// Boost.Geometry Index
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//
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// Query range adaptor
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//
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// Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
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//
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// This file was modified by Oracle on 2020.
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// Modifications copyright (c) 2020 Oracle and/or its affiliates.
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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//
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_GEOMETRY_INDEX_ADAPTORS_QUERY_HPP
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#define BOOST_GEOMETRY_INDEX_ADAPTORS_QUERY_HPP
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#include <boost/geometry/core/static_assert.hpp>
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/*!
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\defgroup adaptors Adaptors (boost::geometry::index::adaptors::)
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*/
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namespace boost { namespace geometry { namespace index {
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namespace adaptors {
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namespace detail {
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template <typename Index>
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class query_range
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{
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BOOST_GEOMETRY_STATIC_ASSERT_FALSE(
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"Not implemented for this Index type.",
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Index);
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typedef int* iterator;
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typedef const int* const_iterator;
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template <typename Predicates>
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inline query_range(
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Index const&,
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Predicates const&)
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{}
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inline iterator begin() { return 0; }
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inline iterator end() { return 0; }
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inline const_iterator begin() const { return 0; }
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inline const_iterator end() const { return 0; }
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};
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// TODO: awulkiew - consider removing reference from predicates
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template<typename Predicates>
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struct query
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{
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inline explicit query(Predicates const& pred)
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: predicates(pred)
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{}
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Predicates const& predicates;
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};
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template<typename Index, typename Predicates>
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index::adaptors::detail::query_range<Index>
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operator|(
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Index const& si,
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index::adaptors::detail::query<Predicates> const& f)
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{
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return index::adaptors::detail::query_range<Index>(si, f.predicates);
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}
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} // namespace detail
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/*!
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\brief The query index adaptor generator.
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\ingroup adaptors
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\param pred Predicates.
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*/
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template <typename Predicates>
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detail::query<Predicates>
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queried(Predicates const& pred)
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{
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return detail::query<Predicates>(pred);
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}
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} // namespace adaptors
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}}} // namespace boost::geometry::index
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#endif // BOOST_GEOMETRY_INDEX_ADAPTORS_QUERY_HPP
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