22 lines
685 B
Rust
22 lines
685 B
Rust
// Copyright 2015 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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use std::mem;
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pub struct X([u8]);
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fn _f(x: &X) -> usize { match *x { X(ref x) => { x.len() } } }
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fn main() {
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let b: &[u8] = &[11; 42];
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let v: &X = unsafe { mem::transmute(b) };
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assert_eq!(_f(v), 42);
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}
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