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

#, YOU HAVE GIVEN THE MARKED UP PRICE OF 80% AND DISCOUNT PRICE OF 10% THEN...

YOU HAVE GIVEN THE MARKED UP PRICE OF 80% AND DISCOUNT PRICE OF 10% THEN FIND THE SELLING PRICE

Padovan string., #question.A Padovan string P(n) for a natural number n is ...

#question.A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concatenation. For a s

D, drawbacks in assignments in engeenirng

drawbacks in assignments in engeenirng

Board Coloring , In this problem you are given a board in which some of the...

In this problem you are given a board in which some of the elements are placed as shown in diagram below. Each element represents a color. Fill the other elements in the board, suc

Rules of inheritance, Rules of Inheritance: Private members are not...

Rules of Inheritance: Private members are not inherited; the members can be accessed only within its class. It cannot be used through the object. Protected members are

Loop, A company needs 200 pencils per year . you cannot simply use this pr...

A company needs 200 pencils per year . you cannot simply use this price as the cost of pencils two years from now. Because of inflation the cost is likely to be higher than it is

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

Can copy constructor admit an object of the same class , Can copy construct...

Can copy constructor admit an object of the same class as parameter, rather than reference of the object?

Algorithm, make a marksheet of 2 student with 5 subject

make a marksheet of 2 student with 5 subject

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