timer.cpp

vc++net很不错的一个工具

#include "StdAfx.h"
#include "timer.h"

CTimer::CTimer(void)
{
	
        m_overhead = 0;
        Start(); 
        m_overhead = Stop(); 
}

CTimer::~CTimer(void)
{
}

void  CTimer::Start(void)
    {
        m_start = theCycleCount();
    }
	unsigned __int64 CTimer::Stop(void)
    {
		
        return theCycleCount()-m_start-m_overhead;
    }