33 lines
1.0 KiB
Rust
33 lines
1.0 KiB
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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trait Trait {}
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// Make sure casts between thin-pointer <-> fat pointer obey RFC401
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fn main() {
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let a: &[i32] = &[1, 2, 3];
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let b: Box<[i32]> = Box::new([1, 2, 3]);
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let p = a as *const [i32];
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let q = a.as_ptr();
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a as usize; //~ ERROR casting
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b as usize; //~ ERROR non-scalar cast
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p as usize;
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//~^ ERROR casting
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//~^^ HELP cast through a thin pointer
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// #22955
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q as *const [i32]; //~ ERROR casting
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// #21397
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let t: *mut (Trait + 'static) = 0 as *mut _; //~ ERROR casting
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let mut fail: *const str = 0 as *const str; //~ ERROR casting
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}
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