#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>

#include <inttypes.h>
#include <time.h>
#include <sys/time.h>

#define	NTIMES		1000000

// ---------------------------------------------------------------------------

void do_something(void)
{
}

// ---------------------------------------------------------------------------

int64_t microseconds(void)
{
    struct timeval now;

    gettimeofday(&now, NULL);
    return now.tv_sec*1000000 + now.tv_usec;
}

int main(void)
{
//  START OUR TIMING
    int64_t start = microseconds();

//  DO SOMETHING THAT WILL OCCUPY THE CPU
    for(int t=0 ; t<NTIMES ; ++t) {
        do_something();
    }

//  PRINT THE TIME TAKEN
    printf("%" PRId64 "usecs\n", microseconds() - start);

    exit(EXIT_SUCCESS);
}