Fix/cpp 20 lambda capture
What this MR does / why does DuMux needs it
lambda capture [=] with implicit capture by reference of this is deprecated in C++20. Fix occurrences.
Fixes #1415 (closed).
Edited by Timo Koch
What this MR does / why does DuMux needs it
lambda capture [=] with implicit capture by reference of this is deprecated in C++20. Fix occurrences.
Fixes #1415 (closed).