class pointer

Polymorphism is one of the key techniques in object-oriented programming. Using polymorphic techniques, you can invoke functions of the same function name to achieve a completely different function. If the programming language does not support

C + + language learning (19)--c++ type recognition, Introduction to C + + type recognition 1, Introduction to C + + type recognitionC + + is a statically typed language whose data type is determined at compile time and cannot be changed at run

base class pointer to child class objectThe base class reference becomes the alias of the Child class objectStatic type-the type of the variable (object) itselfDynamic type-The actual type of the object to which the pointer (reference) pointsWhether

The sixth chapter polymorphism and virtual function6.1 Basic concepts of polymorphism and virtual functions IntroductionPolymorphism is a very important mechanism in object-oriented programming. It can effectively improve the scalability of the

Do java,android development. Because of the project needs, learning a little C + +, I will talk about the two days of the virtual function of understanding it. If you are wrong, please correct me. Also hope to initiate.The definition of virtual

# # #Implicit Conversions Implicit conversion* can be freely converted between the basic types;* Can convert any type of pointer to void pointer;* Sub-class pointer can be converted to base class pointer;* Will produce warning# # #static_cast静态转换*

The specific summary is as follows: (1) reinterpret_castThis function converts a pointer of one type to a pointer of another type.This conversion does not change the format of the pointer variable value (without changing the value of the pointer

Introduction : C + + object-oriented cumbersome mechanism, have to let you in the programming frequently "sick", find mistakes, find bugs, puzzles, is your source of disease, I am not what "physicians", but also summed up the following "prescription"

1.asm (assembly), as follows: ASM (instruction String); Allows you to embed assembly code in C + + programs.2. Auto (automatic, automatic) is a storage type identifier that indicates that the variable "automatic" has a local scope, and a

A good book here should be read earlier. To sum up, to facilitate future inspection. For_wind 1, as far as possible to replace #define with Const,enum,inline, or as far as possible to replace the preprocessor compiler#define可能并不进入符号表 (symbol table)

What exactly did the compiler do to implement the late binding of virtual functions? Let's find out what's going on. The compiler creates a table (called V TA B L E) for each class that contains a virtual function. In v TA B L E, the compiler

Original from http://blog.csdn.net/dardgen/article/details/18790977 Virtual functions, pure virtual functions, virtual base classes, all of which are related to virtual, and these three definitions with medieval are confusing, so let's explain the

First of all, in understanding what is polymorphic before, to understand what is a virtual function, the virtual function for polymorphism has a decisive role, there are virtual functions to form polymorphic. How to create a class with a virtual

Turn from: http://blog.csdn.net/hackbuteer1/article/details/7475622 C + + programming language is a wide range of applications, supporting a variety of programming language computer programming. Today we will give you a detailed description of the C

In the object-oriented C + + language, virtual functions (virtual function) are a very important concept. Because it fully embodies the object-oriented concept of inheritance and polymorphism of these two characteristics, in the C + + language

One: inline function函数调用也会带来降低效率的问题，因为调用函数实际上将程序执行顺序转移到函数所存放在内存中某个地址，将函数的程序内容执行完后，再返回到转去执行该函数前的地方。这种转移操作要求在转去前要保护现场并记忆执行的地址，转回后先要恢复现场，并按原来保存地址继续执行。 因此，函数调用要有一定的时间和空间方面的开销，于是将影响其效率。特别是对于一些函数体代码不是很大，但又频繁地被调用的函数来讲，解决其效率问题更为重要。引入内联函数实际上就是为了解决这一问题。

There are two styles of type conversion in C + +, a C-style, a C + + style.C-style: int a = int (2.33);C + + has four new cast operator,static_cast (VAR), Const_cast (Var), Reinterpret_cast (Var), Dynamic_cast (Var)Static_cast (Var) is used to

Type conversions in C + + are divided into two types:1. Implicit type conversions (whereas for implicit transformations, which are standard conversions, in many cases inadvertently occur, such as the int type and the float type, the int type is

[C ++] type conversion Introduction The C ++ style has four conversion methods: static_cast, dynamic_cast, reinterpret_cast, and const_cast. Welcome to lovickie's blog http://www.cnblogs.com/lovickie Static_cast Static_cast can be used for

Http://blog.sina.com.cn/s/blog_625ef6610101g9f2.htmlDefinition: A member function syntax declared in a base class as virtual and redefined in one or more derived classes: The virtual function returns the type function name (parameter table)