src/test/compile-fail/fat-ptr-cast.rs


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// Copyright 2015 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 main() {
    let a: &[i32] = &[1, 2, 3];
    let b: Box<[i32]> = Box::new([1, 2, 3]);
    let p = a as *const [i32];

    a as usize; //~ ERROR cast from fat pointer
    b as usize; //~ ERROR cast from fat pointer
    p as usize; //~ ERROR cast from fat pointer
}