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Don't negate resulted offsets when offset is subtraction by 0

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rail 2020-04-27 17:42:57 +12:00
parent 5d8a3e8724
commit ad9ad6f402
1 changed files with 2 additions and 2 deletions
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4
clippy_lints/src/loops.rs
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@ -960,8 +960,8 @@ fn detect_manual_memcpy<'a, 'tcx>(
let print_sum = |arg1: &Offset, arg2: &Offset| -> String {
match (&arg1.value[..], arg1.negate, &arg2.value[..], arg2.negate) {
("0", _, "0", _) => "".into(),
("0", _, x, false) | (x, false, "0", false) => x.into(),
("0", _, x, true) | (x, false, "0", true) => format!("-{}", x),
("0", _, x, false) | (x, false, "0", _) => x.into(),
("0", _, x, true) => format!("-{}", x),
(x, false, y, false) => format!("({} + {})", x, y),
(x, false, y, true) => {
if x == y {