| // 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 f<T>(x: Vec<T>) -> T { return x.into_iter().next().unwrap(); } |
| |
| fn g<F>(act: F) -> isize where F: FnOnce(Vec<isize>) -> isize { return act(vec![1, 2, 3]); } |
| |
| pub fn main() { |
| assert_eq!(g(f), 1); |
| let f1 = f; |
| assert_eq!(f1(vec!["x".to_string(), "y".to_string(), "z".to_string()]), |
| "x".to_string()); |
| } |
