| // Copyright 2012 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. |
| |
| pub fn main() { |
| // sometimes we have had trouble finding |
| // the right type for f, as we unified |
| // bot and u32 here |
| let f = match "1234".parse::<usize>().ok() { |
| None => return (), |
| Some(num) => num as u32 |
| }; |
| assert_eq!(f, 1234); |
| println!("{}", f) |
| } |
