framecounter example

#include <iostream>
#include <ctime>
#include <fstream>
#define FRAME_RT 0.0333333f             //this is 1 divided by 30, each time stamp for 30 FPS

int main()
{
    std::ofstream f("check.txt");       //check with word count after you run the code
    int a, b;
    time_t clk;
    while (clock() < CLOCKS_PER_SEC)    //count until 1 second
    {
        clk = clock();
        a = 25; b = 70;

        for (int i = 0; i < 100; i++) {a = a^b; b = a^b; a = a^b;}  //whatever, just process test

        f << "FPS ";    //frame indicator

        while((float)(clock() - clk) / CLOCKS_PER_SEC < FRAME_RT);  //wait until 1/30 of a second
    }
    f.close();
    return 0;
}