Define external storage class - computer programming, C/C++ Programming

Assignment Help:

Define External Storage Class - computer programming?

When a variable is declared outside a function the storage is permanently assigned to it and its storage class is 'extern' and a declaration for an external variable can look just the name as a local variable declaration. Such a variable is considered to be as global to all functions declared later than and upon exit from the function or block, the external variable remains in existence. These variables are able to be accessed by any function in the program.

Illustration is

extern int a=1, b=2;

The External variables never disappear because they exist throughout the execution life of the program and they can be used to transmit value across functions. They may be unseen if the identifier is redefined.

All the functions have external storage class. This signifies that the key word extern can be used in function prototypes and in function definitions. 


Related Discussions:- Define external storage class - computer programming

Define some features of register storage class in c program, Define some fe...

Define some features of register storage class in c program? The feature of variable defined to be of register type all as follows: Storage - CPU registers Default initia

When should you use multiple inheritance, There are 3 acceptable answers: "...

There are 3 acceptable answers: "Never," "Rarely "and" When the problem domain cannot be accurately modelled any other way."

Define register simply with bit fields, Define register with bit fields? ...

Define register with bit fields? We could define register simply with bit fields: struct DISK_REGISTER { unsigned ready:1; unsigned error_occured:1; unsigned disk_spinni

Destruction of local object, Need assignment help What's the order that ...

Need assignment help What's the order that local objects are destructed?

Help, Deliverables: you are required to upload your c code in the assignmen...

Deliverables: you are required to upload your c code in the assignment dropbox set in Moodle. You are supposed to work with Linux gcc compiler and pico editor for compiling via the

Write a program to compute the equation, Write a program to compute the fol...

Write a program to compute the following equation for values of time.           y = 2x+3   The values of time are stored in the file program.dat and the solution should be display

Gaming tracks company for a mobile game developing, We want Guys For Job in...

We want Guys For Job in Gaming Tracks Company for a mobile game developing Project Description: I want a team of game developers for life-time as mobile dev team in my compan

C program to print character array, Program to print character array : ...

Program to print character array : Write a program to print the character array by using string class functions. void main() {  char line[30];   int i=0;   clrsc

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd