Miss Dada  🏳️‍⚧️

Hello Rust friends. Is it bad to implement Add and then use this boilerplate for AddAssign? impl AddAssign for Foo { fn add_assign(&mut self, rhs: Self) { *self = *self + rhs; } }

http://a.zip (b).map(f)

zip would throw away the Some in the Some + None cases, right?

Oh sorry I missed what you were doing in those cases

No worries. You could do it with an xor first but that wouldn't be very elegant, I think.