[C] 몇초간 정지 시키기

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

void sleep(int nbr_seconds);

void main() {
        int x;
        int wait=13;
        
        printf("\\Delay for %d seconds\n",wait);
        printf(">");

        for(x=1;x<=wait;x++) {
                printf("aaaaaaaaaaaaa");
                fflush(stdout); //퍼버가 있는 기계가 도트를 출력하도록 한다
                sleep((int)1);
        }
        printf("Done!\n");
}

void sleep(int nbr_seconds) {
        clock_t goal;
        goal = (nbr_seconds*CLOCKS_PER_SEC) + clock();
        while(goal>clock()){;}
}