Call by reference, C/C++ Programming

Assignment Help:

Call by reference:

Arguments to a function can be passed in two way; one by call by value and other by call

by reference.  Call by value is passed either through a constant or variable.  The call by reference is passed through address operator (&).  In C the function definition argument must be declared as pointer variable to pass by reference, where as in C++ the call by reference can be used without declaring the function arguments as pointer variables.  But in C++ both pointer argument method and without pointer argument can be adopted.

 

void f_ref(int &a, int &b); // void f_ref(int, int) is wrong for reference variable;

void main( )

{int a, b;

f_ref(a, b); // The value a is 10 and b is 20.

 

 

}

void f_ref(int &x, int &y)

{x =10;

y=20;

}


Related Discussions:- Call by reference

How to define a structure, How to Define a Structure? Structure declara...

How to Define a Structure? Structure declarations are rather more complicated than array declarations, ever since a structure must be defined in terms of its individual members

Encryption/Decryption, I need to include files so you can understand easier...

I need to include files so you can understand easier.

develop a calculator in masm, Part 1 Assignment:  develop a calculator...

Part 1 Assignment:  develop a calculator in MASM. Text chapters covered:  1 through 4, 5.4, 5.5, 6.3, 7.4 You will develop a "calculator" algorithm in MASM using reverse-

System programing, #quesdifferentiate betweenrelocatable and self relocatin...

#quesdifferentiate betweenrelocatable and self relocating program with exampletion..

Tower of hanoi, application problem of tower of hanoi

application problem of tower of hanoi

Accessibility, What are the legal requirements with which websites must com...

What are the legal requirements with which websites must comply in order to meet the needs of persons with disabilities? Why is maximizing accessibility important to everyone?

Describe what is a listener in java, Problem: (a) Show the Java approac...

Problem: (a) Show the Java approach to event processing by explaining how event handling works in Java. Make use of a suitable example to support your answer. (b) Describe

Least coast method, Find out initial basic feasible solution for the given ...

Find out initial basic feasible solution for the given transportation problem using Least Cost Method (LCM).

Explain the bit wise operations, Explain the Bit Wise Operations? C lan...

Explain the Bit Wise Operations? C language in particular was created to make it easier to write operating systems. The objective was to have a language that provided excellent

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