#pragma once
#include <windows.h>
 
class Timer
{
private:
    unsigned __int64* counters;
    unsigned __int64 freq;
public:
    Timer(int = 1);
    void Start(int = 0);
    float Get(int = 0, int = 1);
public:
    ~Timer(void);
};
 

#include "Timer.h"
 
Timer::Timer(int n)
{
    this->counters = new  unsigned __int64[n];
    QueryPerformanceFrequency((LARGE_INTEGER*)&freq);
}
 
void Timer::Start(int counter) {
    QueryPerformanceCounter((LARGE_INTEGER*)&this->counters[counter]);
}
 
float Timer::Get(int counter, int multiply) {
    unsigned __int64 end;
    QueryPerformanceCounter((LARGE_INTEGER*)&end);
    return (float(end - this->counters[counter]) / freq) * multiply;
}
 
Timer::~Timer(void)
{
    delete [] this->counters;
}