1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 
10 // <regex>
11 
12 // template <class BidirectionalIterator, class Allocator, class charT, class traits>
13 //     bool
14 //     regex_search(BidirectionalIterator first, BidirectionalIterator last,
15 //                  match_results<BidirectionalIterator, Allocator>& m,
16 //                  const basic_regex<charT, traits>& e,
17 //                  regex_constants::match_flag_type flags = regex_constants::match_default);
18 
19 #include <regex>
20 #include <cassert>
21 #include "test_macros.h"
22 #include "test_iterators.h"
23 
main(int,char **)24 int main(int, char**)
25 {
26     {
27         std::cmatch m;
28         const char s[] = "a";
29         assert(std::regex_search(s, m, std::regex("a", std::regex_constants::extended)));
30         assert(m.size() == 1);
31         assert(!m.empty());
32         assert(!m.prefix().matched);
33         assert(m.prefix().first == s);
34         assert(m.prefix().second == m[0].first);
35         assert(!m.suffix().matched);
36         assert(m.suffix().first == m[0].second);
37         assert(m.suffix().second == s+1);
38         assert(m.length(0) == 1);
39         assert(m.position(0) == 0);
40         assert(m.str(0) == "a");
41     }
42     {
43         std::cmatch m;
44         const char s[] = "ab";
45         assert(std::regex_search(s, m, std::regex("ab", std::regex_constants::extended)));
46         assert(m.size() == 1);
47         assert(!m.prefix().matched);
48         assert(m.prefix().first == s);
49         assert(m.prefix().second == m[0].first);
50         assert(!m.suffix().matched);
51         assert(m.suffix().first == m[0].second);
52         assert(m.suffix().second == s+2);
53         assert(m.length(0) == 2);
54         assert(m.position(0) == 0);
55         assert(m.str(0) == "ab");
56     }
57     {
58         std::cmatch m;
59         const char s[] = "ab";
60         assert(!std::regex_search(s, m, std::regex("ba", std::regex_constants::extended)));
61         assert(m.size() == 0);
62         assert(m.empty());
63     }
64     {
65         std::cmatch m;
66         const char s[] = "aab";
67         assert(std::regex_search(s, m, std::regex("ab", std::regex_constants::extended)));
68         assert(m.size() == 1);
69         assert(m.prefix().matched);
70         assert(m.prefix().first == s);
71         assert(m.prefix().second == m[0].first);
72         assert(!m.suffix().matched);
73         assert(m.suffix().first == m[0].second);
74         assert(m.suffix().second == s+3);
75         assert(m.length(0) == 2);
76         assert(m.position(0) == 1);
77         assert(m.str(0) == "ab");
78     }
79     {
80         std::cmatch m;
81         const char s[] = "aab";
82         assert(!std::regex_search(s, m, std::regex("ab", std::regex_constants::extended),
83                                             std::regex_constants::match_continuous));
84         assert(m.size() == 0);
85     }
86     {
87         std::cmatch m;
88         const char s[] = "abcd";
89         assert(std::regex_search(s, m, std::regex("bc", std::regex_constants::extended)));
90         assert(m.size() == 1);
91         assert(m.prefix().matched);
92         assert(m.prefix().first == s);
93         assert(m.prefix().second == m[0].first);
94         assert(m.suffix().matched);
95         assert(m.suffix().first == m[0].second);
96         assert(m.suffix().second == s+4);
97         assert(m.length(0) == 2);
98         assert(m.position(0) == 1);
99         assert(m.str(0) == "bc");
100     }
101     {
102         std::cmatch m;
103         const char s[] = "abbc";
104         assert(std::regex_search(s, m, std::regex("ab*c", std::regex_constants::extended)));
105         assert(m.size() == 1);
106         assert(!m.prefix().matched);
107         assert(m.prefix().first == s);
108         assert(m.prefix().second == m[0].first);
109         assert(!m.suffix().matched);
110         assert(m.suffix().first == m[0].second);
111         assert(m.suffix().second == s+4);
112         assert(m.length(0) == 4);
113         assert(m.position(0) == 0);
114         assert(m.str(0) == s);
115     }
116     {
117         std::cmatch m;
118         const char s[] = "ababc";
119         assert(std::regex_search(s, m, std::regex("(ab)*c", std::regex_constants::extended)));
120         assert(m.size() == 2);
121         assert(!m.prefix().matched);
122         assert(m.prefix().first == s);
123         assert(m.prefix().second == m[0].first);
124         assert(!m.suffix().matched);
