Modifying network parameters.

[Yigit Polat]

I want to modify the network parameters (weights) manually, how do I access them?
In other words, how can I change the parameter returned from b->data_at( n, c, h, w)

[Yigit Polat]

I am sorry, I forgot to say that I need to do this in C++ and further training will be done in a GPU.