# 1.0.0[−][src]Module std::collections::hash_set

A hash set implemented as a `HashMap` where the value is `()`.

## Structs

Difference | A lazy iterator producing elements in the difference of `HashSet`s.
Drain | A draining iterator over the items of a `HashSet`.
HashSet | A hash set implemented as a `HashMap` where the value is `()`.
Intersection | A lazy iterator producing elements in the intersection of `HashSet`s.
IntoIter | An owning iterator over the items of a `HashSet`.
Iter | An iterator over the items of a `HashSet`.
SymmetricDifference | A lazy iterator producing elements in the symmetric difference of `HashSet`s.
Union | A lazy iterator producing elements in the union of `HashSet`s.