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// Copyright (c) 2001 Daniel C. Nuffer
// Copyright (c) 2001-2011 Hartmut Kaiser
//
// 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_SPIRIT_ITERATOR_MULTI_PASS_MAR_16_2007_1122AM)
#define BOOST_SPIRIT_ITERATOR_MULTI_PASS_MAR_16_2007_1122AM
#include <boost/config.hpp>
#include <boost/spirit/home/support/iterators/multi_pass_fwd.hpp>
#include <boost/iterator.hpp>
#include <boost/mpl/bool.hpp>
#include <iterator>
#include <algorithm>
///////////////////////////////////////////////////////////////////////////////
namespace boost { namespace spirit { namespace detail
{
///////////////////////////////////////////////////////////////////////////
// Default implementations of the different policies to be used with a
// multi_pass iterator
///////////////////////////////////////////////////////////////////////////
struct default_input_policy
{
default_input_policy() {}
template <typename Functor>
default_input_policy(Functor const&) {}
template <typename MultiPass>
static void destroy(MultiPass&) {}
void swap(default_input_policy&) {}
template <typename MultiPass, typename TokenType>
static void advance_input(MultiPass& mp);
template <typename MultiPass>
static typename MultiPass::reference get_input(MultiPass& mp);
template <typename MultiPass>
static bool input_at_eof(MultiPass const& mp);
template <typename MultiPass, typename TokenType>
static bool input_is_valid(MultiPass& mp, TokenType& curtok);
};
struct default_ownership_policy
{
template <typename MultiPass>
static void destroy(MultiPass&) {}
void swap(default_ownership_policy&) {}
template <typename MultiPass>
static void clone(MultiPass&) {}
template <typename MultiPass>
static bool release(MultiPass& mp);
template <typename MultiPass>
static bool is_unique(MultiPass const& mp);
};
struct default_storage_policy
{
template <typename MultiPass>
static void destroy(MultiPass&) {}
void swap(default_storage_policy&) {}
template <typename MultiPass>
static typename MultiPass::reference dereference(MultiPass const& mp);
template <typename MultiPass>
static void increment(MultiPass&) {}
template <typename MultiPass>
static void clear_queue(MultiPass&) {}
template <typename MultiPass>
static bool is_eof(MultiPass const& mp);
template <typename MultiPass>
static bool equal_to(MultiPass const& mp, MultiPass const& x);
template <typename MultiPass>
static bool less_than(MultiPass const& mp, MultiPass const& x);
};
struct default_checking_policy
{
template <typename MultiPass>
static void destroy(MultiPass&) {}
void swap(default_checking_policy&) {}
template <typename MultiPass>
static void docheck(MultiPass const&) {}
template <typename MultiPass>
static void clear_queue(MultiPass&) {}
};
}}}
#endif
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