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1 | // Copyright 2015-2017 Hans Dembinski |
2 | // | |
3 | // Distributed under the Boost Software License, Version 1.0. | |
4 | // (See accompanying file LICENSE_1_0.txt | |
5 | // or copy at http://www.boost.org/LICENSE_1_0.txt) | |
6 | ||
7 | #include <array> | |
8 | #include <boost/core/lightweight_test.hpp> | |
9 | #include <boost/core/lightweight_test_trait.hpp> | |
10 | #include <boost/histogram/axis/integer.hpp> | |
11 | #include <boost/histogram/axis/regular.hpp> | |
12 | #include <boost/histogram/axis/variable.hpp> | |
13 | #include <boost/histogram/axis/variant.hpp> | |
14 | #include <boost/histogram/detail/detect.hpp> | |
15 | #include <boost/histogram/unlimited_storage.hpp> | |
16 | #include <deque> | |
17 | #include <initializer_list> | |
18 | #include <map> | |
19 | #include <string> | |
20 | #include <type_traits> | |
21 | #include <unordered_map> | |
22 | #include <utility> | |
23 | #include <vector> | |
24 | #include "std_ostream.hpp" | |
25 | #include "throw_exception.hpp" | |
26 | #include "utility_allocator.hpp" | |
27 | ||
28 | using namespace boost::histogram; | |
29 | using namespace boost::histogram::detail; | |
30 | ||
31 | int main() { | |
32 | // has_method_value* | |
33 | { | |
34 | struct A {}; | |
35 | struct B { | |
36 | A value(int) const { return {}; } | |
37 | }; | |
38 | struct C { | |
39 | char value(int) const { return 0; } | |
40 | }; | |
41 | ||
42 | BOOST_TEST_TRAIT_FALSE((has_method_value<A>)); | |
43 | BOOST_TEST_TRAIT_TRUE((has_method_value<B>)); | |
44 | BOOST_TEST_TRAIT_TRUE((has_method_value<C>)); | |
45 | } | |
46 | ||
47 | // has_method_options | |
48 | { | |
49 | struct A {}; | |
50 | struct B { | |
51 | void options() {} | |
52 | }; | |
53 | ||
54 | BOOST_TEST_TRAIT_FALSE((has_method_options<A>)); | |
55 | BOOST_TEST_TRAIT_TRUE((has_method_options<B>)); | |
56 | } | |
57 | ||
58 | // has_method_metadata | |
59 | { | |
60 | struct A {}; | |
61 | struct B { | |
62 | void metadata(); | |
63 | }; | |
64 | ||
65 | BOOST_TEST_TRAIT_FALSE((has_method_metadata<A>)); | |
66 | BOOST_TEST_TRAIT_TRUE((has_method_metadata<B>)); | |
67 | } | |
68 | ||
69 | // has_method_update | |
70 | { | |
71 | struct A {}; | |
72 | struct B { | |
73 | void update(int) {} | |
74 | }; | |
75 | using C = axis::integer<int, axis::null_type, use_default>; | |
76 | ||
77 | BOOST_TEST_TRAIT_FALSE((has_method_update<A>)); | |
78 | BOOST_TEST_TRAIT_TRUE((has_method_update<B>)); | |
79 | BOOST_TEST_TRAIT_TRUE((has_method_update<C>)); | |
80 | } | |
81 | ||
82 | // has_method_resize | |
83 | { | |
84 | struct A {}; | |
85 | using B = std::vector<int>; | |
86 | using C = std::map<int, int>; | |
87 | ||
88 | BOOST_TEST_TRAIT_FALSE((has_method_resize<A>)); | |
89 | BOOST_TEST_TRAIT_TRUE((has_method_resize<B>)); | |
90 | BOOST_TEST_TRAIT_FALSE((has_method_resize<C>)); | |
91 | } | |
92 | ||
93 | // has_method_size | |
94 | { | |
95 | struct A {}; | |
96 | using B = std::vector<int>; | |
97 | using C = std::map<int, int>; | |
98 | ||
99 | BOOST_TEST_TRAIT_FALSE((has_method_size<A>)); | |
100 | BOOST_TEST_TRAIT_TRUE((has_method_size<B>)); | |
101 | BOOST_TEST_TRAIT_TRUE((has_method_size<C>)); | |
102 | } | |
103 | ||
104 | // has_method_clear | |
105 | { | |
106 | struct A {}; | |
