Trait optional::Noned
[−]
[src]
pub trait Noned {
fn is_none(&self) -> bool;
fn get_none() -> Self;
}A trait whose implementation for any type T allows the use of
Optioned<T> where T is bound by both Sized and Copy.
Required Methods
fn is_none(&self) -> bool
Returns true if the contained value is the declared None for T,
false otherwise.
fn get_none() -> Self
Returns the declared None value for T.