Trait generic_array::sequence::Shorten

source · [−]
pub unsafe trait Shorten<T>: Sized + GenericSequence<T> {
    type Shorter: Lengthen<T, Longer = Self>;
    fn pop_back(self) -> (Self::Shorter, T);

    fn pop_front(self) -> (T, Self::Shorter);
}
Expand description

Defines a GenericSequence which can be shortened by removing the first or last element from it.

Additionally, any shortened sequence can be lengthened by appending or prepending an element to it.

Associated Types

GenericSequence that has one less element than Self

Required methods

Returns a new array without the last element, and the last element.

Example:

let a = arr![i32; 1, 2, 3, 4];

let (init, last) = a.pop_back();

assert_eq!(init, arr![i32; 1, 2, 3]);
assert_eq!(last, 4);

Returns a new array without the first element, and the first element. Example:

let a = arr![i32; 1, 2, 3, 4];

let (head, tail) = a.pop_front();

assert_eq!(head, 1);
assert_eq!(tail, arr![i32; 2, 3, 4]);

Implementors