Subject: [ublas] Support for more general ranges
From: gsermaid (linuxfever_at_[hidden])
Date: 2013-05-20 12:49:30
I would like to ask if there is any way to create a vector proxy based on a general range of indices. For example, if I have
x <<= 1,2,3,4;
and a vector of indices
k <<= 0,3;
I would like to be able to create a vector proxy as follows
vector_proxy<unsigned> mysubvector(x, k);
with the property that
mysubvector[i] = x[k[i]].
I know I can create a simple new class which provides this functionality but ideally I also want to have
all the useful iterator functionality and mathematical operations supported by a typical ublas vector. Is this currently supported? If not, is there an easy way to
implement it and have all the functionality that ublas offer? Finally, do you think something like this could be included in future versions?