#include <stdio.h>

/* Output: We attempt to pass two pointers to g - not successful - the compiler finds out */

void g(int *fp1, int *fp2){
  *fp1 = *fp1 + 1;
  *fp2 = 6;    
  printf("*fp1 + *fp2 = %d + %d = %d\n", *fp1, *fp2, *fp1 + *fp2);
}

int main(void) {

  int i = 3,
      j = 4;
  
  g(&(i + 1), &(j + 2));                            /* Invalid lvalues */
  printf("i + j = %d + %d = %d\n", i, j, i + j);  
  
  return 0;
}