unordered/test/helpers/input_iterator.hpp

// Copyright 2005-2006 Daniel James.
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#if !defined(BOOST_UNORDERED_TEST_HELPERS_INPUT_ITERATOR_HEADER)
#define BOOST_UNORDERED_TEST_HELPERS_INPUT_ITERATOR_HEADER

#include <boost/iterator_adaptors.hpp>
#include <boost/shared_ptr.hpp>

namespace test
{
    template <class Iterator>
    struct input_iterator_adaptor
        : boost::iterator_adaptor<
            input_iterator_adaptor<Iterator>, Iterator,
            boost::use_default, std::input_iterator_tag>
    {
        typedef boost::iterator_adaptor<
            input_iterator_adaptor<Iterator>, Iterator,
            boost::use_default, std::input_iterator_tag> base;

        explicit input_iterator_adaptor(Iterator it = Iterator())
            : base(it) {}
    };

    template <class Iterator>
    input_iterator_adaptor<Iterator> input_iterator(Iterator it)
    {
        return input_iterator_adaptor<Iterator>(it);
    }
}

#endif