Gets the value at the back of the deque without removing it.
value_type deque_peek_back(const Deque* deque);
| Name | Type | Description |
|---|---|---|
| deque | const Deque* | A pointer to the deque. |
Returns: The value from the back of the deque.
Count checking is done via assert, so if it’s needed in a production environment, it will need to be handled by the caller. The behaviour is otherwise undefined if you try and get an item from an empty deque.
DEQUE_DEFINE_H(IntDeque, int_deque, int)
DEQUE_DEFINE_C(IntDeque, int_deque, int)
IntDeque* deque = int_deque_create();
int_deque_push_back(deque, 2);
int value = int_deque_peek_back(deque);
printf("Back: %d\n", value);
// Output:
// Back: 2
int_deque_free(deque);