What is default argument, C/C++ Programming

Assignment Help:

Default argument:

When the argument is missing then the function will read the default value of the missing

argument.  To make use of default argument functionality the argument must be initialized in the prototype or declaration.

Rules for declaring default argument:

1.   The default value must given from right to left arguments

2.   Cannot assign only the first argument as default when there is more than one argument.

3.   All the arguments may be default.

4.   When there is more than one argument the intermediate argument cannot be a default.

int f_def(int x, int y=20); // Default argument value initialized at prototype.

void main( )

{int a=10, b=15,c;

c = f_def(a, b); //The value of c is 15 c = f_def(a); // The value of c is 30

}

int f_def(int x, int y)

{ return (x+y);

}

 

 


Related Discussions:- What is default argument

Assignment, Classify computer systems according to capacity. How they are d...

Classify computer systems according to capacity. How they are different from computers according to the classification of technology. Provide comparative study also.

Boardcoloring, In this problem you are given a board in which some of the e...

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

C program to demonstrate pointer to variable, C program to demonstrate Poin...

C program to demonstrate Pointer to variable: void p2a(int *); void main() {                 int x=10, *a,**b;                 int arr[5];                 //poin

Program to calculation of mortgage interest rates, This assignment builds o...

This assignment builds on Homework 3. The two major modifications are the instruction of pointers and the calculation of mortgage interest rates. Requirements for Project 2:

Rules of inheritance, Rules of Inheritance: Private members are not...

Rules of Inheritance: Private members are not inherited; the members can be accessed only within its class. It cannot be used through the object. Protected members are

Array, Write a program to count the prime number in array

Write a program to count the prime number in array

M--commerce, Project Description: We are aiming to prepare an industry f...

Project Description: We are aiming to prepare an industry first in the m-commerce world. M-commerce payment processing programmers required Skills required are C Programmi

I need asp .net facebook app project completion, I need Asp .net Facebook a...

I need Asp .net Facebook app project completion Project Description: We are urgently seeking a few remaining items to be completed, and the project to be deployed to live.

multiplication of matrices with compatibility check, Normal 0 ...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

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