[ublas] Fwd: Bug in unbounded_array assign operator?

Subject: [ublas] Fwd: Bug in unbounded_array assign operator?
From: Sebastian Krysmanski (maya.lists_at_[hidden])
Date: 2012-11-23 15:07:20

Hi,

I'm currently trying to debug a project that's not mine. I have a basic
understanding of C/C++ (do most work in C# though). Anyway, I stumbled over
an error in the assign operator of unbounded_array:

I get an "invalid null pointer" error when the source (rhs) array is empty
(size_ = 0). In this case (as far as I can tell) "resize()" will set "data_
= NULL" which triggers the error in "std::copy()".

There should be a check so that "std:copy()" isn't called when the source
array is empty, right? (file "boost/numeric/ublas/storage.hpp" lines 200 -
206 in the current trunk).

Cheers
Sebastian