rust/src/test/run-pass/unique-assign-generic.rs

// 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: Copy>(t: T) -> T {
    let t1 = t;
    t1
}

fn main() {
    let t = f(~100);
    assert t == ~100;
    let t = f(~@~[100]);
    assert t == ~@~[100];
}