34 lines
981 B
Rust
34 lines
981 B
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Tests that are conservative around thin/fat pointer mismatches.
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#![allow(dead_code)]
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use std::mem::transmute;
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struct Foo<T: ?Sized> {
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t: Box<T>
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}
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impl<T: ?Sized> Foo<T> {
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fn m(x: &T) -> &isize where T : Sized {
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// OK here, because T : Sized is in scope.
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unsafe { transmute(x) }
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}
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fn n(x: &T) -> &isize {
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// Not OK here, because T : Sized is not in scope.
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unsafe { transmute(x) } //~ ERROR transmute called with differently sized types
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}
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}
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fn main() { }
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