// pointer-compare

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

int main() {
  int array[5] = {0, 1, 2, 3, 4};
  int brray[5] = {0, 1, 2, 3, 4};
  int *p = array + 2;
  int *q = array + 4;
  int *r = brray + 4;
  if (p > q) abort();  printf("compare OK\n");
  if (p < r) abort();  printf("compare OK\n");	// illegal comparison
  return 0;
}