Trait CheckedAdd

pub trait CheckedAdd<Rhs = Self> {
    type Output;

    // Required method
    fn checked_add(self, rhs: Rhs) -> Option<Self::Output>;
}

A more general version of num_traits::CheckedAdd that allows Rhs and Output to be different.

Its signature follows std::ops::Add to take self and Rhs rather than references used in num_traits::CheckedAdd. If we need to implement ops on references, it can be impl CheckedAdd<&Bar> for &Foo.

Required Associated Types

type Output

Required Methods

fn checked_add(self, rhs: Rhs) -> Option<Self::Output>

Implementors

impl CheckedAdd<Interval> for Timestamp

type Output = Timestamp

impl<T: CheckedAdd> CheckedAdd for T

Types already impl num_traits::CheckedAdd automatically impl this extended trait. Note that this only covers T + T but not T + &T, &T + T or &T + &T, which is used less frequently for Copy types.

type Output = T