Explain syntax rules for writing constructor functions, C/C++ Programming

Assignment Help:

Syntax rules for writing constructor functions

  • Its name must be similar as that of the class to which it belongs.
  • It is declared with no return type (not even void). However, it will implicitly return a temporary copy of the instance itself that is being formed.
  • It cannot be declared static (a function which does not belong to a particular example), cost( in which you cannot make changes).
  • It should have public or protected access within the class. Only in very rare circumstances the programmers declare it in private section.

e.g.

class  boxclass

                 {

                  public :

                boxclass ( int x1, int y1, int x2, int y2);

                void disp(void);

                  private :

                                                int x1, y1;

int x2, y2 ;

 

                 };

 

boxclass::boxclass(int ax1,int ay1, int ax2, int ay2)

                 {

                                x1 = ax1 ;

                                y1 = ay1 ;

                                x2 = ax2 ;

                                y2 = ay2 ;

       }

 


Related Discussions:- Explain syntax rules for writing constructor functions

Visual basic, a program to accept average, if average is 75 to 85 print it...

a program to accept average, if average is 75 to 85 print it out else bypass using counter. enter and process 5 records

Arithmetic operation, a program that declares and prompts the user to enter...

a program that declares and prompts the user to enter two integer and performs the five arithmetic operations

What is class definition, Class Definition The following is the general...

Class Definition The following is the general format of defining a class template: class tag_name                  {                    public  :               // Must

Create a program to word count, Create a program WordCount1Main.java doing ...

Create a program WordCount1Main.java doing the following:  For each word in the le word.txt { Create an object of the class Word { Add the object to a set of the type java.uti

Write a program that computes the cost of a long distance ca, Write a progr...

Write a program that computes the cost of a long distance call. The cost of the call is determined according to the following rate schedules. a. A call made between 8:00 AM and 6:

Define variable declaration in c++, Variable Declaration This declarati...

Variable Declaration This declaration of variables in the C language is permitted only in the starting of their block, prior to executable program statements. In C++ declaratio

Named what can derived class add?, New data members  New member function...

New data members  New member functions  New constructors and destructor  New friends

Super ansii prgm, Ask quIn the Byteland country a string "s" is said to sup...

Ask quIn the Byteland country a string "s" is said to super ascii string if and only if count of each charecter in the string is equal to its ascci value in the byteland country as

Write a program for coupon redemption, The video game machines at your loca...

The video game machines at your local arcade output coupons depending on how well you played the game, you can redeem 10 coupons for a candy bar, 6 coupons for .a medium soft drink

We want network-social app, We are seeking a talented developer/team with g...

We are seeking a talented developer/team with great experience in programming apps for both Android and iOS. Our project needs great skills and experience in making good functional

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