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

#podavan string, ##question.A Padovan string P(n) for a natural number n is...

##question.A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string co   program in jav

Write a c program to input a floating point number, Step 1 Define the start...

Step 1 Define the start of the program    It should be noted that within C all commands should end in a semi-colon. For most of your programs the definition of a program header as

Define static storage class - computer programming, Define Static Storage C...

Define Static Storage Class in C Programming? The Static declarations have distinct and important uses. This allows the local variable to keep its previous value when the block

Introduction to C language, Design and implement a library system that does...

Design and implement a library system that does the following: ? Takes details of a student/library users: first name, last name, other names, user ID number, and nationality. Th

C help, Need help with C network program

Need help with C network program

Java code, Calculate the salary if the person work 8 hours/day and the sala...

Calculate the salary if the person work 8 hours/day and the salary/hour is RM5.20 - UML class diagaram -Class -Exception handling/assertion

Luminous Jewels, Jewels can only be removed for polishing from either end o...

Jewels can only be removed for polishing from either end of the necklace

Stone game, A game is played with three piles of stones and two players. At...

A game is played with three piles of stones and two players. At her turn, a player removes one or more stones from the piles. However, if she takes stones from more than one pile,

Described multiple inheritance(virtual inheritance)?, Described multiple in...

Described multiple inheritance(virtual inheritance)? And explain its advantages and disadvantages? A: It is the procedure in which a child can be derived from more than one pare

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