22 lines
673 B
Rust
22 lines
673 B
Rust
// Copyright 2013 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 crate libc;
|
|
|
|
extern {
|
|
static mut a: libc::c_int;
|
|
}
|
|
|
|
fn main() {
|
|
a += 3; //~ ERROR: requires unsafe
|
|
a = 4; //~ ERROR: requires unsafe
|
|
let _b = a; //~ ERROR: requires unsafe
|
|
}
|