IOStream Class Functions:

IOS Class	Functions
Function	Meaning
int ios::width()	Returns the current width
int ios::width(n)	Sets the width and Returns the current width
int ios::fill()	Returns the current fill character
int ios::fill(n)	Sets the fill character and Returns the current fill character
int ios::precision()	Returns the current floating point precision
int ios::precision(n)	Sets the floating point precision and Returns the current floating point precesion

Example:

main()

{

     char x[]=“hello”;

cout.fill(‘*’);

cout.width(10);

cout<<x;   // prints “*****hello”

float f=3.456;

cout.precesion(2);      

cout<<f;    // prints 3.46

}