Pass by reference

[jpn]

As far as I know there is no other way around. "A &a" is how you do it in C++.

[vermarajeev]

As far as I know there is no other way around. "A &a" is how you do it in C++.

That is fine, but I need to make my class smart enough to provide such functionality. Is there some way I can implement my class like that???

Thanks

[marcel]

What do you mean?
You just pass the parameter by reference...

[jacek]

I need to make my class smart enough to provide such functionality.

This is counter intuitive in C++ and might lead to mistakes and confusion, but if you really want it, just implement data sharing class without copy-on-write mechanism (AFAIR it's called a single state class).