Timing C Code with Glib

timing_0.3.c

#include <glib.h>

// ...
{
    GTimer* timeit = g_timer_new();
    int i;

    g_timer_start(timeit);
    for ( i = 0 ; i < 10000 ; i++ ){
        my_time_critical_function();
    }
    g_timer_stop(timeit);
    
    printf("It took %f seconds\n", g_timer_elapsed(timeit, NULL));
}
// ...