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

Control structures in cpp, C o n t r o l S t r u c t u r e s ...

C o n t r o l S t r u c t u r e s I t i s o f t h r e e t y p e s: 1 .    S e qu e n c e s t r u c t u r e 2 .

There are ''''n'''' ants on a ''''n+1'''' leng n, There are ''''n'''' ants ...

There are ''''n'''' ants on a ''''n+1'''' length rod. The ants are numbered from 1 to n and are initially placed at positions starting from position 1 till position n. They are mov

Sizeof() operator, What is the specialty in sizeof() operator

What is the specialty in sizeof() operator

Largest clique, find largest clique present in graph

find largest clique present in graph

Described the scope resolution operator?, A: It allows a program to referen...

A: It allows a program to reference an identifier in global scope which has been hidden by another identifier along with the same name in the local scope.

Mat lab programming, MAT LAB programming Project Description: Just fo...

MAT LAB programming Project Description: Just for who are PROFESSIONAL IN MATLAB i have simulation and i would like to simulate the equation in ,and test the all simulatio

C program for merge two strings , v\:* {behavior:url(#default#VML);} o\:* ...

v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal 0

Finnishing C++ Project, i havea a small C++ i need help with. should not be...

i havea a small C++ i need help with. should not be anything special for an experienced programmer

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