Trait ArrayLike 

pub trait ArrayLike<Idx>: Index<Idx, Output = Self::Elem> + IndexMut<Idx, Output = Self::Elem> {
    type Elem;

    const LEN: usize;

    // Required method
    fn from_fn<F: FnMut(Idx) -> Self::Elem>(cb: F) -> Self;
}

A helper trait for array types which can be indexed and iterated, with compile time known length. Use of this trait can be removed if generic_const_exprs is ever stabilized.

Required Associated Constants

const LEN: usize

Length of array, known at compile time.

Required Associated Types

type Elem

Type of elements in the array

Required Methods

fn from_fn<F: FnMut(Idx) -> Self::Elem>(cb: F) -> Self

Creates an array of the given length and type by repeatly calling the given function.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T, const N: usize> ArrayLike<usize> for [T; N]

const LEN: usize = N

type Elem = T

fn from_fn<F: FnMut(usize) -> T>(cb: F) -> Self

Implementors