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

Assignment, Write a program that computes the cost of a long distance call....

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

C program for reverse the string , C Program for REVERSE THE STRING #i...

C Program for REVERSE THE STRING #include stdio.h> #include conio.h> #include string.h> void main() {           char name[30];           char *s;

Determine the size of an interger data type without using , Determine the s...

Determine the size of an interger data type without using sizeof() function? A: #include int main() { int *i ; int *j = i + 1; cout }

Programing, Define a structure to store roll no, name and marks of a studen...

Define a structure to store roll no, name and marks of a student. b) Using the structure of Q2. a), above write a ''C'' program to create a file "student.dat". There must be one r

Area under the curve, Write a c++ program to find the area under the curve ...

Write a c++ 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 c

Flowchart.., flowchart of c programing to check the given number is prime o...

flowchart of c programing to check the given number is prime or not

Assignment, Programming Assignment # 1 C and UNIX   The purpose of this ...

Programming Assignment # 1 C and UNIX   The purpose of this assignment is to get you more familiar with Unix/Linux and those constructs of C that are not part of C++. Write a C

Program to create a query from database, Implement (a part of) electronic e...

Implement (a part of) electronic election Scenario where following political parties are participating in election: PPP, PML and PTI.  Create a class PollingStation where it stor

Substitution model, (a) Write a procedure called (mult x y) that multiplies...

(a) Write a procedure called (mult x y) that multiplies two numbers x and y in a recursive manner using successive addition. Specifically, note that a x b = a + a + .... + a (b tim

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