pure-virtual

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How can a base class satisfy the definition of a parent's pure virtual function using another parent's function

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[详细]

2023-01-16 13:04 分类：问答
Redefinition of pure virtual methods in C++

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[详细]

2023-01-16 07:34 分类：问答
What does `= 0` mean in the decalartion of a pure virtual function? [duplicate]

This question already has answers here: Closed 12 years ago. Possible Duplicates: C++ Virtual/Pure Virtual Explained[详细]

2023-01-14 17:33 分类：问答
"import" a definition of a function from a base class to implement abstract interface (multiple inheritance in C++)

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[详细]

2023-01-08 06:38 分类：问答
c++ forward declaration of pure virtual class

I have a forward deceleration problem. I had a normal class before, called GlobalCWND, it was instantiated and used in another class ProtocolContext.[详细]

2023-01-07 00:47 分类：问答
pure virtual function and abstract class

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.[详细]

2023-01-06 08:31 分类：问答
"pure virtual method called" when implementing a boost::thread wrapper interface

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;[详细]

2023-01-05 15:33 分类：问答
Where in the standard is forwarding to a base class required in these situations?

Maybe even better is: Why does the standard require forwarding to a base class in these situations? (yeah yeah yeah -Why? - Because.)[详细]

2023-01-01 05:45 分类：问答
Deriving a class from an abstract class (C++)

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.[详细]

2022-12-25 01:28 分类：问答
Why is a pure virtual function initialized by 0?

We always declare a pure virtual function as: virtual void fun () = 0 ; I.e., it is always assigned to 0.[详细]

2022-12-18 14:08 分类：问答