Horde3D

I'm curious what sorts of common utilities / classes others use (whether self-written or from another source).

Listing what I use (* self written, ** implementation similar to what someone else used or wrote about, *** third party):

Templated Memory Pool**
Scaling Templated Memory Pool*
Generic Tree**
Octree***
Quadtree*
Signal*
Templated Registrar* (Handle, T*, string container)
Boost Serialization***
anyType*

I use a 3D-math library, originally derived from that of Sean O'Neil.
A custom smart_ptr modelled on boost::intrusive_ptr.
Sneftel's Very, Very Fast Event Library.

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Tristam MacDonald - [swiftcoding]

Property Marshalling**
Serialisation*
Templated Thread-local storage, atomic variables (compare-and-swap, transactions)*
Templated hash algorithm**
Math library* (though I would rather use a good 3rd party one!)
Reference counted "smart" pointers*
Threading*** (GLFW atm)
Thread pool, task queues*
Abstract file-system* (currently just a wrapper for fopen!)