What is the purpose of 'extern' in C?

Asked by Last Modified  

2 Answers

Learn C Language

Follow 1
Answer

Please enter your answer

Sadiq

C language Faculty (online Classes )

The extern keyword in C is used to declare a variable as a global variable such that a variable declared in another scope of the same file or another file can be accessed from anywhere in the program. The variables or functions declared with the extern keyword in C will be linked externally(external...
read more
The extern keyword in C is usedto declare a variable as a global variable such that a variable declared in another scope of the same file or another file can be accessed from anywhere in the program. The variables or functions declared with the extern keyword in C will be linked externally(external linkage). read less
Comments
Dislike Bookmark

Professional Trainer

The extern keyword in C is used to declare a variable as a global variable such that a variable declared in another scope of the same file or another file can be accessed from anywhere in the program. The variables or functions declared with the extern keyword in C will be linked externally(external...
read more
The extern keyword in C is used to declare a variable as a global variable such that a variable declared in another scope of the same file or another file can be accessed from anywhere in the program. The variables or functions declared with the extern keyword in C will be linked externally(external linkage) read less
Comments
Dislike Bookmark

Related Questions

C machine independent Programming Language? C is portable . Means What?
It can work on various hardware configuration . C doesnt require mandatory or same set of hardware to run program. A program can written on one comp. And can run on other comp.(machine)
Shiva
What is the use of semicolon at the end of every statement?
Computer languages are just like our normal communication languages. Hindi, eng etc. Enable to communicate us with each other. Similarly computer language helps us to communicate with computer. As a full...
Krishna
Why is there no C-- language that simplifies the C language?
C++ stands for additional functionality and the original programming language was C. There is no downgraded version of C so there is no C--.
Komal
0 0
7
I would like to know how we can use two dimensional arrays in strings? I would also know whether we can compare two dimensional strings?
// Two-dimensional array. int array2D = new int { { 1, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 } }; // The same array with dimensions specified. int array2Da = new int { { 1, 2 }, { 3, 4 }, { 5, 6 }, { 7,...
Harsha
What is C language?
It is a general purpose high level language used to make software for operating systems (kernel programms), game development, Embedded devices etc. It avoids the complexity of writing machine code and...
Shiva

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Programing Languages Learning Tricks
You want to learn that new language or library or framework as soon as possible, right? That’s understandable. Fortunately, there are a handful of tips that can help you to better retain all of that...
H

Harshal G.

0 0
0
C INTRODUCTION

Nagaraju Tanguturi

0 0
0
Basics Of C And C++
C++ is powerful, highly flexible, and adaptable programming language that allows software engineers to organise and process information quickly and effectively. But this high-level language is relatively...

Dev Group

1 0
0
Some Tricky Questions in C
Can you write two functions in which one executes before main function and other executes after the main function? #pragma startup #pragma exit Where, priority is optional integer value.For user priority...

Sahana D.

1 0
0
C Program-Prime Number
/*WAP to print a number entered by the user is prime or not*/ //Header files #include<stdio.h>#include<conio.h> //Main function void main(){ int num,i; //Function for clearing screen clrscr();...

Salim Ahmed Ansari

0 0
0

Recommended Articles

Brilliant Academy, a reputed B. Tech Tuition...

Brilliant Academy is one of the reputed institutes for B.Tech tuition classes. This institute is specialised in delivering quality tuition classes for B.E, Engineering - all streams and Engineering diploma courses. Incorporated in 2012, Brillant Academy is a brainchild of Mr Jagadeesh. The main motto of the academy is to...

Read full article >

Lasya Infotech: An educational Training...

Lasya Infotech is a Hyderabad based IT training institute founded in 2016 by O Venkat. Believing in his innovation, passion and persistence and with a diverse blend of experience, he started his brainchild to deliver exemplary professional courses to aspiring candidates by honing their skills. Ever since the institute envisions...

Read full article >

Why Should you Become an IT Consultant

Information technology consultancy or Information technology consulting is a specialized field in which one can set their focus on providing advisory services to business firms on finding ways to use innovations in information technology to further their business and meet the objectives of the business. Not only does...

Read full article >

What is Applications Engineering all about?

Applications engineering is a hot trend in the current IT market.  An applications engineer is responsible for designing and application of technology products relating to various aspects of computing. To accomplish this, he/she has to work collaboratively with the company’s manufacturing, marketing, sales, and customer...

Read full article >

Find C Language Classes near you
C Language Classes in Bangalore
C Language Classes in Hyderabad
C Language Classes in Delhi
C Language Classes in Pune
C Language Classes in Chennai
C Language Classes in Mumbai
C Language Classes in Kolkata
C Language Classes in Noida
C Language Classes in Ghaziabad
C Language Classes in Gurgaon

Looking for C Language Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you