29 lines
868 B
Rust
29 lines
868 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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// Test that negating unsigned integers doesn't compile
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struct S;
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impl std::ops::Neg for S {
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type Output = u32;
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fn neg(self) -> u32 { 0 }
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}
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fn main() {
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let _max: usize = -1;
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//~^ ERROR cannot apply unary operator `-` to type `usize`
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let x = 5u8;
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let _y = -x;
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//~^ ERROR cannot apply unary operator `-` to type `u8`
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-S; // should not trigger the gate; issue 26840
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}
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