C + + base class and derived class conversionsIn public inheritance, in private inheritance and protection inheritance, only public inheritance can preserve the characteristics of the base class, it retains all members of the base class except
We know that if a derived class has more than one direct base class, and these direct base classes have a common base class, then in the final derived class, multiple copies of the same name members of the indirect common base class data member are
Base classThe inheritance process creates a new derived class that consists of the members of the base class plus any new members added by the derived class. In multiple inheritance, you can build an inheritance diagram in which the same base class
>------Build started:Project:graghEngine, Configuration:debug Win32------1>compiling ...1>base.cpp1>to Compile qedit.h You must install the DirectX 9 SDK, to obtain the DXTRANS.H header.1>c:/program files/microsoft sdks/windows/v6.0a/include/qedit.h
4.5 Assignment compatibility relationship between a base class and a derived class objectUnder certain conditions, type conversions can be made between different types of data, such as the ability to assign integer data to a double type
Object-Oriented Programming-Overview, definition of base classes and derived classes
Introduction:
Object-Oriented programming is based on three basic concepts: data abstraction, inheritance, and dynamic binding.
In C ++,Data abstraction using
In the example mentioned in "Multi-inheritance", Class A, CLASS B1, Class B2, and class C constitute the hierarchy of class inheritance. In this structure, the object of class C will contain sub-objects of Two Classes. Because Class A is a public
Reference: http://www.weixueyuan.net/view/6376.htmlSummarize:In C + +, the common interface can be implemented by abstracting the base classA pure virtual member function has no function body, only a function declaration, and a "= 0" at the end of a
Item 7: declare Destructors (destructor) as virtual in polymorphic base classes (polymorphism base class)
By Scott Meyers
Translator: fatalerror99 (itepub's nirvana)
Release: http://blog.csdn.net/fatalerror99/
There are many ways to get the time, so
When there is a common base class on multiple inheritance paths, the common base class will produce multiple instances (or multiple replicas) at a certain confluence of these paths, and the public base class can be described as a virtual base class
Introduction has never written a conceptual article, because I think that these conceptual things are written in the books and are very detailed and useless, and today I have a whim to write, Here is a discussion of the virtual base class,
[SOURCE DOWNLOAD]Indispensable Windows Native-C + +: Multiple inheritance, virtual base classWebabcdIntroducedEssential C + + of Windows Native
Multiple inheritance
Virtual base class
Example1. Base Class
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
(1) Access to base class membersAccess the members of the base class through the base keyword:Calls a method on the base class that has been overridden by another method.Specifies the base class constructor that should be called when creating an
1. member functions that cannot be automatically inherited
Constructor (including copy constructor)
Destructor= Operator
Ii. Inheritance and constructor
The constructor of the base class is not inherited. You must declare your own constructor In
The theoretical premise of virtual destructor isAfter executing the destructor of the subclass, the fictitious function of the parent class is bound to be executed.Then when you use Delete to release a subclass object that is instantiated by a
As an object-oriented program design, inheritance is a very important feature, the core idea of object-oriented programming (object-oriented programming, OOP) is data abstraction, inheritance and dynamic binding. With the use of data abstraction, we
Where to use the virtual base class:Why avoid ambiguity caused by multiple public base classes in multi-layer inheritanceVirtual base class UsageWhen a derived class inherits a base class, the virtual base class is inherited by the addition of an
1, why the size of the class is not allowed in C + + is 0Class Zerosizet {}; Zerosizet Z[10];&z[i]-&z[j]; is usually obtained by dividing the number of bytes between two addresses by the type size, while the type size is 0 will be problematic2, why
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Msgsender is known to be specially crafted for companyz. Next, consider derived class (derived class) loggingmsgsender:
Template Class loggingmsgsender: Public msgsender {Public:...Void sendclearmsg
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