[Boost-users] [uBLAS] Predefined subrange or project

Subject: [Boost-users] [uBLAS] Predefined subrange or project
From: Ryan (mccorywork_at_[hidden])
Date: 2011-03-08 14:44:20

Is it possible to predefine a subrange or project with a specific range so
that when called I only had to pass in the matrix?  I'm currently dealing
with several 9x9 matrices that I need to access the 3x3 submatrix (topleft,
topmiddle, topright, etc.).  Is there a way to typedef or templatize a
subrange or project so that I just need to pass the 9x9 matrix and get the
topleft matrix?

Example:

typedef subrange(input_matrix, 0, 3, 0, 3) topleft;  //This is what I want
to somehow define.

matrix<double> A(9,9);
topleft(A) = zero_matrix<double>(3,3);

Ryan