1 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
14 fn f(x: isize) -> isize {
19 // println!("bottoming out");
23 // println!("recurring");
25 let y: isize = x * f(x - 1);
26 // println!("returned");
34 assert_eq!(f(5), 120);
35 // println!("all done");