Trait array_tool::vec::Shift[−][src]

pub trait Shift<T> {
    fn shift(&mut self) -> Option<T>;

    fn unshift(&mut self, other: T);
}
Expand description

Removes, or Adds, the first element of self.

Required methods

Removes and returns the first item from the vector

Example

use array_tool::vec::Shift;

let mut x = vec![0,1,2,3];
assert_eq!(x.shift(), Some(0));
assert_eq!(x, vec![1,2,3]);

Insert item at the beginning of the vector. No return value.

Example

use array_tool::vec::Shift;

let mut x = vec![1,2,3];
x.unshift(0);
assert_eq!(x, vec![0,1,2,3]);

Implementations on Foreign Types

Implementors