Protocol std::cmp::LexicographicComparable

Mixin to provide a default implementation of Comparable for a type

This mixin provides a default implementation of compare for a type. If the type is a struct, it will compare each field lexicographically in order of declaration. If the type is an enum, it will compare the underlying value.

If any field is not comparable, this will result in a compilation error.

Example

struct FullName { first: &[u8], last: &[u8] }

impl FullName {
    use std::cmp::LexicographicComparable;
    mixin LexicographicComparable<FullName>;
}

assert!(FullName { first: "John", last: "Malkovich" } < FullName { first: "John", last: "McCain" });
assert!(FullName { first: "John", last: "Doe" } == FullName { first: "John", last: "Doe" });
Run this example

Provided methods

• fn compare(lhs: &Self, rhs: &Self) -> Ordering

  source

  Compare the value

  See Comparable for details.

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

  source

  Returns true if lhs is equal to rhs, false otherwise

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

  source

  Returns true if lhs not equal to rhs, false otherwise

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

  source

  Returns true if lhs is strictly less than rhs, false otherwise

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

  source

  Returns true if lhs is less or equal to rhs, false otherwise

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

  source

  Returns true if lhs strictly greater than rhs, false otherwise

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

  source

  Returns true if lhs greater than or equal rhs, false otherwise