@ -35,6 +35,7 @@ void stack_push(Stack* stack,void* element) {
void* stack_pop(Stack* stack) {
assert( !(stack_isEmpty(stack)) );
free(stack->data + stack->top_index);
stack->top_index--;
void* to_return = *(stack->data + stack->top_index);
*(stack->data + stack->top_index) = NULL;