1 | // boost::compressed_pair test program |
2 | |
3 | // (C) Copyright John Maddock 2000. |
4 | // Use, modification and distribution are subject to the Boost Software License, |
5 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
6 | // http://www.boost.org/LICENSE_1_0.txt). |
7 | |
8 | // standalone test program for <boost/compressed_pair.hpp> |
9 | // Revised 03 Oct 2000: |
10 | // Enabled tests for VC6. |
11 | |
12 | #include <iostream> |
13 | #include <typeinfo> |
14 | #include <cassert> |
15 | |
16 | #include <boost/compressed_pair.hpp> |
17 | #include <boost/test/test_tools.hpp> |
18 | |
19 | using namespace boost; |
20 | |
21 | struct empty_UDT |
22 | { |
23 | ~empty_UDT(){}; |
24 | empty_UDT& operator=(const empty_UDT&){ return *this; } |
25 | bool operator==(const empty_UDT&)const |
26 | { return true; } |
27 | }; |
28 | struct empty_POD_UDT |
29 | { |
30 | empty_POD_UDT& operator=(const empty_POD_UDT&){ return *this; } |
31 | bool operator==(const empty_POD_UDT&)const |
32 | { return true; } |
33 | }; |
34 | |
35 | struct non_empty1 |
36 | { |
37 | int i; |
38 | non_empty1() : i(1){} |
39 | non_empty1(int v) : i(v){} |
40 | friend bool operator==(const non_empty1& a, const non_empty1& b) |
41 | { return a.i == b.i; } |
42 | }; |
43 | |
44 | struct non_empty2 |
45 | { |
46 | int i; |
47 | non_empty2() : i(3){} |
48 | non_empty2(int v) : i(v){} |
49 | friend bool operator==(const non_empty2& a, const non_empty2& b) |
50 | { return a.i == b.i; } |
51 | }; |
52 | |
53 | #ifdef __GNUC__ |
54 | using std::swap; |
55 | #endif |
56 | |
57 | template <class T1, class T2> |
58 | struct compressed_pair_tester |
59 | { |
60 | // define the types we need: |
61 | typedef T1 first_type; |
62 | typedef T2 second_type; |
63 | typedef typename call_traits<first_type>::param_type first_param_type; |
64 | typedef typename call_traits<second_type>::param_type second_param_type; |
65 | // define our test proc: |
66 | static void test(first_param_type p1, second_param_type p2, first_param_type p3, second_param_type p4); |
67 | }; |
68 | |
69 | template <class T1, class T2> |
70 | void compressed_pair_tester<T1, T2>::test(first_param_type p1, second_param_type p2, first_param_type p3, second_param_type p4) |
71 | { |
72 | #ifndef __GNUC__ |
73 | // gcc 2.90 can't cope with function scope using |
74 | // declarations, and generates an internal compiler error... |
75 | using std::swap; |
76 | #endif |
77 | // default construct: |
78 | boost::compressed_pair<T1,T2> cp1; |
79 | // first param construct: |
80 | boost::compressed_pair<T1,T2> cp2(p1); |
81 | cp2.second() = p2; |
82 | BOOST_CHECK(cp2.first() == p1); |
83 | BOOST_CHECK(cp2.second() == p2); |
84 | // second param construct: |
85 | boost::compressed_pair<T1,T2> cp3(p2); |
86 | cp3.first() = p1; |
87 | BOOST_CHECK(cp3.second() == p2); |
88 | BOOST_CHECK(cp3.first() == p1); |
89 | // both param construct: |
90 | boost::compressed_pair<T1,T2> cp4(p1, p2); |
91 | BOOST_CHECK(cp4.first() == p1); |
92 | BOOST_CHECK(cp4.second() == p2); |
93 | boost::compressed_pair<T1,T2> cp5(p3, p4); |
94 | BOOST_CHECK(cp5.first() == p3); |
95 | BOOST_CHECK(cp5.second() == p4); |
