Struct BoundedDeque 

pub struct BoundedDeque<T> { /* private fields */ }

Implementations

impl<T> BoundedDeque<T>

pub fn new(maxlen: usize) -> Self

Creates a new bounded deque with the given maximum length.

pub fn len(&self) -> usize

Returns the current number of items in the deque.

pub fn set_maxlen(&mut self, new_maxlen: usize)

Sets a new maximum length for the deque. If the new maxlen is smaller than the current length, elements are removed from the start until the length is within the new limit.

pub fn get_maxlen(&self) -> usize

Returns the current maximum length of the deque.

pub fn push_back(&mut self, item: T)

Adds an item to the end. If the deque is at capacity, removes from the start first.

pub fn push_front(&mut self, item: T)

Adds an item to the start. If the deque is at capacity, removes from the end first.

pub fn pop_front(&mut self) -> Option<T>

Removes and returns the start item, if any.

pub fn pop_back(&mut self) -> Option<T>

Removes and returns the end item, if any.

pub fn front(&self) -> Option<&T>

Returns a reference to the start item, if any.

pub fn back(&self) -> Option<&T>

Returns a reference to the end item, if any.

pub fn is_empty(&self) -> bool

Checks if the deque is empty.

pub fn clear(&mut self)

Clears the deque.

pub fn last(&self) -> Option<&T>

Returns a reference to the last (most recently added) item, if any.

pub fn last_mut(&mut self) -> Option<&mut T>

Returns a mutable reference to the last (most recently added) item, if any.

Trait Implementations

impl<T: Clone> Clone for BoundedDeque<T>

fn clone(&self) -> BoundedDeque<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for BoundedDeque<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.