125         assert(m.suffix().first == m[0].second);
126         assert(m.suffix().second == s+5);
127         assert(m.length(0) == 5);
128         assert(m.position(0) == 0);
129         assert(m.str(0) == s);
130         assert(m.length(1) == 2);
131         assert(m.position(1) == 2);
132         assert(m.str(1) == "ab");
133     }
134     {
135         std::cmatch m;
136         const char s[] = "abcdefghijk";
137         assert(std::regex_search(s, m, std::regex("cd((e)fg)hi",
138                                  std::regex_constants::extended)));
139         assert(m.size() == 3);
140         assert(m.prefix().matched);
141         assert(m.prefix().first == s);
142         assert(m.prefix().second == m[0].first);
143         assert(m.suffix().matched);
144         assert(m.suffix().first == m[0].second);
145         assert(m.suffix().second == s+std::regex_traits<char>::length(s));
146         assert(m.length(0) == 7);
147         assert(m.position(0) == 2);
148         assert(m.str(0) == "cdefghi");
149         assert(m.length(1) == 3);
150         assert(m.position(1) == 4);
151         assert(m.str(1) == "efg");
152         assert(m.length(2) == 1);
153         assert(m.position(2) == 4);
154         assert(m.str(2) == "e");
155     }
156     {
157         std::cmatch m;
158         const char s[] = "abc";
159         assert(std::regex_search(s, m, std::regex("^abc", std::regex_constants::extended)));
160         assert(m.size() == 1);
161         assert(!m.prefix().matched);
162         assert(m.prefix().first == s);
163         assert(m.prefix().second == m[0].first);
164         assert(!m.suffix().matched);
165         assert(m.suffix().first == m[0].second);
166         assert(m.suffix().second == s+3);
167         assert(m.length(0) == 3);
168         assert(m.position(0) == 0);
169         assert(m.str(0) == s);
170     }
171     {
172         std::cmatch m;
173         const char s[] = "abcd";
174         assert(std::regex_search(s, m, std::regex("^abc", std::regex_constants::extended)));
175         assert(m.size() == 1);
176         assert(!m.prefix().matched);
177         assert(m.prefix().first == s);
178         assert(m.prefix().second == m[0].first);
179         assert(m.suffix().matched);
180         assert(m.suffix().first == m[0].second);
181         assert(m.suffix().second == s+4);
182         assert(m.length(0) == 3);
183         assert(m.position(0) == 0);
184         assert(m.str(0) == "abc");
185     }
186     {
187         std::cmatch m;
188         const char s[] = "aabc";
189         assert(!std::regex_search(s, m, std::regex("^abc", std::regex_constants::extended)));
190         assert(m.size() == 0);
191     }
192     {
193         std::cmatch m;
194         const char s[] = "abc";
195         assert(std::regex_search(s, m, std::regex("abc$", std::regex_constants::extended)));
196         assert(m.size() == 1);
197         assert(!m.prefix().matched);
198         assert(m.prefix().first == s);
199         assert(m.prefix().second == m[0].first);
200         assert(!m.suffix().matched);
201         assert(m.suffix().first == m[0].second);
202         assert(m.suffix().second == s+3);
203         assert(m.length(0) == 3);
204         assert(m.position(0) == 0);
205         assert(m.str(0) == s);
206     }
207     {
208         std::cmatch m;
209         const char s[] = "efabc";
210         assert(std::regex_search(s, m, std::regex("abc$", std::regex_constants::extended)));
211         assert(m.size() == 1);
212         assert(m.prefix().matched);
213         assert(m.prefix().first == s);
214         assert(m.prefix().second == m[0].first);
215         assert(!m.suffix().matched);
216         assert(m.suffix().first == m[0].second);
217         assert(m.suffix().second == s+5);
218         assert(m.length(0) == 3);
219         assert(m.position(0) == 2);
220         assert(m.str(0) == s+2);
221     }
222     {
223         std::cmatch m;
224         const char s[] = "efabcg";
225         assert(!std::regex_search(s, m, std::regex("abc$", std::regex_constants::extended)));
226         assert(m.size() == 0);
227     }
228     {
229         std::cmatch m;
230         const char s[] = "abc";
231         assert(std::regex_search(s, m, std::regex("a.c", std::regex_constants::extended)));
232         assert(m.size() == 1);
233         assert(!m.prefix().matched);
234         assert(m.prefix().first == s);
235         assert(m.prefix().second == m[0].first);
236         assert(!m.suffix().matched);
237         assert(m.suffix().first == m[0].second);
