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

Explain reusability, Reusability  Reusability means reusing code writte...

Reusability  Reusability means reusing code written earlier, may be from some earlier project or from the library. Reusing old code not only saves development time, but also sa

Float number, We can combine more than one variable on the same line i.e. ...

We can combine more than one variable on the same line i.e.   float number1,number2,number3; etc Sometimes we want to mix the variable types used on the same line, this could

Fibonacci series, draw the flow chart to print the fibonacci series upto n ...

draw the flow chart to print the fibonacci series upto n th terms

I want nike twitter rsvp bot, Project Description: Project Description: ...

Project Description: Project Description: I am seeking a programmer who will be able to design some software that will allow the user to: 1) Repeatedly monitor Nike twitter a

We want database development, Presently we are using several spreadsheets t...

Presently we are using several spreadsheets to give weekly activity and income reports. Much of the information is being frequently re-keyed into several spreadsheets - we are look

Application for tag in the forest game, Your program should use the Free Pa...

Your program should use the Free Pascal compiler or the Lazarus IDE described in CSC 540. When you hand in your assignment to the digital dropbox, it should be a .PAS file, not zip

C++ multiplayer game programming project, C++ Multiplayer Game Programming ...

C++ Multiplayer Game Programming Project Project Description: We are seeking an experienced C++ Game Programmer to enhance clientside related aspects of MCS: Mars City Securi

Palindrome, A palindrome is a string that reads the same from both the ends...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

Algorithme, algorithm to find whether a given number is prime number or not...

algorithm to find whether a given number is prime number or not? using pseudo code and flowchart

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