calling function from another class c

In programming, we often encounter the requirements for calling member functions through function pointers in a "class", such, when the sorting function qsort in the C ++ standard library is used in a class, because the qsort parameter requires a

In programming, we often encounter the requirements for calling member functions through function pointers in a "class", such, when the sorting function qsort in the C ++ standard library is used in a class, because the qsort parameter requires a

C ++ from scratch (11) -- Knowledge about classes Due to space limitations, this article is the next article in "C ++ from (11)", discussing polymorphism and other issues. Virtual meanings The middle part of this article has already introduced the

These days to write a few small program practiced hand, when preparing to export a class, I found that I do not know if the extension DLL without MFC, how to export. But I know dllexport can export functions and variables, and MFC extension DLL even

In my other article, I mentioned the need to analyze the truth about virtual function calls through assembly languages. Now we start to embark on this difficult but interesting journey. If you want to talk less about other things, go to the topic.

The object of a class acts as a data member of another class. A data member in a class can be an object of a class in addition to the basic data types such as int, char, float, and so on. Creates a new class with child objects. In C + +, when the

1.Base class and derived class: When a class is derived from another class, the original class is called the base class, And the inherited class is called the derived class. The basic syntax is: Class subclassname: Public baseclassname {}; Public

Programmers who use C/C ++ to develop software often encounter this problem: sometimes there is no problem in program compilation, but the function is always reported when the link is used (the classic LNK 2001 error ), sometimes there are no errors

C ++ class and object details, object details 1. What is a class? 1-1 Development of Program Design 1-2 process-oriented to object-oriented 1-3 class definitions 1-4 constructor destructor

If you have switched from another language such as C # or Java to C ++, you will feel that, it is intuitive to avoid calling virtual functions in class constructor or destructor. However, in C ++, violating this principle will cause unpredictable