manual-abs-diff

Prefer absDiff over equivalent branching subtraction

Choosing the subtraction order with a comparison manually computes an unsigned absolute difference.
Instead, you SHOULD call .absDiff() on one operand.

- Category: style
- Level: warning
- Fix: automatic
- Scope: module

Reported

function distance(left: uint32, right: uint32): uint32 {
    return left > right ? left - right : right - left;
}
Accepted

function distance(left: uint32, right: uint32): uint32 {
    return left.absDiff(right);
}
Prior art

- Clippy · manualabsdiff

language/linter/src/rules/style/manualabsdiff.rs:8