/*
 * Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef MANGOS_BYTECONVERTER_H
#define MANGOS_BYTECONVERTER_H

/** ByteConverter reverse your byte order.  This is use
    for cross platform where they have different endians.
 */

#include<Platform/Define.h>
#include<algorithm>

namespace ByteConverter
{
    template<size_t T>
        inline void convert(char *val)
    {
        std::swap(*val, *(val + T - 1));
        convert<T - 2>(val + 1);
    }

    template<> inline void convert<0>(char *) {}
    template<> inline void convert<1>(char *) {}            // ignore central byte

    template<typename T> inline void apply(T *val)
    {
        convert<sizeof(T)>((char *)(val));
    }
}

#if MANGOS_ENDIAN == MANGOS_BIGENDIAN
template<typename T> inline void EndianConvert(T& val) { ByteConverter::apply<T>(&val); }
template<typename T> inline void EndianConvertReverse(T&) { }
#else
template<typename T> inline void EndianConvert(T&) { }
template<typename T> inline void EndianConvertReverse(T& val) { ByteConverter::apply<T>(&val); }
#endif

template<typename T> void EndianConvert(T*);         // will generate link error
template<typename T> void EndianConvertReverse(T*);  // will generate link error

inline void EndianConvert(uint8&) { }
inline void EndianConvert( int8&) { }
inline void EndianConvertReverse(uint8&) { }
inline void EndianConvertReverse( int8&) { }

#endif
