How do you cast away const'ness when the function takes a reference to the object (and access non-const methods)?

Question

I have a back up copy of data that I would like to protect so I made it const. I need to violate that constness on two occassions, once to store vi

Answer 1

Be aware that if you do this and the object really is const, then modifying it after casting away the constness is undefined behaviour.

fgBlocks.CopyInto(const_cast(backUpCopy));

Same thing for the other one:

const_cast(backUpCopy).RemoveAll(true);