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

Area under the curve, Write a program to find the area under the curve y = ...

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

Area, find area uder the curve y=f(x) between x=a and x=b   #incl...

find area uder the curve y=f(x) between x=a and x=b   #include float start_point, /* GLOBAL VARIABLES */ end_point, total_area; in

Genetic disease, Many human diseases could be controlled by the knowledge o...

Many human diseases could be controlled by the knowledge of the gene’s structure and pattern. The human gene could be represented by four nucleotides. Each nucleotide is represente

Microprocessors and motherboards, The heart of the modern electronic system...

The heart of the modern electronic system is the microprocessor e.g. the video, sound, game consoles, portable phones and domestic appliances. Let us consider the heart of a home c

Wap in c to find determinant of matrix order 3x3 , Normal 0 fal...

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

C program for diviser, C Program for DIVISER   void main() {  ...

C Program for DIVISER   void main() {           int result,number,min;           clrscr();           printf("ENTER THE NUMBER=");           flushall();

Decode the code, By pressing ‘6’ (i.e. key’6’ one time) on the keypad, the ...

By pressing ‘6’ (i.e. key’6’ one time) on the keypad, the mobile shows ‘m’ on display screen in write text message area

Decision control instruction, if age of ram,shayam and ajay are input throu...

if age of ram,shayam and ajay are input through keyboard,write a program to determine the youngest of the three.

Program, Byteland county is very famous for luminous jewels. Luminous jewel...

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

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