Thread: timing my program

how do i time my program?

i googled the topic but all teh results were ANSI C and they didnt work.


On a side note where do you get information on C, i can only find C++ and C#. MSDN doesnt even have C anymore.

What do you mean time your program? Like make it close after a certain amount of time?

You will probably have to use the time.h header, then compare the current time with the time limit in a loop and close the program if the limit is exceeded.

I expect you mean time it for example to do performance comparisons, in which case this model will work:

Code:

#include <clock.h>

int main(void)
{
    clock_t t1, t2;

    t1 = clock();
    ....
    // do something that takes some time 
    .... 
    t2 = clock();
    printf("Time taken: %.2f\n", (double)(t1 - t2) / CLOCKS_PER_SEC);
}

It's reasonably portable and should work for anything that takes more than a few hundreds of a second - for really short times you'll need something more accurate.

--
Mats

that worked perfectly thanks so much