friend class

1 /************************************** **********************************2 @ file monitor. h3 * Author: qinqing4 * Date: 2009-12-25 *************************************** *********************************/67 # ifndef _ MONITOR_H89 # if WINVER 10

C + + review Note One (declaration definition of a class applied and constructor destructor section)Const in C is "a variable that cannot be changed", whereas in C + + The seed is "a constant of type description", constants must be initialized and

Native service is actually a Linux daemon, providing some services, but since the Android interprocess communication uses the binder mechanism, then we need to follow the Android rules to implement our Native service.The client uses a proxy class

Every program we develop uses some data, which is typically encapsulated in a custom class. For example a music program may have a song class, a chat program is another friend class, a la carte program will have a recipe class and so on. Sometimes

A smart pointer is a wrapper class that has a pointer to a real class object Reference count smart pointer, which is the reference count that should be held by the real class, not the wrapper class (smart pointer) For convenience, the

Conval. h # Ifndef conval_h# Define conval_h// Some constants usedConst int mo = 1;Const int Tu = 2;Const int we = 3;Const int th = 4;Const int Fr = 5;Const int SA = 6;Const int su = 0;# Endif   Calendar. h # Ifndef calendar_h# Define calendar_h #

Abstract: inheritance is a very important feature of C ++ and one of the three features of OO. I hope to make a simple discussion on it to eliminate some confusions.What is inheritance?Inheritance is a method of organizing related classes and

You should be familiar with the youyuan class. The youyuan class declaration will describe the whole class as the youyuan relationship of another class. All member functions of the youyuan class can be the youyuan function of another class; when I

1. Download ODB Library: ODB compiler, common Runtime Library, and database Runtime Library. Http://www.codesynthesis.com/products/odb/download.xhtml (Note: ODB compiler is the odb-x.x.x-i686-windows, database runtime libraries the database you

User-Defined types, such as string, date, plural number, Consortium, and files, often reload binary + operators to achieve object join, attaching, or merging mechanisms. However, correct implementation + operators will pose some challenges to the

Today, I have read chapter 13 of C ++ primer and summarized it. I. Replication Control 1: Replication control is a general term for copying constructor, value assignment operator, and destructor. They have some similarities, so they are collectively

1. Object-oriented Object-Oriented Programming is summarized as one sentence: sending messages to objects. The object-oriented program module consists of classes. 2. Class(1) Each class can be defined as an interface and an implementation. Interface:

  Self-turning blog: http://blog.csdn.net/zhu_xz/archive/2009/12/25/5076157.aspx The qtestlib framework provides an easy-to-use unit test framework. You need to add QT ++ = testlib to the project file. First read oneSimple Example: C/C ++ code #

Post [http://blog.csdn.net/glock18/archive/2004/07/14/42666.aspx]Since the development of object-oriented technology, people are no longer satisfied with the fact that the description of a thing is only on attributes and methods. Events are also a

There is no forced conversion between data types in VC. Both Java and C have: For example, in VC: Int A = 0 xfffe; // that is, 65534Char B = A; no compilation Error Str. Format ("% d", B );MessageBox (STR); // The result is-2. In Java: Int

Private implementation Slots Disclaimer: This article descrbes techiques that are not part of the public qt api, using them may result in non-portable or version specific code. the example below was tested with version 4.3.3 on 64bit Linux.OK so,

I wrote a two-way linked list in the previous article. Today I reviewed the circular linked list and wrote a circular linked list with a header node. The specific implementation is as follows: Node file (listnode. h ): template class

The base class derived class (derived class) 1 C ++ supports several methods of polymorphism: A uses an implicit conversion, convert from "pointer or reference of a derived class" to "pointer or reference of its common base class type" B. Use the

You are welcome to repost the original notes with lame legs. for reprinting, please indicate the source:   Previous review This famous saying goes:Deep in the human soul, there are many sleeping forces; awakening these forces that people have never

Behavioral patterns (behavior pattern) involves the assignment of tasks between objects and the algorithm for completing these tasks. It not only describes the object pattern or class design pattern, it also describes the interaction mode between