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////////////////////////////////////////////////////////////////////////////////
// The Loki Library
// Copyright (c) 2005 Peter Kmmel
// Permission to use, copy, modify, distribute and sell this software for any
// purpose is hereby granted without fee, provided that the above copyright
// notice appear in all copies and that both that copyright notice and this
// permission notice appear in supporting documentation.
// The authors make no representations about the
// suitability of this software for any purpose. It is provided "as is"
// without express or implied warranty.
////////////////////////////////////////////////////////////////////////////////
#ifndef LOKI_TEST_TIMER_H
#define LOKI_TEST_TIMER_H
// $Id: timer.h 823 2007-05-08 10:48:40Z lfittl $
#include <ctime>
#include <iostream>
#include <stdlib.h>
#include <cmath>
class Timer
{
public:
Timer()
{
t100 = 0;
}
void start()
{
t0 = clock();
}
void stop()
{
t1 = clock();
}
int t()
{
return t1-t0;
}
double sec(int t)
{
return floor(100.0*double(t)/1000.0 )/100.0;
}
int rel(int t)
{
return ( t100==0 ? 100 : static_cast<int>(floor(100.0*t/t100+0.5)) );
}
double speedup(int t)
{
double tup=t;
return (tup!=0 ? floor(100.0*(t100!=0?t100:tup)/tup+0.5)/100 : 1);
}
double t100;
void print(int t, const char* s)
{
std::cout << s << "\tseconds: " << sec(t) << "\trelative time: " << rel(t) << "%\tspeed-up factor: " << speedup(t) << "" << std::endl;
}
private:
int t0;
int t1;
};
#endif
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