rust/src/test/run-pass/regions-params.rs
2013-02-22 14:53:44 -08:00

28 lines
759 B
Rust

// 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.
// xfail-fast
fn region_identity(x: &r/uint) -> &r/uint { x }
fn apply<T>(t: T, f: fn(T) -> T) -> T { f(t) }
fn parameterized(x: &uint) -> uint {
let z = apply(x, ({|y|
region_identity(y)
}));
*z
}
pub fn main() {
let x = 3u;
assert parameterized(&x) == 3u;
}