How to define global variable in C++ with an Example

In this program, we are going to share a How to define global variable in C++ with an Example. If you are a beginner and want to start learning the C programming, then keep your close attention in this tutorial as I am going to share a program for How to define global variable in C++ with an Example.

How to define global variable in C++ with Example

Copy the below C++ program and execute it with the help of Turbo C compiler. At the end of this program, We have shared the output of this program.

#include <iostream>

using namespace std;

//defining the global variable
int a=10;

int main()
{
    //defining the local variable
    int a=15;
    cout<<"local a: "<<a<<" Global a: "<<::a;
    
     ::a=20;
    cout<<"\nlocal a: "<<a<<" Global a: "<<::a;
    return 0;
}

#include <iostream>

using namespace std;

//defining the global variable

int a=10;

int main()

{

//defining the local variable

int a=15;

cout<<"local a: "<<a<<" Global a: "<<::a;

::a=20;

cout<<"\nlocal a: "<<a<<" Global a: "<<::a;

return 0;

}

If you like FreeWebMentor and you would like to contribute, you can write an article and mail your article to [email protected] Your article will appear on the FreeWebMentor main page and help other developers.

How to define global variable in C++ with an Example

How to define global variable in C++ with Example

Recommended Posts:

webmentor