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27 lines
1.2 KiB
Rust
27 lines
1.2 KiB
Rust
// Copyright 2018 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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#![feature(const_raw_ptr_to_usize_cast, const_compare_raw_pointers, const_raw_ptr_deref)]
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fn main() {}
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// unconst and bad, will thus error in miri
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const X: bool = &1 as *const i32 == &2 as *const i32; //~ ERROR cannot be used
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// unconst and fine
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const X2: bool = 42 as *const i32 == 43 as *const i32;
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// unconst and fine
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const Y: usize = 42usize as *const i32 as usize + 1;
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// unconst and bad, will thus error in miri
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const Y2: usize = &1 as *const i32 as usize + 1; //~ ERROR cannot be used
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// unconst and fine
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const Z: i32 = unsafe { *(&1 as *const i32) };
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// unconst and bad, will thus error in miri
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const Z2: i32 = unsafe { *(42 as *const i32) }; //~ ERROR cannot be used
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const Z3: i32 = unsafe { *(44 as *const i32) }; //~ ERROR cannot be used
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