Structure in C++ Program
What is the basic structure of C++?
Explanation
Like any other programming language C++ also follows some basic structure to develop a program.
The "#include" directive is used to include the files specifed inside the "<>" brackets. Mostly standard files or header files of C++ are included using this directive like iostream.h, math.h etc.
The variables and other elements that need to be used all over the program or rather globally should be declared after the include directive.
The main function is executed first in a C++ program. If a main() is supposed to return a integer value then the return type should be specified as "int main()". If no value is returned simply use the return-type as "void".
The statements used inside the "main()" function can include the functions, classes used in C++ along with other statements.
#include <iostream.h>
void main()
{ cout << "Hscripts.com!";
}
The above is the example of a structure in C++.
The variables and other elements that need to be used all over the program or rather globally should be declared after the include directive.
Basic Structure of C++ program:
#include directive
Global Declarations
return-type main()
{ Statements
}
Global Declarations
return-type main()
{ Statements
}
Include Directive:
The "#include" directive is used to include the files specifed inside the "<>" brackets. Mostly standard files or header files of C++ are included using this directive like iostream.h, math.h etc.
Global Declarations:
The variables and other elements that need to be used all over the program or rather globally should be declared after the include directive.
main() Function:
The main function is executed first in a C++ program. If a main() is supposed to return a integer value then the return type should be specified as "int main()". If no value is returned simply use the return-type as "void".
The statements used inside the "main()" function can include the functions, classes used in C++ along with other statements.
For Example:
#include <iostream.h>
void main()
{ cout << "Hscripts.com!";
}
The above is the example of a structure in C++.
The variables and other elements that need to be used all over the program or rather globally should be declared after the include directive.
