timer.cpp
ae3e0a6678e9efficient_neuronet

timer.cpp
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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;
			}