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/*
* endianness.h
*
* Endian-dependant encoding/decoding, header
*
* Copyright (c) 1998, 1999, 2000, 2001 Virtual Unlimited B.V.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef _ENDIANNESS_H
#define _ENDIANNESS_H
#include "beecrypt.h"
#ifdef __cplusplus
inline int16_t swap16(int16_t n)
{
return ( ((n & 0xff) << 8) |
((n & 0xff00) >> 8) );
}
inline uint16_t swapu16(uint16_t n)
{
return ( ((n & 0xffU) << 8) |
((n & 0xff00U) >> 8) );
}
inline int32_t swap32(int32_t n)
{
return ( ((n & 0xff) << 24) |
((n & 0xff00) << 8) |
((n & 0xff0000) >> 8) |
((n & 0xff000000) >> 24) );
}
inline uint32_t swapu32(uint32_t n)
{
return ( ((n & 0xffU) << 24) |
((n & 0xff00U) << 8) |
((n & 0xff0000U) >> 8) |
((n & 0xff000000U) >> 24) );
}
inline int64_t swap64(int64_t n)
{
return ( ((n & ((int64_t) 0xff) ) << 56) |
((n & ((int64_t) 0xff) << 8) << 40) |
((n & ((int64_t) 0xff) << 16) << 24) |
((n & ((int64_t) 0xff) << 24) << 8) |
((n & ((int64_t) 0xff) << 32) >> 8) |
((n & ((int64_t) 0xff) << 40) >> 24) |
((n & ((int64_t) 0xff) << 48) >> 40) |
((n & ((int64_t) 0xff) << 56) >> 56) );
}
#else
/*@-exportlocal@*/
/**
*/
/*@unused@*/
int16_t swap16 (int16_t n)
/*@*/;
/**
*/
uint16_t swapu16(uint16_t n)
/*@*/;
/**
*/
/*@unused@*/
int32_t swap32 (int32_t n)
/*@*/;
/**
*/
uint32_t swapu32(uint32_t n)
/*@*/;
/**
*/
/*@unused@*/
int64_t swap64 (int64_t n)
/*@*/;
/*@=exportlocal@*/
#endif
#endif
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