num::traits

Trait num::traits::CheckedAdd [-] [+] [src]

pub trait CheckedAdd: Add<Self, Output=Self> {
    fn checked_add(&self, v: &Self) -> Option<Self>;
}

Performs addition that returns None instead of wrapping around on overflow.

Required Methods

fn checked_add(&self, v: &Self) -> Option<Self>

Adds two numbers, checking for overflow. If overflow happens, None is returned.

Implementors