manual-is-multiple-of

Prefer isMultipleOf over a remainder comparison with zero

Comparing an integer remainder with zero manually tests divisibility.
Instead, you SHOULD call .isMultipleOf() on the dividend.

A zero divisor returns true exactly when the dividend is zero.
The smallest signed value with a divisor of -1 returns true without overflowing.

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

Reported

function aligned(value: uint32, alignment: uint32): boolean {
    return value % alignment === 0;
}
Accepted

function aligned(value: uint32, alignment: uint32): boolean {
    return value.isMultipleOf(alignment);
}
Prior art

- Clippy · manualismultipleof

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