Nicolas Tancogne-Dejean requested to merge fix_dangerous_code into main Oct 26, 2023

Description

The use of an explicit unit is dangerous. This is fixed using Fortran 2008 newunit feature.

This might explain some strange error like a "End of file" occurring while reading the D3 coefficients.

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.