45 lines
1.0 KiB
Rust
45 lines
1.0 KiB
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution.
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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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const ONE: i64 = 1;
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const NEG_ONE: i64 = -1;
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const ZERO: i64 = 0;
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#[allow(
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clippy::eq_op,
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clippy::no_effect,
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clippy::unnecessary_operation,
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clippy::double_parens
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)]
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#[warn(clippy::identity_op)]
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fn main() {
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let x = 0;
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x + 0;
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x + (1 - 1);
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x + 1;
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0 + x;
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1 + x;
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x - ZERO; //no error, as we skip lookups (for now)
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x | (0);
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(ZERO) | x; //no error, as we skip lookups (for now)
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x * 1;
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1 * x;
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x / ONE; //no error, as we skip lookups (for now)
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x / 2; //no false positive
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x & NEG_ONE; //no error, as we skip lookups (for now)
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-1 & x;
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let u: u8 = 0;
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u & 255;
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}
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