T_BOOL TutPtrAryItemExists(ptr_ary, item) 
T_PTR_ARY ptr_ary; 
T_PTR item; 

T_PTR_ARY ptr_ary; 
T_INT4 i, *int_ptr, *mark_ptr; 
 
/* create the pointer array with initial size of 30 */ 
ptr_ary = TutPtrAryCreate(30); 
/* fill it up with 25 entries */ 
for (i = 0; i < 25; i++) { 
  /* allocate the space for the next element */ 
  T_MALLOC(int_ptr, sizeof(T_INT4), T_INT4 *); 
  *int_ptr = i; 
  /* append the item to the array, ignore the index */ 
  TutPtrAryAppend(ptr_ary, int_ptr, NULL); 
  if (i == 13) { 
    mark_ptr = int_ptr; 
  } 
}  
/* perform various pointer array operations */ 
. 
. 
. 
if (TutPtrAryItemExists(ptr_ary, mark_ptr)) { 
  TutOut("Marked item is still in the array \n"); 
} 
else { 
  TutOut("Marked item has been removed from the array \n"); 
}