Equatable interfacev0.1.0

pub interface Equatable {
    func Equals(other: &Self) -> bool;
}

The bound a generic writes when it needs to compare its element type — a search, a deduplication, a hash table's key. Self in the signature is the implementing type, so an Equatable value is only ever compared against another of its own type and never against an unrelated one. An implementation must be an equivalence: a value equals itself, equality reads the same in either order, and two values each equal to a third are equal to each other. A type that cannot promise all three — one with a value that does not equal itself, the way a floating-point NaN does not — should not implement this, and callers relying on it are entitled to assume it holds. A type that also implements Hashable must keep the two agreeable: equal values hash the same.

Requirements

Equals

func Equals(other: &Self) -> bool

Reports whether this value and other are equal. Borrows both operands and takes ownership of neither, so comparing costs nothing and leaves both usable. The reference guarantees that other is present. Cannot fail: every pair of values of the type is either equal or not.

Returns: whether the two are equal

Source