107 | using B = std::vector<int>; | |
108 | using C = std::map<int, int>; | |
109 | using D = std::array<int, 10>; | |
110 | ||
111 | BOOST_TEST_TRAIT_FALSE((has_method_clear<A>)); | |
112 | BOOST_TEST_TRAIT_TRUE((has_method_clear<B>)); | |
113 | BOOST_TEST_TRAIT_TRUE((has_method_clear<C>)); | |
114 | BOOST_TEST_TRAIT_FALSE((has_method_clear<D>)); | |
115 | } | |
116 | ||
117 | // has_allocator | |
118 | { | |
119 | struct A {}; | |
120 | using B = std::vector<int>; | |
121 | using C = std::map<int, int>; | |
122 | using D = std::array<int, 10>; | |
123 | ||
124 | BOOST_TEST_TRAIT_FALSE((has_method_clear<A>)); | |
125 | BOOST_TEST_TRAIT_TRUE((has_method_clear<B>)); | |
126 | BOOST_TEST_TRAIT_TRUE((has_method_clear<C>)); | |
127 | BOOST_TEST_TRAIT_FALSE((has_method_clear<D>)); | |
128 | } | |
129 | ||
130 | // is_storage | |
131 | { | |
132 | struct A {}; | |
133 | using B = std::vector<int>; | |
134 | using C = unlimited_storage<>; | |
135 | ||
136 | BOOST_TEST_TRAIT_FALSE((is_storage<A>)); | |
137 | BOOST_TEST_TRAIT_FALSE((is_storage<B>)); | |
138 | BOOST_TEST_TRAIT_TRUE((is_storage<C>)); | |
139 | } | |
140 | ||
141 | // is_indexable | |
142 | { | |
143 | struct A {}; | |
144 | using B = std::vector<int>; | |
145 | using C = std::map<int, int>; | |
146 | using D = std::map<A, int>; | |
147 | ||
148 | BOOST_TEST_TRAIT_FALSE((is_indexable<A>)); | |
149 | BOOST_TEST_TRAIT_TRUE((is_indexable<B>)); | |
150 | BOOST_TEST_TRAIT_TRUE((is_indexable<C>)); | |
151 | BOOST_TEST_TRAIT_FALSE((is_indexable<D>)); | |
152 | } | |
153 | ||
154 | // is_transform | |
155 | { | |
156 | struct A {}; | |
157 | struct B { | |
158 | double forward(A); | |
159 | A inverse(double); | |
160 | }; | |
161 | ||
162 | BOOST_TEST_TRAIT_FALSE((is_transform<A, double>)); | |
163 | BOOST_TEST_TRAIT_TRUE((is_transform<B, A>)); | |
164 | BOOST_TEST_TRAIT_TRUE((is_transform<axis::transform::id, double>)); | |
165 | } | |
166 | ||
167 | // is_vector_like | |
168 | { | |
169 | struct A {}; | |
170 | using B = std::vector<int>; | |
171 | using C = std::array<int, 10>; | |
172 | using D = std::map<unsigned, int>; | |
173 | using E = std::deque<int>; | |
174 | BOOST_TEST_TRAIT_FALSE((is_vector_like<A>)); | |
175 | BOOST_TEST_TRAIT_TRUE((is_vector_like<B>)); | |
176 | BOOST_TEST_TRAIT_FALSE((is_vector_like<C>)); | |
177 | BOOST_TEST_TRAIT_FALSE((is_vector_like<D>)); | |
178 | BOOST_TEST_TRAIT_TRUE((is_vector_like<E>)); | |
179 | } | |
180 | ||
181 | // is_array_like | |
182 | { | |
183 | struct A {}; | |
184 | using B = std::vector<int>; | |
185 | using C = std::array<int, 10>; | |
186 | using D = std::map<unsigned, int>; | |
187 | BOOST_TEST_TRAIT_FALSE((is_array_like<A>)); | |
188 | BOOST_TEST_TRAIT_FALSE((is_array_like<B>)); | |
189 | BOOST_TEST_TRAIT_TRUE((is_array_like<C>)); | |
190 | BOOST_TEST_TRAIT_FALSE((is_array_like<D>)); | |
191 | } | |
192 | ||
193 | // is_map_like | |
194 | { | |
195 | struct A {}; | |
196 | using B = std::vector<int>; | |
197 | using C = std::array<int, 10>; | |
198 | using D = std::map<unsigned, int>; | |
199 | using E = std::unordered_map<unsigned, int>; | |
200 | BOOST_TEST_TRAIT_FALSE((is_map_like<A>)); | |
201 | BOOST_TEST_TRAIT_FALSE((is_map_like<B>)); | |
202 | BOOST_TEST_TRAIT_FALSE((is_map_like<C>)); | |
203 | BOOST_TEST_TRAIT_TRUE((is_map_like<D>)); | |