96 | // check const members: |
97 | const boost::compressed_pair<T1,T2>& cpr1 = cp4; |
98 | BOOST_CHECK(cpr1.first() == p1); |
99 | BOOST_CHECK(cpr1.second() == p2); |
100 | |
101 | // copy construct: |
102 | boost::compressed_pair<T1,T2> cp6(cp4); |
103 | BOOST_CHECK(cp6.first() == p1); |
104 | BOOST_CHECK(cp6.second() == p2); |
105 | // assignment: |
106 | cp1 = cp4; |
107 | BOOST_CHECK(cp1.first() == p1); |
108 | BOOST_CHECK(cp1.second() == p2); |
109 | cp1 = cp5; |
110 | BOOST_CHECK(cp1.first() == p3); |
111 | BOOST_CHECK(cp1.second() == p4); |
112 | // swap: |
113 | cp4.swap(cp5); |
114 | BOOST_CHECK(cp4.first() == p3); |
115 | BOOST_CHECK(cp4.second() == p4); |
116 | BOOST_CHECK(cp5.first() == p1); |
117 | BOOST_CHECK(cp5.second() == p2); |
118 | swap(cp4,cp5); |
119 | BOOST_CHECK(cp4.first() == p1); |
120 | BOOST_CHECK(cp4.second() == p2); |
121 | BOOST_CHECK(cp5.first() == p3); |
122 | BOOST_CHECK(cp5.second() == p4); |
123 | } |
124 | |
125 | // |
126 | // tests for case where one or both |
127 | // parameters are reference types: |
128 | // |
129 | template <class T1, class T2> |
130 | struct compressed_pair_reference_tester |
131 | { |
132 | // define the types we need: |
133 | typedef T1 first_type; |
134 | typedef T2 second_type; |
135 | typedef typename call_traits<first_type>::param_type first_param_type; |
136 | typedef typename call_traits<second_type>::param_type second_param_type; |
137 | // define our test proc: |
138 | static void test(first_param_type p1, second_param_type p2, first_param_type p3, second_param_type p4); |
139 | }; |
140 | |
141 | template <class T1, class T2> |
142 | void compressed_pair_reference_tester<T1, T2>::test(first_param_type p1, second_param_type p2, first_param_type p3, second_param_type p4) |
143 | { |
144 | #ifndef __GNUC__ |
145 | // gcc 2.90 can't cope with function scope using |
146 | // declarations, and generates an internal compiler error... |
147 | using std::swap; |
148 | #endif |
149 | // both param construct: |
150 | boost::compressed_pair<T1,T2> cp4(p1, p2); |
151 | BOOST_CHECK(cp4.first() == p1); |
152 | BOOST_CHECK(cp4.second() == p2); |
153 | boost::compressed_pair<T1,T2> cp5(p3, p4); |
154 | BOOST_CHECK(cp5.first() == p3); |
155 | BOOST_CHECK(cp5.second() == p4); |
156 | // check const members: |
157 | const boost::compressed_pair<T1,T2>& cpr1 = cp4; |
158 | BOOST_CHECK(cpr1.first() == p1); |
159 | BOOST_CHECK(cpr1.second() == p2); |
160 | |
161 | // copy construct: |
162 | boost::compressed_pair<T1,T2> cp6(cp4); |
163 | BOOST_CHECK(cp6.first() == p1); |
164 | BOOST_CHECK(cp6.second() == p2); |
165 | // assignment: |
166 | // VC6 bug: |
167 | // When second() is an empty class, VC6 performs the |
168 | // assignment by doing a memcpy - even though the empty |
169 | // class is really a zero sized base class, the result |
170 | // is that the memory of first() gets trampled over. |
171 | // Similar arguments apply to the case that first() is |
172 | // an empty base class. |
173 | // Strangely the problem is dependent upon the compiler |
174 | // settings - some generate the problem others do not. |
175 | cp4.first() = p3; |
