Chapter 16: The C Standard Template Library

width

#include <iostream>streamsize width() const;streamsize width(streamsize w);

The width( ) function is a member of ios (inherited from ios_base).

To obtain the current field width, use the first form of width( ). It returns the current field width. To set the field width, use the second form. Here, w becomes the field width, and the previous field width is returned.

Related functions are precision( ) and fill( ).