238         assert(m.suffix().second == s+3);
239         assert(m.length(0) == 3);
240         assert(m.position(0) == 0);
241         assert(m.str(0) == s);
242     }
243     {
244         std::cmatch m;
245         const char s[] = "acc";
246         assert(std::regex_search(s, m, std::regex("a.c", std::regex_constants::extended)));
247         assert(m.size() == 1);
248         assert(!m.prefix().matched);
249         assert(m.prefix().first == s);
250         assert(m.prefix().second == m[0].first);
251         assert(!m.suffix().matched);
252         assert(m.suffix().first == m[0].second);
253         assert(m.suffix().second == s+3);
254         assert(m.length(0) == 3);
255         assert(m.position(0) == 0);
256         assert(m.str(0) == s);
257     }
258     {
259         std::cmatch m;
260         const char s[] = "acc";
261         assert(std::regex_search(s, m, std::regex("a.c", std::regex_constants::extended)));
262         assert(m.size() == 1);
263         assert(!m.prefix().matched);
264         assert(m.prefix().first == s);
265         assert(m.prefix().second == m[0].first);
266         assert(!m.suffix().matched);
267         assert(m.suffix().first == m[0].second);
268         assert(m.suffix().second == s+3);
269         assert(m.length(0) == 3);
270         assert(m.position(0) == 0);
271         assert(m.str(0) == s);
272     }
273     {
274         std::cmatch m;
275         const char s[] = "abcdef";
276         assert(std::regex_search(s, m, std::regex("(.*).*", std::regex_constants::extended)));
277         assert(m.size() == 2);
278         assert(!m.prefix().matched);
279         assert(m.prefix().first == s);
280         assert(m.prefix().second == m[0].first);
281         assert(!m.suffix().matched);
282         assert(m.suffix().first == m[0].second);
283         assert(m.suffix().second == s+6);
284         assert(m.length(0) == 6);
285         assert(m.position(0) == 0);
286         assert(m.str(0) == s);
287         assert(m.length(1) == 6);
288         assert(m.position(1) == 0);
289         assert(m.str(1) == s);
290     }
291     {
292         std::cmatch m;
293         const char s[] = "bc";
294         assert(std::regex_search(s, m, std::regex("(a*)*", std::regex_constants::extended)));
295         assert(m.size() == 2);
296         assert(!m.prefix().matched);
297         assert(m.prefix().first == s);
298         assert(m.prefix().second == m[0].first);
299         assert(m.suffix().matched);
300         assert(m.suffix().first == m[0].second);
301         assert(m.suffix().second == s+2);
302         assert(m.length(0) == 0);
303         assert(m.position(0) == 0);
304         assert(m.str(0) == "");
305         assert(m.length(1) == 0);
306         assert(m.position(1) == 0);
307         assert(m.str(1) == "");
308     }
309     {
310         std::cmatch m;
311         const char s[] = "abbc";
312         assert(!std::regex_search(s, m, std::regex("ab{3,5}c", std::regex_constants::extended)));
313         assert(m.size() == 0);
314     }
315     {
316         std::cmatch m;
317         const char s[] = "abbbc";
318         assert(std::regex_search(s, m, std::regex("ab{3,5}c", std::regex_constants::extended)));
319         assert(m.size() == 1);
320         assert(!m.prefix().matched);
321         assert(m.prefix().first == s);
322         assert(m.prefix().second == m[0].first);
323         assert(!m.suffix().matched);
324         assert(m.suffix().first == m[0].second);
325         assert(m.suffix().second == m[0].second);
326         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
327         assert(m.position(0) == 0);
328         assert(m.str(0) == s);
329     }
330     {
331         std::cmatch m;
332         const char s[] = "abbbbc";
333         assert(std::regex_search(s, m, std::regex("ab{3,5}c", std::regex_constants::extended)));
334         assert(m.size() == 1);
335         assert(!m.prefix().matched);
336         assert(m.prefix().first == s);
337         assert(m.prefix().second == m[0].first);
338         assert(!m.suffix().matched);
339         assert(m.suffix().first == m[0].second);
340         assert(m.suffix().second == m[0].second);
341         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
342         assert(m.position(0) == 0);
343         assert(m.str(0) == s);
344     }
345     {
346         std::cmatch m;
347         const char s[] = "abbbbbc";
348         assert(std::regex_search(s, m, std::regex("ab{3,5}c", std::regex_constants::extended)));
349         assert(m.size() == 1);
