Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

What is a pure virtual function?
Why is it represented as = 0...how is the internal
implementation for the same

Answer Posted / helloworld

I believe pure virtual function is a member function with a
declaration as NULL;
virtual void fun()=0;
Now why zero,since the internal implementation of virtual
function is collection of function pointer ...we intialize
this value of function pointers as NULL.

Is This Answer Correct ?    3 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Write about the various sections of the executable image?

982


How is c++ used in the real world?

1043


Why use of template is better than a base class?

1189


Does c++ have arraylist?

1028


I want to write a C++ language program that: 1. Reads in the size of a square from the screen; 2. Prints a hollow square of that size out of “-“, “|” and blanks on screen; 3. Prints the same hollow square onto a text file. The program should work for squares of all side sizes between 1 and 20.

2797


What is DlgProc?

1031


How do I write a c++ program?

1119


How many types of comments are there in c++?

989


What is the advantage of c++ over c?

1032


Should a constructor be public or private?

1037


write a program that reads in a file and counts the number of lines, words, and characters. Your program should ask the user to input a filename. Open the file and report an error if the file does not exist or cannot be opened for some other reason. Then read in the contents of the file and count the number of lines, words, and characters in the file. Also print additional information about the file, such as the longest and shortest words, and longest and shortest lines. For simplicity, we define a word to be one or more characters ending with white space (a space, tab, carriage return, etc.). Functions for checking the types of characters can be found in the ctype.h header file, so you want to include this header file in your program. For example, the sentence below could be all that is in a file. This sentence IT 104 is taught in C++. has 32 characters, one line, and six words. The shortest line is 32 characters. The longest line is 32 characters. The shortest word is 2 characters. The longest word is 6 characters

5328


What is the difference between a reference and a pointer?

1121


Is c++ faster than c?

1027


What is the difference between public, private, and protected access?

1071


What is lambda in c++?

1239