Simple GPU C++ mining
This looks like a great lib that acts as a OpenCL wrapper, at least based upon the short example given on vector sorting.

All libraries seem to treat the GPU as if it's some foreign CPU, and while this is no exception, it seems to be the most direct and intuitive.

I haven't been able to test, but if it works as advertised, it looks perfect.

Note: I've tried to sort out CUDA and OpenCL by myself, and I'm just not good enough.  This appeals to my laziness.