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

Smuggler, Smugglers are becoming very smart day by day. Now they have devel...

Smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they are send

C++ code??, Write a program to find the area under the curve y = f(x) betwe...

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

Programming and solving problems with a computer, One person who is special...

One person who is specialist at programming and solving problems with a computer Project Description: Potential computer, hardware, programming and software genius, I look

Define the volatile keyword qualifiers in c language, Define the Volatile K...

Define the Volatile Keyword Qualifiers in C Language? The volatile keyword proceed as a data type qualifier and a volatile variable is for dynamic use. E.G. for data that is to

2, how to do 2, 4, 8 associativity

how to do 2, 4, 8 associativity

Padovan string, example of padovan string program

example of padovan string program

Board coloring , In this problem you are given a board in which some of the...

In this problem you are given a board in which some of the elements are placed as shown in diagram below. Each element represents a color. Fill the other elements in the board, suc

Wap to print the largest number from any 10 numbers, WAP TO PRINT THE LARGE...

WAP TO PRINT THE LARGEST NUMBER FROM ANY 10 NUMBERS #include stdio.h> #include conio.h>   void main()   {                    int a[10],i,max;

Wap to print any name on screen 10 times, WAP TO PRINT ANY NAME ON SCREEN 1...

WAP TO PRINT ANY NAME ON SCREEN 10 TIMES void main () { int a=1; clrscr(); do { printf ("expertsmind\n"); a++; } while (a getch (); }

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