Trait allocator_api2::SliceExt

source · [−]
pub trait SliceExt<T> {
    fn to_vec_in<A: Allocator>(&self, alloc: A) -> Vec<T, A>
    where
        T: Clone;
    fn repeat(&self, n: usize) -> Vec<T, Global>
    where
        T: Copy;

    fn to_vec(&self) -> Vec<T, Global>
    where
        T: Clone,
    { ... }
}
Expand description

Slice methods that use Box and Vec from this crate.

Required Methods

Copies self into a new Vec with an allocator.

Examples
#![feature(allocator_api)]

use std::alloc::System;

let s = [10, 40, 30];
let x = s.to_vec_in(System);
// Here, `s` and `x` can be modified independently.

Creates a vector by copying a slice n times.

Panics

This function will panic if the capacity would overflow.

Examples

Basic usage:

assert_eq!([1, 2].repeat(3), vec![1, 2, 1, 2, 1, 2]);

A panic upon overflow:

ⓘ
// this will panic at runtime
b"0123456789abcdef".repeat(usize::MAX);

Provided Methods

Copies self into a new Vec.

Examples
let s = [10, 40, 30];
let x = s.to_vec();
// Here, `s` and `x` can be modified independently.

Implementations on Foreign Types

Implementors