Nicolas Tancogne-Dejean requested to merge remove_useless_copy into develop Oct 26, 2018

Description

Getting rid of some useless copies in the lanczos and the taylor exponential methods.

News snippet

Minor optimization of the propagators.

Checklist

I have checked that my code follows the Octopus coding standards
I have added tests for all the new features added in this request.

Edited Oct 26, 2018 by Nicolas Tancogne-Dejean