what member function

Operator overloading, which is essentially a function overload, is overloaded as a member function, and it is free to access the data members of this class, and is always used to access overloaded operators through an object of the class. In the

As with static data members, static member functions are shared by all objects, not individually, because static member functions do not pass the this pointer, so static member function can only access static members and cannot access non-static

Seeing the const keyword, the first thing a C + + programmer might think of is a const constant. This is not a good reflex. If you only know to define constants with const, then it is equivalent to using gunpowder only to make firecrackers. The

From a second-level question, we can see the member function overload operators and the friends function overload operators. First question: Which of the following operators can be reloaded by the friend functions: A) =, + ,-,\ B) [], +, (), new

C ++ Exception Handling model not only supports process-oriented C styleProgramIn addition to Exception Handling (that is, there is no object-oriented concept, it is completely a C program. The whole program is actually a collection of functions,

A function pointer indirectly invokes a function by pointing to a pointer to a function. function pointers can be implemented to encapsulate the function of parameter type, parameter order and return value, which is a way to realize polymorphism.

Summary of the use of C + + static member variables and static member functions: one. Static member Variable:A data member in a class body is preceded by a static keyword, and the data member becomes a statically data member of the class. As with

Recently see effective C + + often see some and static related content, hope that a comprehensive collation, if not all, also hope to add:Static member variables in Class 1Static members Unlike normal data members, static data members exist

It is very troublesome to compile callback functions using MFC or other C ++ applications. The root cause is that the callback function is based on the C-programming windows SDK technology, not for C ++,ProgramA member can directly use a C function

This article describes how polymorphism is implemented, and how to implement polymorphism, even if it is not known to the program designer, but it is of great significance for deepening the understanding of polymorphism, so we will explain the

Reprinted from: http://c.biancheng.NET/cpp/biancheng/view/2996.html Click to open linkAs can be seen from the example in the previous section, the object's memory model retains only the member variables, except that there is no other information,

There are function pointers in C + +, which are declared as follows:void (*p) (float) where p is a function pointer, if we define a functionvoid Fun (float) so we can assign P = fun or P = &fun to PAt the same time, there is a concept called member

Smart pointers (smart pointer) is a objects that acts like a pointer but adds functionality not provided by the pointer. For example, C ++ proverbs: using objects to manage resources describes the standard auto_ptr and tr1 :: how is shared_ptr

From:http://www.cnblogs.com/shijingxiang/articles/5389294.htmlRecently, the thread pool needs to be encapsulated into a C + + class named ThreadPool. Call Pthread_create in the member function Exec_task of the class to start the thread execution

MFC interface Packaging -- The asserted call of the member function fails when multiple threads are used. I often see the following problems on the Forum:DWORD winapi threadproc (void * pdata) // thread function (for example, used to obtain data

MFC interface Packaging An error occurred while calling the member function when multithreading. I often see the following problems on the Forum:DWORD winapi threadproc (void * pdata) // thread function (for example, used to obtain data from the

normal function pointer: "Return_type (*ptr_name) (para_types)"Class member function pointer: "Return_type (class_name::* ptr_name) (para_types)"Class data member pointer: "type class_name::* ptr_name";C + +:1 classDemo2 {3 Public:4Demo ():d ATA ( -

1. Usage of member function pointers1#include 2 using namespacestd;3 class Base4 {5 Public:6 intTestintLhsintRHS)7 {8cout"Base Test"Endl;9 return 1;Ten } One }; A classDerived Public Base - { - Public: the

To use a class member function as a C callback function Ask a question:Callback functions are based on the C programming Windows SDK Technology, not for C + +, programmers can be a C function directly as a callback function, but if you try to

One, operator overloadingThe operands of predefined operators in C + + can only be basic data types, and in fact, for many user-defined types, similar operations are required. What would happen if these existing operators in C + + were directly