Hi,
Stride is a good idea. But it can be extended.
Many algorithms that need a pivot, require to swap rows or columns.
Thus can be taken care
by using an array that tells how the rows or columns are ordered. While
accessing these can be a small
overhead, I think it might save on moving and copying data. Especially
if it is a derived class.
swap_included_array -> array
What do you think
Mukund
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