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1 | // Boost.Geometry Index |
2 | // | |
3 | // Throwing objects implementation | |
4 | // | |
5 | // Copyright (c) 2011-2014 Adam Wulkiewicz, Lodz, Poland. | |
6 | // | |
7 | // Use, modification and distribution is subject to the Boost Software License, | |
8 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
9 | // http://www.boost.org/LICENSE_1_0.txt) | |
10 | ||
11 | #ifndef BOOST_GEOMETRY_INDEX_TEST_THROWING_HPP | |
12 | #define BOOST_GEOMETRY_INDEX_TEST_THROWING_HPP | |
13 | ||
14 | // value | |
15 | ||
16 | struct throwing_value_copy_exception : public std::exception | |
17 | { | |
18 | const char * what() const throw() { return "value copy failed."; } | |
19 | }; | |
20 | ||
21 | struct throwing_value | |
22 | { | |
23 | explicit throwing_value(int v = 0) | |
24 | : value(v) | |
25 | {} | |
26 | ||
27 | bool operator==(throwing_value const& v) const | |
28 | { | |
29 | return value == v.value; | |
30 | } | |
31 | ||
32 | throwing_value(throwing_value const& v) | |
33 | { | |
34 | throw_if_required(); | |
35 | ||
36 | value = v.value; | |
37 | } | |
38 | ||
39 | throwing_value & operator=(throwing_value const& v) | |
40 | { | |
41 | throw_if_required(); | |
42 | ||
43 | value = v.value; | |
44 | return *this; | |
45 | } | |
46 | ||
47 | void throw_if_required() | |
48 | { | |
49 | // throw if counter meets max count | |
50 | if ( get_max_calls_ref() <= get_calls_counter_ref() ) | |
51 | throw throwing_value_copy_exception(); | |
52 | else | |
53 | ++get_calls_counter_ref(); | |
54 | } | |
55 | ||
56 | static void reset_calls_counter() { get_calls_counter_ref() = 0; } | |
57 | static void set_max_calls(size_t mc) { get_max_calls_ref() = mc; } | |
58 | ||
59 | static size_t & get_calls_counter_ref() { static size_t cc = 0; return cc; } | |
60 | static size_t & get_max_calls_ref() { static size_t mc = (std::numeric_limits<size_t>::max)(); return mc; } | |
61 | ||
62 | int value; | |
63 | }; | |
64 | ||
65 | namespace generate { | |
66 | template <typename T, typename C> | |
67 | struct value< std::pair<bg::model::point<T, 2, C>, throwing_value> > | |
68 | { | |
69 | typedef bg::model::point<T, 2, C> P; | |
70 | typedef std::pair<P, throwing_value> R; | |
71 | static R apply(int x, int y) | |
72 | { | |
73 | return std::make_pair(P(x, y), throwing_value(x + y * 100)); | |
74 | } | |
75 | }; | |
76 | } // namespace generate | |
77 | ||
78 | #include <boost/geometry/index/detail/varray.hpp> | |
79 | ||
80 | struct throwing_varray_exception : public std::exception | |
81 | { | |
82 | const char * what() const throw() { return "static vector exception."; } | |
83 | }; | |
84 | ||
85 | struct throwing_varray_settings | |
86 | { | |
87 | static void throw_if_required() | |
88 | { | |
89 | // throw if counter meets max count | |
90 | if ( get_max_calls_ref() <= get_calls_counter_ref() ) | |
91 | throw throwing_varray_exception(); | |
92 | else | |
93 | ++get_calls_counter_ref(); | |
94 | } | |
95 | ||
96 | static void reset_calls_counter() { get_calls_counter_ref() = 0; } | |
97 | static void set_max_calls(size_t mc) { get_max_calls_ref() = mc; } | |
98 | ||
99 | static size_t & get_calls_counter_ref() { static size_t cc = 0; return cc; } | |
100 | static size_t & get_max_calls_ref() { static size_t mc = (std::numeric_limits<size_t>::max)(); return mc; } | |
101 | }; | |
102 | ||
103 | template <typename Element, size_t Capacity> | |
104 | class throwing_varray | |
105 | : public boost::geometry::index::detail::varray<Element, Capacity> | |
106 | { | |
107 | typedef boost::geometry::index::detail::varray<Element, Capacity> container; | |
108 | ||
109 | public: | |
110 | typedef typename container::value_type value_type; | |
111 | typedef typename container::size_type size_type; | |
112 | typedef typename container::iterator iterator; | |
113 | typedef typename container::const_iterator const_iterator; | |
114 | typedef typename container::reverse_iterator reverse_iterator; | |
115 | typedef typename container::const_reverse_iterator const_reverse_iterator; | |
116 | typedef typename container::reference reference; | |
117 | typedef typename container::const_reference const_reference; | |
118 | ||
119 | inline throwing_varray() {} | |
120 | ||
121 | template <typename It> | |
122 | inline throwing_varray(It first, It last) | |
123 | : container(first, last) | |
124 | {} | |
125 | ||
92f5a8d4 TL |
126 | inline throwing_varray(size_type s) |
127 | { | |
128 | throwing_varray_settings::throw_if_required(); | |
129 | container::resize(s); | |
130 | } | |
131 | ||
7c673cae FG |
132 | inline void resize(size_type s) |
133 | { | |
134 | throwing_varray_settings::throw_if_required(); | |
135 | container::resize(s); | |
136 | } | |
137 | ||
138 | inline void reserve(size_type s) | |
139 | { | |
140 | throwing_varray_settings::throw_if_required(); | |
141 | container::reserve(s); | |
142 | } | |
143 | ||
144 | void push_back(Element const& v) | |
145 | { | |
146 | throwing_varray_settings::throw_if_required(); | |
147 | container::push_back(v); | |
148 | } | |
149 | }; | |
150 | ||
151 | // elements derived type trait | |
152 | ||
153 | namespace boost { namespace geometry { namespace index { | |
154 | ||
155 | namespace detail { namespace rtree { | |
156 | ||
157 | template <typename OldValue, size_t N, typename NewValue> | |
158 | struct container_from_elements_type<throwing_varray<OldValue, N>, NewValue> | |
159 | { | |
160 | typedef throwing_varray<NewValue, N> type; | |
161 | }; | |
162 | ||
163 | }} // namespace detail::rtree | |
164 | ||
165 | }}} // namespace boost::geometry::index | |
166 | ||
167 | #endif // BOOST_GEOMETRY_INDEX_TEST_THROWING_HPP |