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#include "timer.h"
Timer::Timer()
{
flag = 0;
start();
return;
}
void Timer::start()
{
t1 = clock();
flag |= 1;
return;
}
void Timer::stop()
{
if ( flag&1 ) {
t2 = clock();
flag |= 2;
}
return;
}
void Timer::print()
{
if ( (flag&3) != 3) return;
cpu_time_used = ((double) (t2 - t1)) / CLOCKS_PER_SEC;
printf("Total CPU time used: %g seconds.\n", cpu_time_used);
return;
}
double Timer::elapse()
{
if ( (flag&3) != 3) return 0.;
else return ((double) (t2 - t1)) / CLOCKS_PER_SEC;
}
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