Trait tinyset::tinyset::HasInvalid [−] [src]

pub trait HasInvalid: Copy + Eq + Hash {
    fn invalid() -> Self;

    fn hash_usize(self) -> usize { ... }
}

Trait for any type that can be converted to a usize. This could actually be a hash function, but we will assume that it is fast, so I'm not calling it Hash.

Required Methods

A unique invalid value for this type. If you cannot identify an invalid value, then you don't get to use TinySet, since we would need to store an Option<T> which would probably double the size of the set.

Provided Methods

Hash to a usize.

Implementors