Using closure in function scope to make "real" private class members

[Dom Disc]

On Wednesday, 8 June 2022 at 08:23:31 UTC, Max Samukha wrote:
> That is just as abominable, given friends are rare in 
> "properly" designed OOP code.

Not in C++. E.g. operator overloads with the class as second 
operand but some basic type as first operand _can't_ be member 
functions (because C++ doesn't have op_right). But operators tend 
to really need access to the innards, so most of the time they 
have to be friends. And there are many operators, hence many 
friends...