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

Define difference among delete and delete[]?, when you allocate memory with...

when you allocate memory with new[], you ought to free the memory via delete[]. While you allocate memory along 'new', then use 'delete' with no the brackets. You employ new[] to a

Create a client program tracker, This project simulates an application call...

This project simulates an application called tracker for the Department of Transportation (DOT) in which highway traffic data is accumulated in real time using various sensing equi

Program to print a series, Write a program called Series that will print/di...

Write a program called Series that will print/display a series of numbers starting with 1 and ending with the last number that is less than 30. The series should include only odd n

#AREA UNDER CURVE, #question.Write a program to find the area under the cur...

#question.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 po

Solution, 3 . Write a ‘C’ program to accept any 3 digit integer numb...

3 . Write a ‘C’ program to accept any 3 digit integer number from the keyboard and display the word equivalent representation of the given number.

What happens while a derived-class object is developed, What happens while ...

What happens while a derived-class object is developed & destroyed? A: Space is allocated (on the heap or the stack) for the full object (i.e. adequate space to store the data m

Char, how many bytes required to char

how many bytes required to char

Explain the #define directive, The #define Directive The #define direct...

The #define Directive The #define directive explains a macro which is a text string represented by a name. Whenever the pre-processor finds this name in the program, it is repl

Vision based simultaneous mapping and localization, Project Description: ...

Project Description: Design and prepare software that can navigate a mobile robot using SLAM technique using vision sensor (camera). Skills required are C Programming, Engine

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