// 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 or the MIT license // , 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 // error-pattern: transmute called on types with different size use std::mem; #[repr(packed)] struct Foo { bar: T, baz: S } struct Oof { rab: T, zab: S } fn main() { let foo = Foo { bar: [1u8, 2, 3, 4, 5], baz: 10i32 }; unsafe { let oof: Oof<[u8; 5], i32> = mem::transmute(foo); println!("{:?} {:?}", &oof.rab[], oof.zab); } }