| // 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. |
| |
| fn even(x: usize) -> bool { |
| if x < 2 { |
| return false; |
| } else if x == 2 { return true; } else { return even(x - 2); } |
| } |
| |
| fn foo(x: usize) { |
| if even(x) { |
| println!("{}", x); |
| } else { |
| panic!(); |
| } |
| } |
| |
| pub fn main() { foo(2); } |
