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operator overloading

Making +, ==, or [] work for your own types.

Operators are method calls on std::ops and std::cmp traits (Add, Mul, Neg, Index, PartialEq...), so implementing the trait gives a type the operator.

Examples

  • impl Add for Money { type Output = Money; fn add(self, other: Money) -> Money { ... } } makes a + b work for two Money values.

See also

associated type derive generic trait
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