timer.h

A very simple library that encapsulates clock() from <time.h>, making life easier.

cmc_timer

struct cmc_timer
{
    clock_t start;
    clock_t stop;
    double result;
};

• clock_t start - Start of timing
• clock_t stop - End of timing
• double result - Result in milliseconds

cmc_timer_start

Starts the timer by setting start with clock().

#define cmc_timer_start(timer)

• timer - A struct cmc_timer variable

cmc_timer_stop

Sets the stop variable with clock() and calculates the result in milliseconds.

#define cmc_timer_start(timer)

• timer - A struct cmc_timer variable

Example

#include <stdio.h>

#include "utl/timer.h"

int main(void)
{
    struct cmc_timer t;

    cmc_timer_start(t);

    size_t total = 0;

    for (size_t i = 0; i < 1000000000; i++)
        total += i;

    cmc_timer_stop(t);

    printf("Sum took %.0lf milliseconds to calculate\n", t.result);
}