friend class

I. Memorandum Mode Definition: capture the internal state of an object without compromising encapsulation, and save the state outside the object. In this way, the object can be restored to the previously saved state. Structure:   Scope of use: The

1.an iterator (iterator) is a data type that examines the elements within a container and iterates through the elements. (1) Each container type defines its own iterator type, such as vector:Vector::iterator ITER; This statement defines a variable

Analysis of C ++: youyuan classI. Reasons for the article In the previous article, I wrote a friend meta function. This time I wrote a companion article to continue to explore the friend Meta class.Ii. Definition All member functions of the

Friend: Friend class of friends function.Friend function: does not belong to any class, just declare in the class (can be placed in private or public, no difference), tell the class, this function is your friend, of course, friends are not white:

"Item 1-member function, friend function and general function are different" references(1) Read the following procedure and experience the instructions in the gaze (to execute the program, please find the course homepage and copy the Code)//Example:

C + + language Learning (vii)-friend one, friend Introduction 1, Friend introductionThe design mechanism of object-oriented programming implements the hiding and encapsulation of data, the member variables of class are generally defined as private

1. an iterator (iterator) is a data type that examines the elements within a container and iterates through the elements. (1) Each container type defines its own iterator type, such as vector:Vector::iterator ITER; This statement defines a variable

At first, I thought it was too dull. In the eighth chapter, the author's analysis of the object-oriented problem, I follow the design and development of the book, understand some of the concepts previously just seen in the book.Make some notes for

A.h fileClass A{Public:void MethodA ();...}; B.h fileClass B{Public:void MethodB ();...} It is now in Class A to invoke the method in Class B, and in Class B there is a method to invoke in Class A. Failed methods tested: Method 1: A.h file#include

forwarding Please indicate the source: http://blog.csdn.net/qq_28055429/article/details/51507170 One, single responsibility principle: in the case of a class, there should be only one reason for its change (that is, the implementation class should

The Dimitri Rule (LoD) is also known as the minimum knowledge principle (least knowledge PRINCIPLE,LKP), which, although the name is different, describes the same rule: an object should have a minimal understanding of other objects. In layman's

1#include 2#include string>3#include 4#include 5#include"thread_pool.h"6 7 8 using namespacestd;9templateclassT>Ten class Base{ OneFriend T;///Friend class A Private: - Base(){} -~Base(){} the }; - - classDerived: Public Virtual Base - { +

  This example shows three elements of object-oriented programming: data abstraction, inheritance, and dynamic binding. Problem: The Expression Tree of an arithmetic expression, such as (-5) * (3 + 4), corresponds to the following expression tree:  

C Friend-FriendFriend is used to break the limit of protected or private protection, the first thing to do is to be declared in the class of the visitor is a friend function or friend class. The code is as follows #include > using

Dimitri LawOne: The Dimitri rule defines:----> Dimitri (Law of Demeter,lod) is also known as the least-knowledge principle (Least knowledgePRINCIPLE,LKP),----> An object should have a minimal understanding of other objects. In layman's words, a

static meansThere are two types of representations in C + +, static member variables and static member functionsA static member in a class belongs to the current class only and does not belong to an object. A static member of a class has only one

Before I mentioned the concept of combinatorial classes, I'll introduce two classes, friends, and inner classes today.A combination class is an object in a class that has another class, such as declaring a class Penson, a member variable having a

This article from http://blog.csdn.net/canco/ 3. Method for deleting elements in the list containerFor list containers, since list itself has member functions of remove and remove_if, it is better to give priority to the list algorithm. For the

There are three types of membership declarations that can appear in the class template:1. Non-template friends or friends Functions The Foo () member functions bar () and foobar classes are the friends of all instances of the queueitem class

According to section 16.4 of the third edition of C ++ primer, the C ++ class template can be divided into the following situations:1. Non-template friends or friends functions. Here is an example:Class Foo {Void bar ();};Template Class queueitem