Define scope rules of c program - computer programming, C/C++ Programming

Assignment Help:

Define Scope Rules of C program - Computer Programming?

The fundamental rule of scope is that identifiers are accessible only within the block in which they are declared and they are unknown outside the boundaries of that block.

The scope of the variable determines over what part of the program and a variable is actually available for use.

Let us see a simple instance

main()
{
int a=2; /*outer .block a*/

printf("%d\n",a); /* 2 is printed*/

{
int a=5; /*inner block a*/

printf("%d\n",a); /* 5 is printed*/

} /*back to the outer block*/

printf("%d\n",a); /* 2 is printed*/
}

Every block introduces its own nomenclature. A name of outer block is valid until an inner block redefines it. If redefined the outer block name is masked or hidden from the inner block.


Related Discussions:- Define scope rules of c program - computer programming

What is b-tree, B-tree: A B-tree is an also called balanced m-way tree. A ...

B-tree: A B-tree is an also called balanced m-way tree. A node of the tree may have many records or key and pointers to children. It is also called as the balanced sort tree. It s

A client and a server for an instant messaging system based , Develop a cli...

Develop a client and a server for an instant messaging system based on UDP and IPv4

C program for function of count the interest , C Program for FUNCTION OF CO...

C Program for FUNCTION OF COUNT THE INTEREST float si(float,float,float); void main() {           float p=0,r=0,n=0,k=0;           clrscr();           printf("E

Class and object, how to write c++ code for financial system using class an...

how to write c++ code for financial system using class and object

Write a program for coupon redemption, The video game machines at your loca...

The video game machines at your local arcade output coupons depending on how well you played the game, you can redeem 10 coupons for a candy bar, 6 coupons for .a medium soft drink

Virtual constructor, Is it possible to have Virtual Constructor? If yes, ho...

Is it possible to have Virtual Constructor? If yes, how? If not, Why not possible?

Explain operators in c language, Explain Operators in C Language? The C...

Explain Operators in C Language? The C language is very rich in built - in - operators and it places more significance on operators than do most other computer languages. The C

Pointer, how to use a pointer variable?

how to use a pointer variable?

Simplify the logical phrase with C++, hi i want wite a C++ program that get...

hi i want wite a C++ program that get one logical phrase (included {x,y,z,w,1,0}) and simplify it! but i ''m confused! thanxs for anubody help me...

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