rust/src/test/run-pass/dyn-trait.rs

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2017-10-10 14:33:19 +00:00
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#![feature(dyn_trait)]
use std::fmt::Display;
static BYTE: u8 = 33;
fn main() {
let x: &(dyn 'static + Display) = &BYTE;
let y: Box<dyn Display + 'static> = Box::new(BYTE);
let xstr = format!("{}", x);
let ystr = format!("{}", y);
assert_eq!(xstr, "33");
assert_eq!(ystr, "33");
}