350         assert(!m.prefix().matched);
351         assert(m.prefix().first == s);
352         assert(m.prefix().second == m[0].first);
353         assert(!m.suffix().matched);
354         assert(m.suffix().first == m[0].second);
355         assert(m.suffix().second == m[0].second);
356         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
357         assert(m.position(0) == 0);
358         assert(m.str(0) == s);
359     }
360     {
361         std::cmatch m;
362         const char s[] = "adefc";
363         assert(!std::regex_search(s, m, std::regex("ab{3,5}c", std::regex_constants::extended)));
364         assert(m.size() == 0);
365     }
366     {
367         std::cmatch m;
368         const char s[] = "abbbbbbc";
369         assert(!std::regex_search(s, m, std::regex("ab{3,5}c", std::regex_constants::extended)));
370         assert(m.size() == 0);
371     }
372     {
373         std::cmatch m;
374         const char s[] = "adec";
375         assert(!std::regex_search(s, m, std::regex("a.{3,5}c", std::regex_constants::extended)));
376         assert(m.size() == 0);
377     }
378     {
379         std::cmatch m;
380         const char s[] = "adefc";
381         assert(std::regex_search(s, m, std::regex("a.{3,5}c", std::regex_constants::extended)));
382         assert(m.size() == 1);
383         assert(!m.prefix().matched);
384         assert(m.prefix().first == s);
385         assert(m.prefix().second == m[0].first);
386         assert(!m.suffix().matched);
387         assert(m.suffix().first == m[0].second);
388         assert(m.suffix().second == m[0].second);
389         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
390         assert(m.position(0) == 0);
391         assert(m.str(0) == s);
392     }
393     {
394         std::cmatch m;
395         const char s[] = "adefgc";
396         assert(std::regex_search(s, m, std::regex("a.{3,5}c", std::regex_constants::extended)));
397         assert(m.size() == 1);
398         assert(!m.prefix().matched);
399         assert(m.prefix().first == s);
400         assert(m.prefix().second == m[0].first);
401         assert(!m.suffix().matched);
402         assert(m.suffix().first == m[0].second);
403         assert(m.suffix().second == m[0].second);
404         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
405         assert(m.position(0) == 0);
406         assert(m.str(0) == s);
407     }
408     {
409         std::cmatch m;
410         const char s[] = "adefghc";
411         assert(std::regex_search(s, m, std::regex("a.{3,5}c", std::regex_constants::extended)));
412         assert(m.size() == 1);
413         assert(!m.prefix().matched);
414         assert(m.prefix().first == s);
415         assert(m.prefix().second == m[0].first);
416         assert(!m.suffix().matched);
417         assert(m.suffix().first == m[0].second);
418         assert(m.suffix().second == m[0].second);
419         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
420         assert(m.position(0) == 0);
421         assert(m.str(0) == s);
422     }
423     {
424         std::cmatch m;
425         const char s[] = "adefghic";
426         assert(!std::regex_search(s, m, std::regex("a.{3,5}c", std::regex_constants::extended)));
427         assert(m.size() == 0);
428     }
429     {
430         std::cmatch m;
431         const char s[] = "tournament";
432         assert(std::regex_search(s, m, std::regex("tour|to|tournament",
433                                               std::regex_constants::extended)));
434         assert(m.size() == 1);
435         assert(!m.prefix().matched);
436         assert(m.prefix().first == s);
437         assert(m.prefix().second == m[0].first);
438         assert(!m.suffix().matched);
439         assert(m.suffix().first == m[0].second);
440         assert(m.suffix().second == m[0].second);
441         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
442         assert(m.position(0) == 0);
443         assert(m.str(0) == s);
444     }
445     {
446         std::cmatch m;
447         const char s[] = "tournamenttotour";
448         assert(std::regex_search(s, m, std::regex("(tour|to|tournament)+",
449                std::regex_constants::extended | std::regex_constants::nosubs)));
450         assert(m.size() == 1);
451         assert(!m.prefix().matched);
452         assert(m.prefix().first == s);
453         assert(m.prefix().second == m[0].first);
454         assert(!m.suffix().matched);
455         assert(m.suffix().first == m[0].second);
456         assert(m.suffix().second == m[0].second);