176 | cp4.second() = p4; |
177 | BOOST_CHECK(cp4.first() == p3); |
178 | BOOST_CHECK(cp4.second() == p4); |
179 | } |
180 | // |
181 | // supplimentary tests for case where first arg only is a reference type: |
182 | // |
183 | template <class T1, class T2> |
184 | struct compressed_pair_reference1_tester |
185 | { |
186 | // define the types we need: |
187 | typedef T1 first_type; |
188 | typedef T2 second_type; |
189 | typedef typename call_traits<first_type>::param_type first_param_type; |
190 | typedef typename call_traits<second_type>::param_type second_param_type; |
191 | // define our test proc: |
192 | static void test(first_param_type p1, second_param_type p2, first_param_type p3, second_param_type p4); |
193 | }; |
194 | |
195 | template <class T1, class T2> |
196 | void compressed_pair_reference1_tester<T1, T2>::test(first_param_type p1, second_param_type p2, first_param_type, second_param_type) |
197 | { |
198 | #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION |
199 | // first param construct: |
200 | boost::compressed_pair<T1,T2> cp2(p1); |
201 | cp2.second() = p2; |
202 | BOOST_CHECK(cp2.first() == p1); |
203 | BOOST_CHECK(cp2.second() == p2); |
204 | #endif |
205 | } |
206 | // |
207 | // supplimentary tests for case where second arg only is a reference type: |
208 | // |
209 | template <class T1, class T2> |
210 | struct compressed_pair_reference2_tester |
211 | { |
212 | // define the types we need: |
213 | typedef T1 first_type; |
214 | typedef T2 second_type; |
215 | typedef typename call_traits<first_type>::param_type first_param_type; |
216 | typedef typename call_traits<second_type>::param_type second_param_type; |
217 | // define our test proc: |
218 | static void test(first_param_type p1, second_param_type p2, first_param_type p3, second_param_type p4); |
219 | }; |
220 | |
221 | template <class T1, class T2> |
222 | void compressed_pair_reference2_tester<T1, T2>::test(first_param_type p1, second_param_type p2, first_param_type, second_param_type) |
223 | { |
224 | #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION |
225 | // second param construct: |
226 | boost::compressed_pair<T1,T2> cp3(p2); |
227 | cp3.first() = p1; |
228 | BOOST_CHECK(cp3.second() == p2); |
229 | BOOST_CHECK(cp3.first() == p1); |
230 | #endif |
231 | } |
232 | |
233 | // |
234 | // tests for where one or the other parameter is an array: |
235 | // |
236 | template <class T1, class T2> |
237 | struct compressed_pair_array1_tester |
238 | { |
239 | // define the types we need: |
240 | typedef T1 first_type; |
241 | typedef T2 second_type; |
242 | typedef typename call_traits<first_type>::param_type first_param_type; |
243 | typedef typename call_traits<second_type>::param_type second_param_type; |
244 | // define our test proc: |
245 | static void test(first_param_type p1, second_param_type p2, first_param_type p3, second_param_type p4); |
246 | }; |
247 | |
248 | template <class T1, class T2> |
249 | void compressed_pair_array1_tester<T1, T2>::test(first_param_type p1, second_param_type p2, first_param_type, second_param_type) |
250 | { |
251 | // default construct: |
252 | boost::compressed_pair<T1,T2> cp1; |
