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

Pointer to function, how many values we can return from pointer to function...

how many values we can return from pointer to function?

Influence on Social media - for Geek''s, Recently social media has been flo...

Recently social media has been flooded by fb posts, tweets, news articles about only thing demonetization.A great debate is ongoing over it. Most of the people discussing in social

Developing programs in the c++ programming language., I. COURSE DESCRIPTION...

I. COURSE DESCRIPTION Develops a working knowledge of object-oriented concepts in areas of classes, inheritance, data structures, error handling, templates and file processing.

Project (network programming), Need help in network programming in C++ proj...

Need help in network programming in C++ project. How much you charge?

Demo assignment, Please send me demo assignment,I want work

Please send me demo assignment,I want work

Assignment, write a function rise to the power to find the exponent of a nu...

write a function rise to the power to find the exponent of a number whether function is called

Write a haskell program, Write a Haskell program that calculates a balanced...

Write a Haskell program that calculates a balanced partition of N items where each item has a value between 0 and K such that the difference between the sum of the values of first

What are compound statements, What are compound statements? - Compound ...

What are compound statements? - Compound statements are made up of two or more program statements that are executed together. They may be executed with a loop. - Curly brack

Function declarations and function definitions in cpp, FUNCTIONS It refe...

FUNCTIONS It refers to a subprogram that is meant to do a certain task. It is basically used to execute a set of operations and return information to the main or calling functio

Integer variable, how do you declare an integer variable

how do you declare an integer variable

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