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

Data structure, explain Storage management: free storage pool, garbage coll...

explain Storage management: free storage pool, garbage collection, compaction, boundary tag method; Hash tables and hashing functions

Constructor, Why copy constructor accepts reference to an object and not t...

Why copy constructor accepts reference to an object and not the object itself, whether ah hence it we do otherwise

Linking source code in vc++ 6.0, i have a project in BDD(Binary Decision Di...

i have a project in BDD(Binary Decision Diagram).. where i have to use BDD library...i m using cudd package which uses BDD technique...i download cudd package..try to run in vc++ 6

Cin, how we use the cin command and why we use this command????

how we use the cin command and why we use this command????

Write a program to sort an array of strings, Write a program to sort an arr...

Write a program to sort an array of strings. Use new and delete operators. Write a program to find the factorial of a number using recursion. If we do not accept the number

I need whatsapp software in my website, I need whatsapp software in my webs...

I need whatsapp software in my website Project Description: i need whatsapp software in my website same this whatsapp if anyone can make to me this in my website Skills

Define external static storage class - computer programming, Define Externa...

Define External Static Storage Class - Computer Programming? An external static is declared outside of all the functions and is obtainable to all functions in that program. The

OpenGL configured environment, 1. Using Visual C++ and your OpenGL co...

1. Using Visual C++ and your OpenGL configured environment, write an application that displays a “unique” graphical scene that you designed and coded for this course. What yo

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