253 | // second param construct: |
254 | boost::compressed_pair<T1,T2> cp3(p2); |
255 | cp3.first()[0] = p1[0]; |
256 | BOOST_CHECK(cp3.second() == p2); |
257 | BOOST_CHECK(cp3.first()[0] == p1[0]); |
258 | // check const members: |
259 | const boost::compressed_pair<T1,T2>& cpr1 = cp3; |
260 | BOOST_CHECK(cpr1.first()[0] == p1[0]); |
261 | BOOST_CHECK(cpr1.second() == p2); |
262 | |
263 | BOOST_CHECK(sizeof(T1) == sizeof(cp1.first())); |
264 | } |
265 | |
266 | template <class T1, class T2> |
267 | struct compressed_pair_array2_tester |
268 | { |
269 | // define the types we need: |
270 | typedef T1 first_type; |
271 | typedef T2 second_type; |
272 | typedef typename call_traits<first_type>::param_type first_param_type; |
273 | typedef typename call_traits<second_type>::param_type second_param_type; |
274 | // define our test proc: |
275 | static void test(first_param_type p1, second_param_type p2, first_param_type p3, second_param_type p4); |
276 | }; |
277 | |
278 | template <class T1, class T2> |
279 | void compressed_pair_array2_tester<T1, T2>::test(first_param_type p1, second_param_type p2, first_param_type, second_param_type) |
280 | { |
281 | // default construct: |
282 | boost::compressed_pair<T1,T2> cp1; |
283 | // first param construct: |
284 | boost::compressed_pair<T1,T2> cp2(p1); |
285 | cp2.second()[0] = p2[0]; |
286 | BOOST_CHECK(cp2.first() == p1); |
287 | BOOST_CHECK(cp2.second()[0] == p2[0]); |
288 | // check const members: |
289 | const boost::compressed_pair<T1,T2>& cpr1 = cp2; |
290 | BOOST_CHECK(cpr1.first() == p1); |
291 | BOOST_CHECK(cpr1.second()[0] == p2[0]); |
292 | |
293 | BOOST_CHECK(sizeof(T2) == sizeof(cp1.second())); |
294 | } |
295 | |
296 | template <class T1, class T2> |
297 | struct compressed_pair_array_tester |
298 | { |
299 | // define the types we need: |
300 | typedef T1 first_type; |
301 | typedef T2 second_type; |
302 | typedef typename call_traits<first_type>::param_type first_param_type; |
303 | typedef typename call_traits<second_type>::param_type second_param_type; |
304 | // define our test proc: |
305 | static void test(first_param_type p1, second_param_type p2, first_param_type p3, second_param_type p4); |
306 | }; |
307 | |
308 | template <class T1, class T2> |
309 | void compressed_pair_array_tester<T1, T2>::test(first_param_type p1, second_param_type p2, first_param_type, second_param_type) |
310 | { |
311 | // default construct: |
312 | boost::compressed_pair<T1,T2> cp1; |
313 | cp1.first()[0] = p1[0]; |
314 | cp1.second()[0] = p2[0]; |
315 | BOOST_CHECK(cp1.first()[0] == p1[0]); |
316 | BOOST_CHECK(cp1.second()[0] == p2[0]); |
317 | // check const members: |
318 | const boost::compressed_pair<T1,T2>& cpr1 = cp1; |
319 | BOOST_CHECK(cpr1.first()[0] == p1[0]); |
320 | BOOST_CHECK(cpr1.second()[0] == p2[0]); |
321 | |
322 | BOOST_CHECK(sizeof(T1) == sizeof(cp1.first())); |
323 | BOOST_CHECK(sizeof(T2) == sizeof(cp1.second())); |
324 | } |
325 | |
326 | int test_main(int, char *[]) |
327 | { |
328 | // declare some variables to pass to the tester: |
329 | non_empty1 ne1(2); |
330 | non_empty1 ne2(3); |
331 | non_empty2 ne3(4); |
