/*
 * loop.c
 */

#include <stdio.h>

void showit(int n){
  printf(" %i \n", n);
}

/* call what(n) in a loop */
void loop(int count, int stop, void (*what)(int n)){
  if (count <= stop){
    what(count);
    loop(count+1, stop, what);
  }
}

int main(){
  loop(1, 10, &showit);
  return 0;
}