Answer / angad kumar

'# INCLUDE " "' IS THE PREPROCESSOR DIRECTIVES It creates a
link to the library stdio.h and <iostream.h >.

Answer / guna

This is the header file of the C program..Another name is
documentation session.

Answer / shahid

This is header file that can be use in c or c++ programming
language.

Answer / nayer plame

#include" ", as a preprocessor command, tries to a include
(simple text insertion) of a file named " "

if the blank between the two quotes is unintentional then
#include "" includes a file that is located in the same
directory as the file with the include command

if the single quotes around the include-command are
intentional, then is line would result in a syntax error

Answer / p.madhupriya

It is prerocessor

What is virtual function? Explain with an example

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Define virtual constructor.

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Why do we use iterators?

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Explain the pure virtual functions?

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What is a binary file? List the merits and demerits of the binary file usagein C++.

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how can i access a direct (absolute, not the offset) memory address? here is what i tried: wrote a program that ask's for an address from the user, creates a FAR pointer to that adress and shows it. then the user can increment/decrement the value in that address by pressing p(inc+) and m(dec-). NOW, i compiled that program and opened it twice (in 2 different windows) and gave twice the same address to it. now look what happen - if i change the value in one "window" of the program, it DOES NOT change in the other! even if they point to the same address in the memory! here is the code snippet: //------------------------------------------------------ #include <stdio.h> //INCLUDE EVERY KNOWN HEADER FILE #include <conio.h> //FOR ANY CASE... #include <iostream.h> #include <dos.h> #include <process.h> main() { int far *ptr; //FAR POINTER!!! long address; char key=0; //A KEY FROM THE KEYBOARD int temp=0; clrscr(); cout<<"Enter Address:"; cin>>hex>>address; //GETS THE ADDRESS clrscr(); (long)ptr=address; temp=*ptr; //PUTS THE ADDRESS IN THE PTR cout<<"["<<hex<<(unsigned long)ptr<<"]="<<*ptr<<" = "<< (char)(*ptr); //SHOWS: [address]=value=ASCII symbol. while (key!=27) //WHILE YOU DONT PRESS ESC. { while(!kbhit()) //WHILE KEY IS NOT PRESSED { if (temp!=*ptr) { temp=*ptr; clrscr(); cout<<"["<<hex<< (unsigned long)ptr<<"]="<<*ptr<<" = "<<(char)(*ptr); }; //IF THE VALUE HAS CHANGED, CLEAR THE SCREEN AND SHOW //AGAIN if (key=='p') {key=0; (*ptr)++; } //INCREMENT VALUE if (key=='m') {key=0; (*ptr)--; } //DEC. VALUE }; key=getch(); //IF A KEY IS PRESSED, READ IT FROM THE //KEYBOARD }; return 0; //IF ESC WAS THE KEY, EXIT THE PROGRAM } //---------------------------------------------------------

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What is the difference between multiple and multilevel inheritance in c++?

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what is static function

2 Answers   Patni,

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What is "mutable" keyword?

2 Answers   Infosys, Teradata,

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Why do we need function?

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Explain selection sorting?

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What is the difference between containment and delegation?

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