class pointer

#include "stdafx.h" #include #include using namespace Std;class base{public:int num; virtual void func () {cout//so it's okay pb-> Func ();} int main () {//base* pb=new Derived () //after using the private and protected inheritance properties , it

Object pointers and level two pointers for the class1#include 2 3 classMyClass4 {5 Public:6 intx;7 inty;8 Public:9MyClassint,int);//constructor FunctionTen voidprintxy (); One }; A -Myclass::myclass (intAintb): X (a), Y

In multi-threaded design, many people send the pointer of the dialog box class or other classes to the working thread to save trouble, and call the member functions or member variables of the class in the working thread. However, in the Debug

Knowledge: No matter whether there are any virtual functions in the parent class, you can define the parent class pointer to the subclass instance. If no virtual function exists in the parent class, the parent class pointer is used to access only

Original article link Yi CThere are two types of conversions in the language: Implicit and explicit Conversions Implicit conversion: values and operations are performed between different data types, and parameters are passed through function

Document directory The constructor cannot be declared as a virtual function. The Destructor can be declared as a virtual function, and sometimes it must be declared as a virtual function. The constructor cannot be declared as a virtual function.

The magic of C + +In C + +, through inheritance, subclasses can get the members of the parent class, through polymorphism, C + + can be implemented at run time based on the actual type of object calls the correct virtual function, C + + and C

C + + language Learning (11)--polymorphic One, polymorphic introductionPolymorphism (polymorphism) in C + + refers to the different classes that are generated by inheritance and whose objects respond differently to the same message.Polymorphism is

Reference URL: http://itindex.net/detail/49579-java-%E7%A9%BA%E9%97%B4http://openjdk.java.net/jeps/122Http://www.open-open.com/lib/view/open1434962681825.htmlIn this article we will introduce an update to the JVM, which is the removal of persistent

What is polymorphism? What is its implementation mechanism? What is the difference between overloading and overriding? This is the four very important concepts that we want to review this time: inheritance, polymorphism, overloading, and rewriting.

An article from cplusplus.com, which is the most comprehensive, meticulous, and in-depth article I have seen about C + + type conversion. This article describes the various types of C + + conversions, including: implicit type conversion of basic

We know that in the same class you cannot define two functions that have the same name, the number of arguments, and the same type, or else it is "duplicate definition." However, in the inheritance hierarchy of a class, functions that have the same

IntroductionC-style transformational action(t) expression // transform expression to TThe transformational action of the function style looks like thisT (expression) // transform expression to TFour types of transformation in C + +

One, polymorphic C + + polymorphism is implemented through inheritance and dynamic binding. Inheritance is the inheritance and sharing of code or function, which is external, formal and easy to understand from the point of view of language. Dynamic

We know that in the same class it is not possible to define two functions with the same name, the same number of arguments, and the same type, or "duplicate definition". However, in a class's inheritance hierarchy, functions that have the same name,

How to calculate the size of C ++ inheritance, virtual inheritance, and virtual function classes ?, Function How to calculate the size of C ++ inheritance, virtual inheritance, and virtual function classes? I. Vacuum C ++

1. Obtain the applicationProgramPointerCmyapp * PAPP = (cmyapp *) afxgetapp (); 2. Obtain the master framework pointerThe Public member variable m_pmainwnd in cwinapp is the pointer of the main framework.Cmainframe * pmainframe = (cmainframe *)

Since watching "Effective C + +", more and more feel that they should learn C + +. But pick up from the bits and pieces of knowledge and go slowly. Polymorphism When the same object receives a different message or a different object receives the

Today I saw a very good article on the internet, which is about the C + + class inheriting the memory layout. After looking at the benefit of a lot, now turned in my own blog inside, as a later review of the use. --On VC + + object model(US) Jane

Transferred from: http://www.cnblogs.com/sujz/articles/2044365.htmlThe inheritance of derived classes is summarized as follows: How to Inherit Description Public The public and protected members of the base