22 lines
647 B
Rust
22 lines
647 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.
|
|
|
|
extern mod std;
|
|
use core::cmp::Eq;
|
|
|
|
fn f<T:Eq>(o: &mut Option<T>) {
|
|
assert!(*o == option::None);
|
|
}
|
|
|
|
fn main() {
|
|
f::<int>(&mut option::None);
|
|
//~^ ERROR cannot borrow
|
|
}
|