40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
// Copyright 2012 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 `transmute` cannot be called on types of different size.
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#![allow(warnings)]
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#![feature(specialization)]
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use std::mem::transmute;
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unsafe fn f() {
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let _: i8 = transmute(16i16);
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//~^ ERROR transmute called with differently sized types
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}
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unsafe fn g<T>(x: &T) {
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let _: i8 = transmute(x);
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//~^ ERROR transmute called with differently sized types
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}
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trait Specializable { type Output; }
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impl<T> Specializable for T {
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default type Output = u16;
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}
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unsafe fn specializable<T>(x: u16) -> <T as Specializable>::Output {
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transmute(x)
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//~^ ERROR transmute called with differently sized types
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}
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fn main() {}
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