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// Copyright 2014 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.
#![crate_type="lib"]
extern {
// Prevents optimizing away the stack buffer.
// This symbol is undefined, but the code doesn't need to pass
// the linker.
fn black_box(ptr: *const u8);
}
pub unsafe fn foo() {
// Make sure we use the stack
let x: [u8; 50] = [0; 50];
black_box(x.as_ptr());
}
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