class pointer

Virtual functions in C ++ (1) Author: Aber Although it is difficult to find a C ++ book or magazine that does not discuss polymorphism, most of these discussions make it difficult to use polymorphism and C ++ virtual functions. In this article, I

1> 〉 Class {Public:Virtual void F () {cout }; Class B: Public {Public:Virtual void F () {cout };Class C: Public {Public:Virtual void F () {cout };Void test (A * ){A-> F ();};Int main (INT argc, char * argv []){B * B = new B;C * c = new C;Char

Reprinted from the website http://www.vckbase.com/document/viewdoc? Id = 950. Thank you for providing it. Although it is difficult to find a C ++ book or magazine that does not discuss polymorphism, most of these discussions make it difficult to use

Differences between the four cast operators of C ++Not my original ---------------------------------------------------------------------- Q: What is C style conversion? What are static_cast, dynamic_cast, and reinterpret_cast? What is the difference?

Polymorphism in the 1.c++(1) Polymorphism: The invocation of the same function can perform different operations, and function overloading is a means of realizing polymorphism.(2) Link: Join during the compilation phase. That is, the point of Call of

Although it is difficult to find a C + + book or magazine that does not discuss polymorphism, most of these discussions make it difficult to use polymorphism and C + + virtual functions. In this article, I intend to make the reader understand the

I am a beginner in C ++. I think this part of virtual functions is profound and profound. C ++ implements polymorphism through virtual functions. In C ++, the function that starts with the virtual keyword is a virtual function, and the virtual

While it is difficult to find a C + + book or magazine that does not discuss polymorphism, most such discussions make polymorphism and the use of C + + virtual functions seem difficult. I intend to make the reader understand the virtual function

First, let's review the C ++ type conversion: C ++ conversions include implicit conversions and Explicit conversions. Part 2. implicit type conversion When implicit type conversion occurs In the following cases, the compiler automatically converts

This is because the basic class pointer is used to destroy the behavior of the derived class object. If the base class does not have a virtual destructor, a problem occurs. We know that there is no problem in deleting the pointer object. The

Usage of pointers in MFC applications 1) Get the doc pointer in the view 2) obtain the mainframe pointer in the app 3) obtain the mainframe pointer in the view. 4) obtain the view (created) pointer 5) Get the pointer to the current document 6) Get

Virtual functions in C + + (i)Author: aber Although it is difficult to find a C + + book or magazine that does not discuss polymorphism, most of these discussions make it difficult to use polymorphism and C + + virtual functions. In this article, I

First, we give the base class animal and the sub-class fish. ============================================================== // animal.h /// begin : 2012-06-30 //author : Zwq //describe: In the case of a non-virtual function, the child

1. encapsulation, inheritance, and this pointer 1.1 encapsulation (encapsulation) Declare data members as private, and do not allow external random access. They can only be operated through specific interfaces. This is

This is my work in the process of learning MFC. In fact, it is just a small learning note, which is not an article. Sharing it is just a hope to help those beginners of MFC a little bit, and hope to get the old birds correct. Well, let's skip the

Document directory 1. Object Space and virtual functions 1.2 vptr and vtable 2. Structure and Analysis 3. Different implementations Appendix 1 incremental links and ILT Appendix 2 Name mangling/demangling of C ++ Appendix 4 generate mapfile

The access between documents, views, and frameworks in MFC has been a common topic, but I don't think there are any detailed descriptions. For those with poor English, I checked some blogs and summarized them! I hope it will be helpful to people

From: http://blog.sina.com.cn/s/blog_4d8205e40100gjfe.html To understand the relationships between documents, views, framework windows, and document templates, you must understand their structure.1. First Cwinapp Have a full understandingIt

implicit conversion (implicit conversion) Short a=; int b;b=a;Short is two bytes, int is four bytes, the conversion from short to int is a wide transform (the bit number is increased), the compiler does not have warning, as shown in. The widening

The difference between the four cast operators of C + +Not my original-------------------------------------------from:http://blog.csdn.net/hrbeuwhw/article/details/7884797--- ------------------------Q: What is C-style conversion? What are