1 2 3 4 5 6 7 8 9 10 11 12
macro_rules! checked_impl { ($trait_name:ident, $method:ident, $t:ty) => { use num_traits::$trait_name; impl $trait_name for $t { #[inline] fn $method(&self, v: &$t) -> Option<$t> { (self.0).$method(v.0).map(|value| <$t>::from(value)) } } }; }