Fast Vector Class

I haven't used it myself, but the MTL is said to be uber fast.

Programmer's Reference
Performance Tests

Open source, too.

I have never had the need to implement my own vector class, but perhaps if you post some more details about your own implementation and profiling results, I can help you optimize it.

First I guess, what operations are giving you trouble, and how do you use the vector? That is, are you seeing something like deletion taking up most of the clock cycles, or resizing, or (insert operation here)?

Second, how are you implementing your vector? Is it backed by a plain array? How do you handle resizing, deleting, and the other non-trivial operations?

Are we talking about vector as in std::vector or as in 3D vector?

I'm talking about 3D vector, I guess I should have made that clear at the start...

The MTL that stylin posted sounds pretty interesting. You can use a matrix to control the implementation of vectors. The vector class I wrote up is currently being used in the SDL.NET project. The vector class itself can be found here in C#. Enjoy!

Quote:

Original post by Rob Loach The MTL that stylin posted sounds pretty interesting. You can use a matrix to control the implementation of vectors.

They also have an Iterative Template Library that handles solving linear systems. What's interesting is their claim of equal or surpassing performance levels with that of some Fortran implementations.