I am extending an existing C++ project.I have a base class that derives from two parent classes.One of the parents has a pure virtual function.I want that pure virtual function to be defined by a func
Do you have to declare methods replacing a pure virtual function in a base class? If so, why? Because the base class has declared the methods as pure virtual, and therefore MUST exist in derived class
This question already has answers here: Closed 12 years ago. Possible Duplicates: C++ Virtual/Pure Virtual Explained
Say we have a class inheriting from two base classes (multiple inheritance). Base class A is abstract, declaring a pure virtual function foo, the other base class B declares and implements a function
I have a forward deceleration problem. I had a normal class before, called GlobalCWND, it was instantiated and used in another class ProtocolContext.
I have the following classes, Base and Derived and when I compile the compiler complains that it cannot create an instance of DLog because it is abstract.
I have a small wrapper which centralize what\'s relative to threads : class Thread { protected: boost::thread *开发者_C百科m_thread;
Maybe even better is: Why does the standard require forwarding to a base class in these situations? (yeah yeah yeah -Why? - Because.)
I have an abstract class with a pure virtual function f() and i want to create a class inherited from that class, and also override function f(). I seperated the header file and the cpp file.
We always declare a pure virtual function as: virtual void fun () = 0 ; I.e., it is always assigned to 0.
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