Protocol std::cmp::Equatable

Types that can be compared for equality.

Types that implement this protocol can be compared for equality using the == and != operators. Many built-in types implement this protocol, such as primitive types, slices, Option, etc.

Equatable can be automatically generated for by using DefaultEquatable mixin, but if custom equality comparison is needed, the protocol can be implemented manually.

Method equals must be implemented, other methods can be mixed in.

Example

struct Point { x: i32, y: i32 }

impl Point {
    use std::cmp::Equatable;

    fn equals(self: &Point, other: &Point) -> bool {
        self.x == other.x && self.y == other.y
    }
    mixin Equatable<Point>;
}

assert_eq!(Point { x: 1, y: 2 }, Point { x: 1, y: 2 });
assert_ne!(Point { x: 1, y: 2 }, Point { x: 1, y: 3 });
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Required methods

• fn equals(lhs: &Self, rhs: &Self) -> bool

  source

  Returns true if arguments are equal, false otherwise

  See Equatable for details.

Provided methods

• fn not_equals(lhs: &Self, rhs: &Self) -> bool

  source

  Returns false if arguments are equal, true otherwise