u64bit);u32bit low_bit(u64bit);u32bit significant_bytes(u64bit);u32bit hamming_weight(u64bit);}#endif} // WRAPNS_LINE