| // 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. |
| |
| // This assumes the packed and non-packed structs are different sizes. |
| |
| // the error points to the start of the file, not the line with the |
| // transmute |
| |
| // normalize-stderr-test "\d+ bits" -> "N bits" |
| // error-pattern: transmute called with types of different sizes |
| |
| use std::mem; |
| |
| #[repr(packed)] |
| struct Foo { |
| bar: u8, |
| baz: usize |
| } |
| |
| #[derive(Debug)] |
| struct Oof { |
| rab: u8, |
| zab: usize |
| } |
| |
| fn main() { |
| let foo = Foo { bar: 1, baz: 10 }; |
| unsafe { |
| let oof: Oof = mem::transmute(foo); |
| println!("{:?}", oof); |
| } |
| } |