37 lines
1.2 KiB
Rust
37 lines
1.2 KiB
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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// Test implicit coercions involving DSTs and raw pointers.
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struct S;
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trait T {}
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impl T for S {}
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struct Foo<T: ?Sized> {
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f: T
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}
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pub fn main() {
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// Test that we cannot convert from *-ptr to &-ptr
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let x: *const S = &S;
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let y: &S = x; //~ ERROR mismatched types
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let y: &T = x; //~ ERROR mismatched types
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// Test that we cannot convert from *-ptr to &-ptr (mut version)
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let x: *mut S = &mut S;
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let y: &S = x; //~ ERROR mismatched types
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let y: &T = x; //~ ERROR mismatched types
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// Test that we cannot convert an immutable ptr to a mutable one using *-ptrs
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let x: &mut T = &S; //~ ERROR mismatched types
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let x: *mut T = &S; //~ ERROR mismatched types
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let x: *mut S = &S; //~ ERROR mismatched types
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}
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