Friendship inheritance

[Marcin Vorbrodt]

Is friendship inherited? Meaning if:

class Base {
public:
friend FriendClass;
};

class Derived : public Base {
}

Is FriendClass also a friend of Derived? Or does the friendship need to be
explicitly granted?

Thanks,
Martin

 

[Andrey Tarasevich]

Is friendship inherited? Meaning if:

class Base {
public:
friend FriendClass;
};

class Derived : public Base {
}

Is FriendClass also a friend of Derived?
No.

Or does the friendship need to be explicitly granted?

Yes.

 

[Artie Gold]

Marcin Vorbrodt wrote:




Yes.

Just to add (because I think it's well expressed) -- take a look at:

http://www.parashift.com/c++-faq-lite/friends.html

BTW - reading through the entire FAQ would be a good idea -- and
remarkably entertaining, too!

HTH,
--ag

 

[Shane Beasley]

Is friendship inherited?

Friendship is not inherited, transitive, or reciprocal. Apparently,
enough people ask this that it's a FAQ:

<http://www.parashift.com/c++-faq-lite/friends.html>

While you're there, read the rest of the FAQs:

<http://www.parashift.com/c++-faq-lite/>

There is much knowledge to be had from those pages.

- Shane

 

[Big Brian]

Is friendship inherited? Meaning if:

class Base {
public:
friend FriendClass;
};

class Derived : public Base {
}

Is FriendClass also a friend of Derived? Or does the friendship need to be
explicitly granted?

IMHO, you should take 5 minutes and try it with our favorite standard C++ compiler.