332 | non_empty2 ne4(5); |
333 | empty_POD_UDT e1; |
334 | empty_UDT e2; |
335 | |
336 | // T1 != T2, both non-empty |
337 | compressed_pair_tester<non_empty1,non_empty2>::test(p1: ne1, p2: ne3, p3: ne2, p4: ne4); |
338 | // T1 != T2, T2 empty |
339 | compressed_pair_tester<non_empty1,empty_POD_UDT>::test(p1: ne1, p2: e1, p3: ne2, p4: e1); |
340 | // T1 != T2, T1 empty |
341 | compressed_pair_tester<empty_POD_UDT,non_empty2>::test(p1: e1, p2: ne3, p3: e1, p4: ne4); |
342 | // T1 != T2, both empty |
343 | compressed_pair_tester<empty_POD_UDT,empty_UDT>::test(p1: e1, p2: e2, p3: e1, p4: e2); |
344 | // T1 == T2, both non-empty |
345 | compressed_pair_tester<non_empty1,non_empty1>::test(p1: ne1, p2: ne1, p3: ne2, p4: ne2); |
346 | // T1 == T2, both empty |
347 | compressed_pair_tester<empty_UDT,empty_UDT>::test(p1: e2, p2: e2, p3: e2, p4: e2); |
348 | |
349 | |
350 | // test references: |
351 | |
352 | // T1 != T2, both non-empty |
353 | compressed_pair_reference_tester<non_empty1&,non_empty2>::test(p1&: ne1, p2: ne3, p3&: ne2, p4: ne4); |
354 | compressed_pair_reference_tester<non_empty1,non_empty2&>::test(p1: ne1, p2&: ne3, p3: ne2, p4&: ne4); |
355 | compressed_pair_reference1_tester<non_empty1&,non_empty2>::test(p1&: ne1, p2: ne3, ne2, ne4); |
356 | compressed_pair_reference2_tester<non_empty1,non_empty2&>::test(p1: ne1, p2&: ne3, ne2, ne4); |
357 | // T1 != T2, T2 empty |
358 | compressed_pair_reference_tester<non_empty1&,empty_POD_UDT>::test(p1&: ne1, p2: e1, p3&: ne2, p4: e1); |
359 | compressed_pair_reference1_tester<non_empty1&,empty_POD_UDT>::test(p1&: ne1, p2: e1, ne2, e1); |
360 | // T1 != T2, T1 empty |
361 | compressed_pair_reference_tester<empty_POD_UDT,non_empty2&>::test(p1: e1, p2&: ne3, p3: e1, p4&: ne4); |
362 | compressed_pair_reference2_tester<empty_POD_UDT,non_empty2&>::test(p1: e1, p2&: ne3, e1, ne4); |
363 | // T1 == T2, both non-empty |
364 | compressed_pair_reference_tester<non_empty1&,non_empty1&>::test(p1&: ne1, p2&: ne1, p3&: ne2, p4&: ne2); |
365 | |
366 | // tests arrays: |
367 | non_empty1 nea1[2]; |
368 | non_empty1 nea2[2]; |
369 | non_empty2 nea3[2]; |
370 | non_empty2 nea4[2]; |
371 | nea1[0] = non_empty1(5); |
372 | nea2[0] = non_empty1(6); |
373 | nea3[0] = non_empty2(7); |
374 | nea4[0] = non_empty2(8); |
375 | |
376 | // T1 != T2, both non-empty |
377 | compressed_pair_array1_tester<non_empty1[2],non_empty2>::test(p1: nea1, p2: ne3, nea2, ne4); |
378 | compressed_pair_array2_tester<non_empty1,non_empty2[2]>::test(p1: ne1, p2: nea3, ne2, nea4); |
379 | compressed_pair_array_tester<non_empty1[2],non_empty2[2]>::test(p1: nea1, p2: nea3, nea2, nea4); |
380 | // T1 != T2, T2 empty |
381 | compressed_pair_array1_tester<non_empty1[2],empty_POD_UDT>::test(p1: nea1, p2: e1, nea2, e1); |
382 | // T1 != T2, T1 empty |
383 | compressed_pair_array2_tester<empty_POD_UDT,non_empty2[2]>::test(p1: e1, p2: nea3, e1, nea4); |
384 | // T1 == T2, both non-empty |
385 | compressed_pair_array_tester<non_empty1[2],non_empty1[2]>::test(p1: nea1, p2: nea1, nea2, nea2); |
386 | return 0; |
387 | } |
388 | |
389 | |
390 | unsigned int expected_failures = 0; |
391 | |
392 | |
393 | |
394 | |
395 | |
396 | |