A double-ended queue implemented with a growable ring buffer.
This queue has O(1) amortized inserts and removals from both ends of the container. It also has O(1) indexing like a vector. The contained elements are not required to be copyable, and the queue will be sendable if the contained type is sendable.
| Drain | 
 A draining iterator over the elements of a   | 
| IntoIter | 
 An owning iterator over the elements of a   | 
| Iter | 
 An iterator over the elements of a   | 
| IterMut | 
 A mutable iterator over the elements of a   | 
| VecDeque | 
 A double-ended queue implemented with a growable ring buffer.  | 
    © 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
    https://doc.rust-lang.org/std/collections/vec_deque/index.html