// Copyright 2012 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. // error-pattern:fail #![feature(managed_boxes)] extern crate debug; use std::mem; use std::gc::GC; fn failfn() { fail!(); } struct r { v: *const int, } impl Drop for r { fn drop(&mut self) { unsafe { let _v2: Box = mem::transmute(self.v); } } } fn r(v: *const int) -> r { r { v: v } } fn main() { unsafe { let i1 = box 0; let i1p = mem::transmute_copy(&i1); mem::forget(i1); let x = box(GC) r(i1p); failfn(); println!("{:?}", x); } }