88 lines
2.0 KiB
C++
88 lines
2.0 KiB
C++
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// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2015, Oracle and/or its affiliates.
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// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
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// Licensed under the Boost Software License version 1.0.
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// http://www.boost.org/users/license.html
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#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_SWEEP_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_SWEEP_HPP
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#include <boost/core/ignore_unused.hpp>
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namespace boost { namespace geometry
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{
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail { namespace sweep
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{
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struct no_interrupt_policy
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{
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static bool const enabled = false;
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template <typename Event>
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static inline bool apply(Event const&)
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{
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return false;
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}
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};
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}} // namespace detail::sweep
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#endif // DOXYGEN_NO_DETAIL
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template
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<
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typename Range,
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typename PriorityQueue,
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typename InitializationVisitor,
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typename EventVisitor,
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typename InterruptPolicy
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>
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inline void sweep(Range const& range, PriorityQueue& queue,
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InitializationVisitor& initialization_visitor,
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EventVisitor& event_visitor,
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InterruptPolicy const& interrupt_policy)
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{
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typedef typename PriorityQueue::value_type event_type;
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initialization_visitor.apply(range, queue, event_visitor);
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while (! queue.empty())
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{
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event_type event = queue.top();
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queue.pop();
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event_visitor.apply(event, queue);
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if (interrupt_policy.enabled && interrupt_policy.apply(event))
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{
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break;
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}
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}
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boost::ignore_unused(interrupt_policy);
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}
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template
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<
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typename Range,
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typename PriorityQueue,
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typename InitializationVisitor,
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typename EventVisitor
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>
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inline void sweep(Range const& range, PriorityQueue& queue,
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InitializationVisitor& initialization_visitor,
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EventVisitor& event_visitor)
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{
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sweep(range, queue, initialization_visitor, event_visitor,
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detail::sweep::no_interrupt_policy());
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}
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_SWEEP_HPP
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