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/*
** PJL C++ Library
** omanip.h
**
** Copyright (C) 2001 Paul J. Lucas
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef omanip_H
#define omanip_H
// standard
#include <iostream>
namespace PJL {
//*****************************************************************************
//
// SYNOPSIS
//
template< class Arg > class omanip
//
// DESCRIPTION
//
// An omanip is a class for assisting in the creating of ostream
// manipulators by storing a pointer to a function and its argument to be
// called later via operator<<().
//
// SEE ALSO
//
// Angelika Langer and Klaus Kreft. "Standard C++ IOStreams and Locales."
// Addison-Wesley, Reading, MA., pp. 179-191.
//
//*****************************************************************************
{
public:
typedef std::ostream& (*func_type)( std::ostream&, Arg );
omanip( func_type f, Arg const &arg ) : f_( f ), arg_( arg ) { }
friend std::ostream& operator<<( std::ostream &o, omanip<Arg> const &om ) {
return (*om.f_)( o, om.arg_ );
}
private:
func_type const f_;
Arg const arg_;
};
} // namespace PJL
#endif /* omanip_H */
/* vim:set et sw=4 ts=4: */
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