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- /*=============================================================================
- Copyright (c) 2007 Tobias Schwinger
- Copyright (c) 2001-2011 Hartmut Kaiser
- http://spirit.sourceforge.net/
- 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_FWD_APR_18_2008_1102AM)
- #define BOOST_SPIRIT_ITERATOR_MULTI_PASS_FWD_APR_18_2008_1102AM
- #include <cstddef>
- #include <boost/spirit/home/support/multi_pass_wrapper.hpp>
- #include <boost/swap.hpp>
- namespace boost { namespace spirit {
- namespace iterator_policies
- {
- // input policies
- struct input_iterator;
- struct buffering_input_iterator;
- struct istream;
- struct lex_input;
- struct functor_input;
- struct split_functor_input;
- // ownership policies
- struct ref_counted;
- struct first_owner;
- // checking policies
- class illegal_backtracking;
- struct buf_id_check;
- struct no_check;
- // storage policies
- struct split_std_deque;
- template<std::size_t N> struct fixed_size_queue;
- // policy combiner
- #if defined(BOOST_SPIRIT_DEBUG)
- template<typename Ownership = ref_counted
- , typename Checking = buf_id_check
- , typename Input = buffering_input_iterator
- , typename Storage = split_std_deque>
- struct default_policy;
- #else
- template<typename Ownership = ref_counted
- , typename Checking = no_check
- , typename Input = buffering_input_iterator
- , typename Storage = split_std_deque>
- struct default_policy;
- #endif
- }
- template <typename T
- , typename Policies = iterator_policies::default_policy<> >
- class multi_pass;
- template <typename T, typename Policies>
- void swap(multi_pass<T, Policies> &x, multi_pass<T, Policies> &y);
- }} // namespace boost::spirit
- namespace boost { namespace spirit { namespace traits
- {
- // declare special functions allowing to integrate any multi_pass iterator
- // with expectation points
- // multi_pass iterators require special handling (for the non-specialized
- // versions of these functions see support/multi_pass_wrapper.hpp)
- template <typename T, typename Policies>
- void clear_queue(multi_pass<T, Policies>&
- , BOOST_SCOPED_ENUM(clear_mode) mode = clear_mode::clear_if_enabled);
- template <typename T, typename Policies>
- void inhibit_clear_queue(multi_pass<T, Policies>&, bool);
- template <typename T, typename Policies>
- bool inhibit_clear_queue(multi_pass<T, Policies>&);
- // Helper template to recognize a multi_pass iterator. This specialization
- // will be instantiated for any multi_pass iterator.
- template <typename T, typename Policies>
- struct is_multi_pass<multi_pass<T, Policies> > : mpl::true_ {};
- }}}
- #endif
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