PowerSaver & Wifi class cannot be assigned

[stoffera]

The assignment operator from #15 does not work

Problem

The assignment operator for both classes does not define its parameter as const, which it needs to be. The operator right changes the object which is assigned, therefore it cannot be const.

Solution

The operator overload must be const. This means the parameter (the object that gets assigned) cannot be changed. This means there need to exists two copies of the object, which can be problem for the Wifi class, since it owns an instance of ModuleSPICommunication

[jpsecher]

Maybe mutable will come in handy?

[stoffera]

@jpsecher So inside the Wifi class we mark its member ModuleSPICommunication as mutable- to allow it to change - even if the owning object is const?

[jpsecher]

Yes, although I don't know if that is a good idea in this particular case, haven't looked at the code...