204 | BOOST_TEST_TRAIT_TRUE((is_map_like<E>)); | |
205 | } | |
206 | ||
207 | // is_axis | |
208 | { | |
209 | struct A {}; | |
210 | struct B { | |
211 | int index(double); | |
212 | int size() const; | |
213 | }; | |
214 | struct C { | |
215 | int index(double); | |
216 | }; | |
217 | struct D { | |
218 | int size(); | |
219 | }; | |
220 | using E = axis::variant<axis::regular<>>; | |
221 | ||
222 | BOOST_TEST_TRAIT_FALSE((is_axis<A>)); | |
223 | BOOST_TEST_TRAIT_TRUE((is_axis<B>)); | |
224 | BOOST_TEST_TRAIT_FALSE((is_axis<C>)); | |
225 | BOOST_TEST_TRAIT_FALSE((is_axis<D>)); | |
226 | BOOST_TEST_TRAIT_FALSE((is_axis<E>)); | |
227 | } | |
228 | ||
229 | // is_iterable | |
230 | { | |
231 | using A = std::vector<int>; | |
232 | using B = int[3]; | |
233 | using C = std::initializer_list<int>; | |
234 | BOOST_TEST_TRAIT_FALSE((is_iterable<int>)); | |
235 | BOOST_TEST_TRAIT_TRUE((is_iterable<A>)); | |
236 | BOOST_TEST_TRAIT_TRUE((is_iterable<B>)); | |
237 | BOOST_TEST_TRAIT_TRUE((is_iterable<C>)); | |
238 | } | |
239 | ||
240 | // is_streamable | |
241 | { | |
242 | struct Foo {}; | |
243 | BOOST_TEST_TRAIT_TRUE((is_streamable<int>)); | |
244 | BOOST_TEST_TRAIT_TRUE((is_streamable<std::string>)); | |
245 | BOOST_TEST_TRAIT_FALSE((is_streamable<Foo>)); | |
246 | } | |
247 | ||
248 | // is_axis_variant | |
249 | { | |
250 | struct A {}; | |
251 | BOOST_TEST_TRAIT_FALSE((is_axis_variant<A>)); | |
252 | BOOST_TEST_TRAIT_TRUE((is_axis_variant<axis::variant<>>)); | |
253 | BOOST_TEST_TRAIT_TRUE((is_axis_variant<axis::variant<axis::regular<>>>)); | |
254 | } | |
255 | ||
256 | // is_sequence_of_axis | |
257 | { | |
258 | using A = std::vector<axis::regular<>>; | |
259 | using B = std::vector<axis::variant<axis::regular<>>>; | |
260 | using C = std::vector<int>; | |
261 | auto v = std::vector<axis::variant<axis::regular<>, axis::integer<>>>(); | |
262 | BOOST_TEST_TRAIT_TRUE((is_sequence_of_any_axis<A>)); | |
263 | BOOST_TEST_TRAIT_TRUE((is_sequence_of_axis<A>)); | |
264 | BOOST_TEST_TRAIT_FALSE((is_sequence_of_axis_variant<A>)); | |
265 | BOOST_TEST_TRAIT_TRUE((is_sequence_of_any_axis<B>)); | |
266 | BOOST_TEST_TRAIT_TRUE((is_sequence_of_axis_variant<B>)); | |
267 | BOOST_TEST_TRAIT_FALSE((is_sequence_of_axis<B>)); | |
268 | BOOST_TEST_TRAIT_FALSE((is_sequence_of_any_axis<C>)); | |
269 | BOOST_TEST_TRAIT_TRUE((is_sequence_of_any_axis<decltype(v)>)); | |
270 | } | |
271 | ||
272 | // has_operator_equal | |
273 | { | |
274 | struct A {}; | |
275 | struct B { | |
276 | bool operator==(const B&) const { return true; } | |
277 | }; | |
278 | ||
279 | BOOST_TEST_TRAIT_FALSE((has_operator_equal<A, A>)); | |
280 | BOOST_TEST_TRAIT_FALSE((has_operator_equal<B, A>)); | |
281 | BOOST_TEST_TRAIT_TRUE((has_operator_equal<B, B>)); | |
282 | BOOST_TEST_TRAIT_TRUE((has_operator_equal<const B&, const B&>)); | |
283 | } | |
284 | ||
285 | // has_operator_radd | |
286 | { | |
287 | struct A {}; | |
288 | struct B { | |
289 | B& operator+=(const B&) { return *this; } | |
290 | }; | |
291 | ||
292 | BOOST_TEST_TRAIT_FALSE((has_operator_radd<A, A>)); | |
293 | BOOST_TEST_TRAIT_FALSE((has_operator_radd<B, A>)); | |
294 | BOOST_TEST_TRAIT_TRUE((has_operator_radd<B, B>)); | |
295 | BOOST_TEST_TRAIT_TRUE((has_operator_radd<B&, const B&>)); | |
296 | } | |
297 | ||
298 | return boost::report_errors(); | |
299 | } |