MANIPULATOR FUNCTIONS - SETW() AND SETFILL()

C++ Program  to describe the working of setw() and setfill() functions.

#include<iostream.h>

#include<conio.h>

#include<iomanip.h>

void main()

{

  clrscr();

  cout<<setw(5)<<5<<endl;

  cout<<setfill('0')<<setw(5)<<5<<endl;

  cout<<setw(5)<<setfill('0')<<5<<endl;

  cout<<setfill('0')<<setw(5)<<55<<endl;

  cout<<setfill('0')<<setw(5)<<555<<endl;

  getch();

}

output 

 

setw(length); - sets the width of the field assigned for the output.
setfill(char); - used to fill spaces when results have to be padded to the field width
Both functions are defined in the header iomanip.