96 lines
2.5 KiB
C++
96 lines
2.5 KiB
C++
|
// Boost.Geometry Index
|
||
|
|
//
|
||
|
|
// Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
|
||
|
|
//
|
||
|
|
// This file was modified by Oracle on 2019-2021.
|
||
|
|
// Modifications copyright (c) 2019-2021 Oracle and/or its affiliates.
|
||
|
|
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
|
||
|
|
//
|
||
|
|
// Use, modification and distribution is subject to 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)
|
||
|
|
|
||
|
|
#ifndef BOOST_GEOMETRY_INDEX_DETAIL_TRANSLATOR_HPP
|
||
|
|
#define BOOST_GEOMETRY_INDEX_DETAIL_TRANSLATOR_HPP
|
||
|
|
|
||
|
|
#include <type_traits>
|
||
|
|
|
||
|
|
#include <boost/geometry/strategies/default_strategy.hpp>
|
||
|
|
|
||
|
|
namespace boost { namespace geometry { namespace index {
|
||
|
|
|
||
|
|
namespace detail {
|
||
|
|
|
||
|
|
template <typename Strategy>
|
||
|
|
struct translator_equals
|
||
|
|
{
|
||
|
|
template <typename EqualTo, typename Value>
|
||
|
|
static inline bool apply(EqualTo const& equal_to,
|
||
|
|
Value const& v1, Value const& v2,
|
||
|
|
Strategy const& strategy)
|
||
|
|
{
|
||
|
|
return equal_to(v1, v2, strategy);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template <>
|
||
|
|
struct translator_equals<default_strategy>
|
||
|
|
{
|
||
|
|
template <typename EqualTo, typename Value>
|
||
|
|
static inline bool apply(EqualTo const& equal_to,
|
||
|
|
Value const& v1, Value const& v2,
|
||
|
|
default_strategy const&)
|
||
|
|
{
|
||
|
|
return equal_to(v1, v2);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename IndexableGetter, typename EqualTo>
|
||
|
|
struct translator
|
||
|
|
: public IndexableGetter
|
||
|
|
, public EqualTo
|
||
|
|
{
|
||
|
|
typedef typename IndexableGetter::result_type result_type;
|
||
|
|
|
||
|
|
translator(IndexableGetter const& i, EqualTo const& e)
|
||
|
|
: IndexableGetter(i), EqualTo(e)
|
||
|
|
{}
|
||
|
|
|
||
|
|
template <typename Value>
|
||
|
|
result_type operator()(Value const& value) const
|
||
|
|
{
|
||
|
|
return IndexableGetter::operator()(value);
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename Value, typename Strategy>
|
||
|
|
bool equals(Value const& v1, Value const& v2, Strategy const& strategy) const
|
||
|
|
{
|
||
|
|
return translator_equals
|
||
|
|
<
|
||
|
|
Strategy
|
||
|
|
>::apply(static_cast<EqualTo const&>(*this), v1, v2, strategy);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename IndexableGetter>
|
||
|
|
struct result_type
|
||
|
|
{
|
||
|
|
typedef typename IndexableGetter::result_type type;
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename IndexableGetter>
|
||
|
|
struct indexable_type
|
||
|
|
{
|
||
|
|
typedef typename std::remove_const<
|
||
|
|
typename std::remove_reference<
|
||
|
|
typename result_type<IndexableGetter>::type
|
||
|
|
>::type
|
||
|
|
>::type type;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace detail
|
||
|
|
|
||
|
|
}}} // namespace boost::geometry::index
|
||
|
|
|
||
|
|
#endif // BOOST_GEOMETRY_INDEX_DETAIL_TRANSLATOR_HPP
|