friend class

Cocos2d-x architecture game light material Lighting and material are implemented as follows: 1. Lighting #pragma once//=========================================================================// Lights.h - implements a simple light class for

A private or protected derived class is not a subclass, because a non-public derived class cannot do anything that the base class can do, that is, it can be used in public, but within the class.I. Introduction In C ++, a class is a logical unit that

11 Frequently Asked Questions by C ++ programmers   This article has been collected for a long time, but I still feel that as a collection, in such an impetuous environment on the internet, I seldom read such a long article seriously, I have time to

The following points apply to all c ++ programmers. The reason why I say they are the most important is that you often cannot find them in C ++ books or websites. For example, the pointer to a Member is not to be mentioned in many documents, but

Object-oriented has three elements: Data abstraction, inheritance, and dynamic binding   Problem description:   1. An Expression Tree contains nodes that represent constants, unary operators, and binary operators. 2. We hope to create this tree by

Analyzing the problem The problem is very simple: Create a mechanic whereby it's possible to mark a class (say,NotABase) As being uninheritable, such that attempting to derive a class from that uninheritable class results in a compile-time error of

[OOD-More C ++ Idioms] Inner Class)The purpose of an Inner Class is to implement multiple interfaces without having to inherit multiple classes. At the same time, it can naturally convert Up-casting ). Multiple implementations of the same interface

ARC has been out for a long time, it is really convenient to automatically release the memory, but not absolute security will never create a memory leak. An invisible killer that causes iOS objects to not be released as expected is a circular

Law of Demeter (dump) is also known as the least knowledge principle (LKP ). Problem: The closer the relationship between classes, the greater the coupling degree. When a class changes, the greater the impact on the other class. An object should

  A static member is a member of a declared static class. All objects in the class share data. Youyuan is a common function defined outside the class, but it needs to be explained inside the class. In order to distinguish it from the member function

15th. Object-Oriented Programming OOP (Object-oriented programming)Object-oriented programming is based on three basic concepts: Data Abstraction , inheritance , and dynamic binding 。 In C + +, you use classes for data abstraction, and class

C + + Controls access to the private part of the class object, and the private or protected members of the class cannot be accessed directly outside. Generally, public-class methods provide a unique access path. Sometimes this restriction is too

Content Overview What are the six design principles of one, single responsibility principle two, the Richter substitution principle three, the dependence inversion principle four, the interface isolation principle Five, the Dimitri Law six, the open

A friend function is characterized by the ability to access a member function of a private member in a class. The friend function is syntactically the same as a normal function, that is, on definitions and calls, as with normal functions The needs

The question of the proposedWe already know that classes have the characteristics of encapsulation and information hiding. Only member functions of a class can access private members of a class, and other functions in the program cannot access

The basic idea of a class is data abstraction and encapsulation. Data abstraction is a programming technique that relies on interfaces and implements separation. The interface of a class includes the operations that the user can perform, and the

C + + friend, including friend function and friend//c++ friend function//c++ Friend class/* When a Class A declares another class B as its friend class, you can access the private content of a in B */#include Using namespace Std;class

smart pointer (smart pointer) is a class that stores pointers to dynamically allocated (heap) objects and is used for lifetime control to ensure that dynamically allocated objects are destroyed automatically and correctly to prevent memory leaks.

The main points and experiences of scw-c++ private class based on Directui2015.03in the design SCW in the process. Keep abreast of new knowledge, as a C + + beginner, new knowledge is like dew. Especially in the learning process, to see other people'

The application of graphs is probably the broadest of all data structures, but this is doomed to speak of "data structure of the graph" when there is nothing to say-the most important thing about the graph is the algorithm, and a considerable part