Using timing macros

timing_0.2.c

#include <timing.h>
#define DEBUG 1

// ...
{
    TIMEIT_INIT(timer_name);
    int i;

    TIMEIT_START(timer_name);
    for ( i = 0 ; i < 10000 ; i++ ){
        my_time_critical_function();
    }
    TIMEIT_STOP(timer_name);
    
    TIMEIT_SHOWME(timer_name);
}
// ...