text: #ifndef _POINTERS_H_
  #define _POINTERS_H_
  void print_name(char *name, void (*f)(char *));
  void array_iterator(int *array, size_t size, void (*action)(int));
  int int_index(int *array, int size, int (*cmp)(int));
  #endif  /* _POINTERS_H_ */
  
  