- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to declare a global variable in C++
To declare global variables in C++, we can declare variables after starting the program. Not inside any function or block. If we want to declare some variables that will be stored in some different file, then we can create one file, and store some variable. For some external file sometimes we need to put the extern keyword with it. Also we have to include the external file with the actual program file.
Example
extern int x = 10; extern int y = 20;
Example
#include<iostream>
#include"global.cpp"
using namespace std;
int main() {
cout << x << endl;
cout << y << endl;
}Output
10 20
Updated on 30-Jul-2019 22:30:26
- Related Questions & Answers
- How to declare a global variable in PHP?
- How to declare a global variable in Python?
- How do I declare a global variable in Python class?
- How to declare global Variables in JavaScript?
- How to declare global variables in Android?
- How to declare a variable in MySQL?
- How to declare a variable in C++?
- How to declare a variable in Python?
- How to set a global variable in Postman?
- How to create a Global Variable in Postman?
- MySQL how to declare a datetime variable?
- How to declare a local variable in Java?
- How to declare a variable correctly in a MySQLProcedure?
- How to define global variable in a JavaScript function?
- How to use a global variable in a Python function?
Advertisements