Basic Structure of C++

Basic Structure of C++

Documentation section

Link Section

Definition section

Global declaration Section

Class class_name {                                                                                              Class definition Section Data Member --- Function member Function member -- };                                                                   return_type main(){                                                         Main function section      statements; }

   1.    Documentation Section:

This section contents set of comment line giving the name of the program, the author, algorithm, methods used and other details. This will be useful in future for the user and developing teams.

Eg. // This program is ….

   2.    Link Section

This section provides an instruction to the compiler to link classes, function, and operators with the program from the system library.

For eg: 

             #include<iostream>

             using namespace std;

   3.    Definition section

In this section, all symbolic constants are defined.  

For example: #define pi 3.14

   4.    Global declaration section

The variables which are used in more than one functions or blocks are called global variables.

   5.    Class definition section

This section contains all the user-defined class and their data members and function members.

   6.    Main Function section

Every C++ program starts main() function and it is called entry point function.

Within the main function, there are a declaration and executable parts.