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

Advantages to the use of functions, Question: (a) What is a function? A...

Question: (a) What is a function? Are functions needed when writing a C program? (b) State one of the advantages to the use of functions. (c) What do you meant by underst

201 it, overload assignment opertor to assign the data of one object to ant...

overload assignment opertor to assign the data of one object to anthor

Variables within c, Within software languages we have the ability to store ...

Within software languages we have the ability to store information in mail boxes i.e. memory slots which are given names to represent the box. The naming rules are governed by the

Looping, #questiStarting with a blank solution, write a program to prompt t...

#questiStarting with a blank solution, write a program to prompt the user for an employee number, hourly rate and hours worked. Compute and display the employee number, gross weekl

Explain operator overloading, Explain Operator Overloading It is one ty...

Explain Operator Overloading It is one type of Polymorphism, an significant feature of object-oriented programming .Polymorphism means one thing having many forms, i.e. here an

We want database development, Presently we are using several spreadsheets t...

Presently we are using several spreadsheets to give weekly activity and income reports. Much of the information is being frequently re-keyed into several spreadsheets - we are look

Pebble merchant, having 2 arrays and 3killograms of pebbles are needed conv...

having 2 arrays and 3killograms of pebbles are needed converting an area of 1 square meter the rate of pebble is $5 per killograms

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