JCPriorityQueue
A pure Cocoa implementation of a priority queue.
- ARC
- Unit tested
Making it faster
It's likely that the performance of NSMutableArray could be improved by replacing the underlying data structures with something one of the C++ algorithms.
The best option is the C++ priority_queue or a heap in an implementation like Mike Ash's example.
I've started to implement an experimental heap backed priority queue on another branch.
(Thanks to Oliver Jones for the Mike Ash tip off)