CA Technologies
Acquired by Broadcom
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CA Technologies interview question
How do you create a "final" or "leaf" class in C++
Interview Answer
Anonymous
10 Jul 2013
class Frozen; class Freeze { Freeze () {} friend class Frozen; }; class Frozen : public virtual Freeze { }; Since the constructor of Freeze is private, only Frozen can call it – because Frozen is declared as a friend to Freeze.