| // 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. |
| |
| // normalize-stderr-test "\d+ bits" -> "N bits" |
| |
| // Tests that are conservative around thin/fat pointer mismatches. |
| |
| #![allow(dead_code)] |
| |
| use std::mem::transmute; |
| |
| struct Foo<T: ?Sized> { |
| t: Box<T> |
| } |
| |
| impl<T: ?Sized> Foo<T> { |
| fn m(x: &T) -> &isize where T : Sized { |
| // OK here, because T : Sized is in scope. |
| unsafe { transmute(x) } |
| } |
| |
| fn n(x: &T) -> &isize { |
| // Not OK here, because T : Sized is not in scope. |
| unsafe { transmute(x) } //~ ERROR transmute called with types of different sizes |
| } |
| } |
| |
| fn main() { } |