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

Describe problem with runtime type identification?, Describe problem with R...

Describe problem with Runtime type identification? A: The run time kind identification comes at cost of performance penalty. Compiler maintains class.

Program, fine the class bankAccount to implement the basic properties of a ...

fine the class bankAccount to implement the basic properties of a bank account. An object of this class should store the following data: Account holder''s name (string), account nu

Minimum shelves, write a c++ program, that finds the minimum total number o...

write a c++ program, that finds the minimum total number of shelves, including the initial one, required for this loading process.

Filing in C++, how to search, display all data and delete data

how to search, display all data and delete data

Source code on home stay, I am doing project on home stay which includes fe...

I am doing project on home stay which includes features like add homestay,search,book,delete homestay,

Area under curve, Write a program to find the area under the curve y = f(x)...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

Nested if else, input marks of c and c++ if c grater than equal to 50 grate...

input marks of c and c++ if c grater than equal to 50 grater than 50 you are pass if c greater than equal to 50 c++ less than 50 than supplementry c++ if c less then 50 and c++ gra

Program to calculate the average sales for each employee , There are 2...

There are 25 employees in a business. Each employee has 5 sales each day of the month (Assume there are 30 days in each month of the year). Draw a flowchart for a pr

Program that print the number of hops, You are working for a computer gamin...

You are working for a computer gaming company and have been asked to look at a survival game.  You will be simulating a rabbit stranded on an island, collecting a large number of s

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