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

A palindrome is a string that reads the same from both the e, submitting so...

submitting solutions in C language should not use functions from / as these files do not exist in gcc

Sentence, Consider text comprised of sentences and sentences comprised of w...

Consider text comprised of sentences and sentences comprised of words. Words in a sentence will be space delimited. Given a text and K strings, task is to find out the number valid

Define the classification of operators in c language, Define the Classifica...

Define the Classification of Operators in C Language? Depending on the function performed the operator can be classified as 1. Arithmetic Operator 2. Logical Operator 3. Inc

Explain virtual functions, Virtual Functions The keyword virtual was pr...

Virtual Functions The keyword virtual was previously used to resolve ambiguity for a class derived from two classes, both having a common ancestor. These classes are known as v

Describe spaghetti programming, Describe spaghetti programming. - Spagh...

Describe spaghetti programming. - Spaghetti programming refers to codes which tend to get tangled and overlapped throughout the program. - It makes a program complex and ana

Make a list of functions that are standard in cpp, Make a list of functions...

Make a list of functions that are standard in C++. You must include each of the following for each function: Name of function Its parameters Data type it returns

Advanced input - output routines, Although we can handle most I/O routines ...

Although we can handle most I/O routines with getc and putc , there are file versions of fgets, fputs, fprintf and fscanf . The syntax is       fgets(stringname,n,filename);   Th

Explain the switch construct, The Switch Construct The switch statement...

The Switch Construct The switch statement is a multi-way decision-making construct that tests an expression matches one of a number of constant values, and branches accordingly

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