< cpp‎ | io‎ | manip
Defined in header <iomanip>
template< class CharT >
/*unspecified*/ setfill( CharT c );

When used in an expression out << setfill(c) sets the fill character of the stream out to c.


[edit] Parameters

c - new value for the fill character

[edit] Return value

Returns an object of unspecified type such that if out is the name of an output stream of type std::basic_ostream<CharT, Traits>, then the expression out << setfill(n) behaves as if the following code was executed:


[edit] Notes

The current fill character may be obtained with std::ostream::fill

[edit] Example

#include <iostream>
#include <iomanip>
int main()
    std::cout << "default fill: " << std::setw(10) << 42 << '\n'
              << "setfill('*'): " << std::setfill('*')
                                  << std::setw(10) << 42 << '\n';


default fill:         42
setfill('*'): ********42

[edit] See also

manages the fill character
(public member function of std::basic_ios)
sets the placement of fill characters
changes the width of the next input/output field