Function std::iter::empty
pub const fn empty<T>() -> Empty<T> ⓘCreates an iterator that yields nothing.
Examples
Basic usage:
use std::iter;
// this could have been an iterator over i32, but alas, it's just not.
let mut nope = iter::empty::<i32>();
assert_eq!(None, nope.next());© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/iter/fn.empty.html