Macros to disallow class copy and assignment. Google -vs- Qt

Question

To disallow copying or assigning a class it\'s common practice to make the copy constructor and assignment operator private. Both Google and Qt have macros to make this eas

Answer 1

In practice I would say that both should not be used anymore if you have a C++11 compiler.

You should instead use the delete feature , see here

Meaning of = delete after function declaration

and here

http://www.stroustrup.com/C++11FAQ.html#default

Why : essentially because compiler message is much more clearer. When the compiler need one of the copy or copy assignment operator, it immediately points out to the line where the =delete was coded.

Better and complete explanations can also be found in Item 11: Prefer deleted functions to private undefined ones from Effective Modern C++ book by Scott Meyers