manual-signum

Prefer signum over equivalent sign branching

Branching between -1, 0, and 1 from integer comparisons manually computes a sign value.
Instead, you SHOULD call .signum() on the compared integer.

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

Reported

function sign(value: int32): int32 {
    return value > 0 ? 1 : value < 0 ? -1 : 0;
}
Accepted

function sign(value: int32): int32 {
    return value.signum();
}
language/linter/src/rules/style/manualsignum.rs:8