1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
// 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
|
