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