cgal/Stream_support/include/CGAL/IO/Ostream_iterator.h

66 lines
2.2 KiB
C++

// Copyright (c) 1997 Utrecht University (The Netherlands),
// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
// and Tel-Aviv University (Israel). All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; version 2.1 of the License.
// See the file LICENSE.LGPL distributed with CGAL.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
//
// Author(s) : Lutz Kettner <kettner@inf.ethz.ch>
#ifndef CGAL_IO_OSTREAM_ITERATOR_H
#define CGAL_IO_OSTREAM_ITERATOR_H
#include <CGAL/circulator.h>
CGAL_BEGIN_NAMESPACE
// This proxy is for the Ostream_iterator.
template <class T, class Stream>
class Ostream_proxy {
Stream& stream;
public:
Ostream_proxy( Stream& s) : stream(s) {}
Ostream_proxy<T,Stream>& operator=( const T& t) {
stream << t;
return *this;
}
};
template <class T, class Stream>
class Ostream_iterator {
Stream& stream;
public:
typedef T value_type;
typedef T& reference;
typedef const T& const_reference;
typedef T* pointer;
typedef const T* const_pointer;
typedef std::ptrdiff_t difference_type;
typedef std::output_iterator_tag iterator_category;
Ostream_iterator( Stream& s) : stream(s) {}
Ostream_iterator<T,Stream>& operator++() { return *this;}
Ostream_iterator<T,Stream> operator++(int) { return *this;}
Ostream_proxy<T,Stream> operator*() const {
return Ostream_proxy<T,Stream>(stream);
}
};
CGAL_END_NAMESPACE
#endif // CGAL_IO_OSTREAM_ITERATOR_H