virtual ~type_info();

[Bobo]

Hello all.
Can anybody explay WTH std::type_info has a virtual destructor?
AFAIK the constructor is private so you cannot inherit from it (who
would want, anyway?).

TIA.
Bobo.

[Victor Bazarov]

"Bobo" <pi***@correo.nu> wrote...

Hello all.
Can anybody explay WTH std::type_info has a virtual destructor?
AFAIK the constructor is private so you cannot inherit from it (who
would want, anyway?).

The implementation might need to. Besides, it helps a class to retain
RTTI if at least one member function is virtual. Another thing: the
private constructor prevents the users from constructing it, but some
mechanism has to exist, no?

Just a guess, of course. For better explanation ask in comp.std.c++.

V

[VANNA CHHUM]

That's an interesting question. I think you should post to
comp.lang.c++.moderated or comp.std.c++. I'd like to know the answer to it
as well.

[Bobo]

"VANNA CHHUM" <eu*********@verizon.net> wrote in message news:<Vq*****************@nwrddc02.gnilink.net>...

That's an interesting question. I think you should post to
comp.lang.c++.moderated or comp.std.c++. I'd like to know the answer to it
as well.

Ok. I'm moving :-)