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

#palindrome, replace character into string and return value of string that ...

replace character into string and return value of string that are replaced

Inheritance, example of program to ad two numbers

example of program to ad two numbers

#, #Write a program to find the area under the curve y = f(x) between x = a...

#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

String, what is a string?

what is a string?

Static data meber and const data meber, can we use const data member in sta...

can we use const data member in static. member function with example.

Cipher: Decrypt and Encrypt, You must write a program that can both decrypt...

You must write a program that can both decrypt and encrypt a single word that is entered by the user. The initial choice of encryption and decryption is left up to the user. Addi

Explain encapsulation and data hiding, Encapsulation and Data Hiding Th...

Encapsulation and Data Hiding The property of being a self-contained unit is known as encapsulation. The idea that the encapsulated unit can be used without knowing how it work

C++, Byteland county is very famous for luminous jewels. Luminous jewels ar...

Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

Assignment, can you tell me what is c#

can you tell me what is c#

Make c code works equally on 64 and 32 bit, Project Description: I have ...

Project Description: I have a code that works different on 64 bit and 32 bit system. Code is relative to some crypt functions, similar, but not equal to: I have to move fr

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