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

int main(int argc, char *argv[]) {
  void *p = NULL;
  int i;
  int *pI;
  const int *pCI;

  // none of the statements generate errors or warnings
  pI = &i;
  pCI = pI;
  pI = p;

  pI = malloc(sizeof(int));
  pI = malloc(100);

  if ( p == pCI ) printf("equal\n");
  else printf("not equal\n");

  return EXIT_SUCCESS;
}