#include <stdio.h>
extern void getinfo(const char *key,
		    void **a, int *i1);

int main(void) {
  int i1;

  void *array;

  getinfo("a", &array, &i1);
  if ( array != NULL ) {
    printf ("a is defined. correct\n");
  }
  else {
    printf ("a is NOT defined. WRONG\n");
  }

  getinfo("b", &array, &i1);
  if ( array != NULL ) {
    printf ("b is defined. WRONG\n");
  }
  else {
    printf ("b is NOT defined. correct\n");
  }
}