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+/*=============================================================================
+ Copyright (c) 2001-2011 Hartmut Kaiser
+ Copyright (c) 2001-2011 Joel de Guzman
+
+ 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_ANY_IF_NS_SO_DECEMBER_03_2017_0826PM)
+#define BOOST_SPIRIT_ANY_IF_NS_SO_DECEMBER_03_2017_0826PM
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/spirit/home/support/algorithm/any_ns_so.hpp>
+
+namespace boost { namespace spirit
+{
+ ///////////////////////////////////////////////////////////////////////////
+ // This is a special version for a binary fusion::any. The predicate
+ // is used to decide whether to advance the second iterator or not.
+ // This is needed for sequences containing components with unused
+ // attributes. The second iterator is advanced only if the attribute
+ // of the corresponding component iterator is not unused.
+ //
+ // This is a non-short circuiting (ns) strict order (so) version of the
+ // any_if algorithm.
+ ///////////////////////////////////////////////////////////////////////////
+ namespace detail
+ {
+ template <
+ typename Pred, typename First1, typename Last1, typename First2
+ , typename Last2, typename F
+ >
+ inline bool
+ any_if_ns_so(First1 const&, First2 const&, Last1 const&, Last2 const&
+ , F const&, mpl::true_)
+ {
+ return false;
+ }
+
+ template <
+ typename Pred, typename First1, typename Last1, typename First2
+ , typename Last2, typename F
+ >
+ inline bool
+ any_if_ns_so(First1 const& first1, First2 const& first2
+ , Last1 const& last1, Last2 const& last2, F& f, mpl::false_)
+ {
+ bool head = f(*first1, spirit::detail::attribute_value<Pred, First1, Last2>(first2));
+ bool tail =
+ detail::any_if_ns_so<Pred>(
+ fusion::next(first1)
+ , attribute_next<Pred, First1, Last2>(first2)
+ , last1, last2
+ , f
+ , fusion::result_of::equal_to<
+ typename fusion::result_of::next<First1>::type, Last1>());
+ return head || tail;
+ }
+ }
+
+ template <typename Pred, typename Sequence1, typename Sequence2, typename F>
+ inline bool
+ any_if_ns_so(Sequence1 const& seq1, Sequence2& seq2, F f, Pred)
+ {
+ return detail::any_if_ns_so<Pred>(
+ fusion::begin(seq1), fusion::begin(seq2)
+ , fusion::end(seq1), fusion::end(seq2)
+ , f
+ , fusion::result_of::equal_to<
+ typename fusion::result_of::begin<Sequence1>::type
+ , typename fusion::result_of::end<Sequence1>::type>());
+ }
+
+ template <typename Pred, typename Sequence, typename F>
+ inline bool
+ any_if_ns_so(Sequence const& seq, unused_type const, F f, Pred)
+ {
+ return detail::any_ns_so(
+ fusion::begin(seq)
+ , fusion::end(seq)
+ , f
+ , fusion::result_of::equal_to<
+ typename fusion::result_of::begin<Sequence>::type
+ , typename fusion::result_of::end<Sequence>::type>());
+ }
+
+}}
+
+#endif
+