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

Store marks and name, Program is to store marks and name, roll no in a file...

Program is to store marks and name, roll no in a file: class stud   {     int rno;     char name[20];     int m1,m2,m3;     public:                 void acce

Saha, find the minimum total number of shelves

find the minimum total number of shelves

Priority Queue, Ask question #Minimum 100 words acceptedEducational Objecti...

Ask question #Minimum 100 words acceptedEducational Objectives: After completing this assignment, the student should be able to accomplish the following: Apply generic algorithms i

C program to handle stack using exception handling, Aim: To implement a pr...

Aim: To implement a program to handle stack overflow, underflow and odd number exception using Exception Handling. Code: #include #include #include #define MAX

Flowchart, how to define a contanst in a flowchart like we do in c language...

how to define a contanst in a flowchart like we do in c language

Write a program that computes the cost of a long distance ca, Write a progr...

Write a program that computes the cost of a long distance call. The cost of the call is determined according to the following rate schedules. a. A call made between 8:00 AM and 6:

Are comments included during compilation stage, Are comments included durin...

Are comments included during compilation stage and placed in EXE file as well? - No, comments encountered by compiler are disregarded. - Their only purpose is ease and guida

Dynamic constructor, dynamic initialization of object using constructor in ...

dynamic initialization of object using constructor in C++

Derivatives and symbolic math, #Hi, I''m planning to derive the escape velo...

#Hi, I''m planning to derive the escape velocity through C++. I would just like to know if it''s possible to differentiate symbolic functions? Do I need to download libraries,etc?

Program Preprocessor variable postfix , Run the following C++ program with ...

Run the following C++ program with and without preprocessor variable POSTFIX defined. #include using namespace std; extern "C" int atoi( const char *str );

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