Function std::vec::as_vec

pub fn as_vec<T>(x: &'a [T]) -> DerefVec<'a, T>

Unstable

Converts a slice to a wrapper type providing a &Vec<T> reference.

Examples

#![feature(collections)] fn main() { use std::vec::as_vec; // Let's pretend we have a function that requires `&Vec<i32>` fn vec_consumer(s: &Vec<i32>) { assert_eq!(s, &[1, 2, 3]); } // Provide a `&Vec<i32>` from a `&[i32]` without allocating let values = [1, 2, 3]; vec_consumer(&as_vec(&values)); }

use std::vec::as_vec;

// Let's pretend we have a function that requires `&Vec<i32>`
fn vec_consumer(s: &Vec<i32>) {
    assert_eq!(s, &[1, 2, 3]);
}

// Provide a `&Vec<i32>` from a `&[i32]` without allocating
let values = [1, 2, 3];
vec_consumer(&as_vec(&values));