#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include "ZRandom.h"

class ZTimer 
{
    clock_t t1;
    clock_t t2;
public:
    ZTimer() : t1(::clock()), t2(t1) {}
    int elapsed() { return (int)(((t2 - t1) * 1000.0) / CLOCKS_PER_SEC); }
    int split() { t2 = ::clock(); return elapsed(); }
};

int main(int ac,char** av) 
{

    enum { dtSample = 30000 };
    {
        ZRandom o;
        ZTimer t;
        int n = 0;
        do {
            for (int i=0; i<1000000; ++i) {
                unsigned v = o.getValue();
            }
            ++n;
        } while (t.split() < dtSample);
        int dt = t.elapsed();
        printf("Computed %d million primes in %d MS - %0.1f m/s \n",n,dt,((n * 1000.0)/dt));
    }

    return 0;
}