So how i can do this? So that no member function can change the value of its data members once object has been initialized in C++.
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So how i can do this? So that no member function can change the value of its data members once object has been initialized in C++.
Make all the member functions
const. That’s the only mechanism for the job, and it works just fine. If you also make themprivateyou’re completely covered.If for some reason you feel compelled to mark them protected, then things are more complicated.
You will need to make the individual fields
const, and that will in turn require you to initialize them via the member initialization list, or aconst_castof this in the constructor. Or maybe a mutable ctor, but I’m not sure there is such a thing.