Description:

libgee is a collection library providing GObject-based interfaces and
classes for commonly used data structures.

libgee provides the following interfaces:

* Iterable
* Collection
* List
* Set
* MultiSet
* Queue
* Deque
* Iterator
* Map
* MultiMap

The ArrayList, HashSet, HashMap, HashMultiSet, HashMultiMap,
LinkedList, PriorityQueue, TreeSet, TreeMap, TreeMultiSet, and
TreeMultiMap classes provide a reasonable sample implementation of
those interfaces. In addition, a set of abstract classes are provided
to ease the implementation of new collections.

Around that, the API provide means to retrieve read-only views,
efficient sort algorithms, simple, bi-directional or index-based
mutable iterators depending on the collection type.

libgee is written in Vala and can be used like any GObject-based C library.
It's planned to provide bindings for further languages.