#include <stdio.h>

/* Input: Same as above, but we attempt to use i and j from main in f. The compiler spots the error. */
 
void f(int fp1, int fp2){
  printf("fp1 + fp2 = %d + %d = %d\n", fp1, fp2, i + j);      /* i and j are undeclared */
}

int main(void) {
  int i = 3,
      j = 4;
  
  f(i, j);

  printf("i + j = %d + %d = %d\n", i, j, i + j);
  
  return 0;
}