//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TWArchive.cpp
// = Version	:   ver2.0
// = Author		:   xlc
// = CreateDate	:   2002-09-09
// = Description:   类的定义
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#include "StdAfx.h"
#include "TWArchive.h"

TWArchive::TWArchive()
	: m_iCur(0),m_iLength(0)
{

}

TWArchive::~TWArchive()
{

}

//清空并初始化为初始状态
void TWArchive::Clear()
{
	m_iLength = 0;
	m_iCur = 0;
}

//移动游标
void TWArchive::MoveTo(long i)
{
	if (i < 0)
	{
		i = 0;
	}

	m_iCur = i;
}

long TWArchive::GetLength()const
{
	return m_iLength;
}

long TWArchive::GetCur()const
{
	return m_iCur;
}

bool TWArchive::IsOut()const
{
	return m_iCur >= GetLength();
}

//移动游标
void TWArchive::MoveToFirst()
{
	MoveTo(0);
}

void TWArchive::MoveToLast()
{
	MoveTo(GetLength() - 1);
}

void TWArchive::MoveOut()
{
	MoveTo(GetLength());
}

void TWArchive::MoveToNext(long step)
{
	MoveTo(GetCur() + step);
}

void TWArchive::MoveToPre(long step)
{
	MoveTo(GetCur() - step);
}

//当前游标位置读取，不移动游标
void TWArchive::Read(char &val)
{
	Read(&val, sizeof(val));
}
void TWArchive::Read(bool &val)
{
	Read(&val, sizeof(val));
}

void TWArchive::Read(short &val)
{
	Read(&val, sizeof(val));
}

void TWArchive::Read(int &val)
{
	Read(&val, sizeof(val));
}

void TWArchive::Read(long &val)
{
	Read(&val, sizeof(val));
}

void TWArchive::Read(float &val)
{
	Read(&val, sizeof(val));
}

void TWArchive::Read(double &val)
{
	Read(&val, sizeof(val));
}

void TWArchive::Read(long double &val)
{
	Read(&val, sizeof(val));
}

//当前游标位置写，不移动游标
void TWArchive::Write(char val)
{
	Write(&val, sizeof(val));
}

void TWArchive::Write(bool val)
{
	Write(&val, sizeof(val));
}

void TWArchive::Write(short val)
{
	Write(&val, sizeof(val));
}

void TWArchive::Write(int val)
{
	Write(&val, sizeof(val));
}

void TWArchive::Write(long val)
{
	Write(&val, sizeof(val));
}

void TWArchive::Write(float val)
{
	Write(&val, sizeof(val));
}

void TWArchive::Write(double val)
{
	Write(&val, sizeof(val));
}

void TWArchive::Write(long double val)
{
	Write(&val, sizeof(val));
}

//末尾添加并后移游标
void TWArchive::Append(void *p, long size)
{
	MoveOut();
	Write(p,size);
	MoveOut();
}

TWArchive& TWArchive::operator<<(char val)
{
	Append(&val, sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator<<(bool val)
{
	Append(&val, sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator<<(short val)
{
	Append(&val, sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator<<(int  val)
{
	Append(&val, sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator<<(long val)
{
	Append(&val, sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator<<(float val)
{
	Append(&val, sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator<<(double val)
{
	Append(&val, sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator<<(long double val)
{
	Append(&val, sizeof(val));
	return *this;
}

//当前游标位置读数据并后移游标
TWArchive& TWArchive::operator>>(char &val)
{
	Read(&val, sizeof(val));
	MoveToNext(sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator>>(bool &val)
{
	Read(&val, sizeof(val));
	MoveToNext(sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator>>(short  &val)
{
	Read(&val, sizeof(val));
	MoveToNext(sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator>>(int  &val)
{
	Read(&val, sizeof(val));
	MoveToNext(sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator>>(long &val)
{
	Read(&val, sizeof(val));
	MoveToNext(sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator>>(float &val)
{
	Read(&val, sizeof(val));
	MoveToNext(sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator>>(double &val)
{
	Read(&val, sizeof(val));
	MoveToNext(sizeof(val));
	return *this;
}

TWArchive& TWArchive::operator>>(long double &val)
{
	Read(&val, sizeof(val));
	MoveToNext(sizeof(val));
	return *this;
}

bool TWArchive::operator> (const TWArchive &ar)const
{
	return false;
}

bool TWArchive::operator< (const TWArchive &ar)const
{
	return false;
}