std::collections::deque

Status: experimental

Double-ended queue over Vec. Re-bind shape on every mutator.

API details and source

The implementation source contains the complete declarations and implementation notes. The table below lists canonical Gossamer call signatures; every item name links directly to its implementation file.

Item	Canonical signature or declaration	Description
len	fn len(xs: Deque<i64>) -> i64	Element count.
peek_back	fn peek_back(xs: Deque<i64>) -> i64	Back element, or 0 if empty.
peek_front	fn peek_front(xs: Deque<i64>) -> i64	Front element, or 0 if empty.
pop_back	fn pop_back(xs: Deque<i64>) -> Deque<i64>	Drop the back.
pop_front	fn pop_front(xs: Deque<i64>) -> Deque<i64>	Drop the front.
push_back	fn push_back(xs: Deque<i64>, value: i64) -> Deque<i64>	Append to the back.
push_front	fn push_front(xs: Deque<i64>, value: i64) -> Deque<i64>	Prepend to the front.