stopwatch.h

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#ifndef STOPWATCH_H
#define STOPWATCH_H

#include <sys/time.h>
#include <time.h>

class stopwatch {

    public:
    
        stopwatch() : s() {};
    
        void start();
        
        double time();
    
        double stop();

    private:
        timeval s, tmp;
        double t;

};

#endif

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