# Module alloc::collections::btree_set

1.0.0 · source ·
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An ordered set based on a B-Tree.

## Structs

- DrainFilter Experimental
  An iterator produced by calling `drain_filter` on BTreeSet.
- BTreeSet
  An ordered set based on a B-Tree.
- Difference
  A lazy iterator producing elements in the difference of `BTreeSet`s.
- Intersection
  A lazy iterator producing elements in the intersection of `BTreeSet`s.
- IntoIter
  An owning iterator over the items of a `BTreeSet`.
- Iter
  An iterator over the items of a `BTreeSet`.
- Range
  An iterator over a sub-range of items in a `BTreeSet`.
- SymmetricDifference
  A lazy iterator producing elements in the symmetric difference of `BTreeSet`s.
- Union
  A lazy iterator producing elements in the union of `BTreeSet`s.