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

C#, 1. write a program named InputMethodDemo2 that eliminates the repetitiv...

1. write a program named InputMethodDemo2 that eliminates the repetitive code in the InputMethod() in the InputMethodDemo program. Rewrite the program so the InputMethod()contains

What is object variable, The definition of an object(variable ): We can...

The definition of an object(variable ): We can explain a variable(set memory to the variable) in the following ways. e.g. double salary; int month; When more than o

Reverse a string - c ++ program, Reverse a string - C ++ program: Writ...

Reverse a string - C ++ program: Write a program in c to reverse a string. int main() {     Stack theStack;     String reverse("reverse");       cout

3n+1, Consider the following algorithm to generate a sequence of numbers. S...

Consider the following algorithm to generate a sequence of numbers. Start with an integer n. If n is even, divide by 2. If n is odd, multiply by 3 and add 1. Repeat this process wi

C program for function of count the characters in each word, C Program for ...

C Program for FUNCTION OF COUNT THE CHARACTERS IN EACH WORD void count(char c[]); void main() {           char a[50];           int i=0;           clrscr();

Html, world wide web

world wide web

Store first n natural no in a file - c program, Program is to store first n...

Program is to store first n natural no in a file: Write a program to  store first n natural no in a file void main()     {     fstream file;     file.open("studen

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

''c'' programme, Write a ''C'' program to accept any 3 digit integer number...

Write a ''C'' program to accept any 3 digit integer number from the keyboard and display the word equivalent representation of the given number.

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