457         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
458         assert(m.position(0) == 0);
459         assert(m.str(0) == s);
460     }
461     {
462         std::cmatch m;
463         const char s[] = "ttotour";
464         assert(std::regex_search(s, m, std::regex("(tour|to|t)+",
465                                               std::regex_constants::extended)));
466         assert(m.size() == 2);
467         assert(!m.prefix().matched);
468         assert(m.prefix().first == s);
469         assert(m.prefix().second == m[0].first);
470         assert(!m.suffix().matched);
471         assert(m.suffix().first == m[0].second);
472         assert(m.suffix().second == m[0].second);
473         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
474         assert(m.position(0) == 0);
475         assert(m.str(0) == s);
476         assert(m.length(1) == 4);
477         assert(m.position(1) == 3);
478         assert(m.str(1) == "tour");
479     }
480     {
481         std::cmatch m;
482         const char s[] = "-ab,ab-";
483         assert(!std::regex_search(s, m, std::regex("-(.*),\1-", std::regex_constants::extended)));
484         assert(m.size() == 0);
485     }
486     {
487         std::cmatch m;
488         const char s[] = "-ab,ab-";
489         assert(std::regex_search(s, m, std::regex("-(.*),\\1-", std::regex_constants::extended)));
490         assert(m.size() == 2);
491         assert(!m.prefix().matched);
492         assert(m.prefix().first == s);
493         assert(m.prefix().second == m[0].first);
494         assert(!m.suffix().matched);
495         assert(m.suffix().first == m[0].second);
496         assert(m.suffix().second == m[0].second);
497         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
498         assert(m.position(0) == 0);
499         assert(m.str(0) == s);
500         assert(m.length(1) == 2);
501         assert(m.position(1) == 1);
502         assert(m.str(1) == "ab");
503     }
504     {
505         std::cmatch m;
506         const char s[] = "-ab,ab-";
507         assert(std::regex_search(s, m, std::regex("-.*,.*-", std::regex_constants::extended)));
508         assert(m.size() == 1);
509         assert(!m.prefix().matched);
510         assert(m.prefix().first == s);
511         assert(m.prefix().second == m[0].first);
512         assert(!m.suffix().matched);
513         assert(m.suffix().first == m[0].second);
514         assert(m.suffix().second == m[0].second);
515         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
516         assert(m.position(0) == 0);
517         assert(m.str(0) == s);
518     }
519     {
520         std::cmatch m;
521         const char s[] = "a";
522         assert(std::regex_search(s, m, std::regex("^[a]$",
523                                                  std::regex_constants::extended)));
524         assert(m.size() == 1);
525         assert(!m.prefix().matched);
526         assert(m.prefix().first == s);
527         assert(m.prefix().second == m[0].first);
528         assert(!m.suffix().matched);
529         assert(m.suffix().first == m[0].second);
530         assert(m.suffix().second == m[0].second);
531         assert(m.length(0) == 1);
532         assert(m.position(0) == 0);
533         assert(m.str(0) == "a");
534     }
535     {
536         std::cmatch m;
537         const char s[] = "a";
538         assert(std::regex_search(s, m, std::regex("^[ab]$",
539                                                  std::regex_constants::extended)));
540         assert(m.size() == 1);
541         assert(!m.prefix().matched);
542         assert(m.prefix().first == s);
543         assert(m.prefix().second == m[0].first);
544         assert(!m.suffix().matched);
545         assert(m.suffix().first == m[0].second);
546         assert(m.suffix().second == m[0].second);
547         assert(m.length(0) == 1);
548         assert(m.position(0) == 0);
549         assert(m.str(0) == "a");
550     }
551     {
552         std::cmatch m;
553         const char s[] = "c";
554         assert(std::regex_search(s, m, std::regex("^[a-f]$",
555                                                  std::regex_constants::extended)));
556         assert(m.size() == 1);
557         assert(!m.prefix().matched);
558         assert(m.prefix().first == s);
559         assert(m.prefix().second == m[0].first);
560         assert(!m.suffix().matched);
561         assert(m.suffix().first == m[0].second);
562         assert(m.suffix().second == m[0].second);
563         assert(m.length(0) == 1);
564         assert(m.position(0) == 0);
565         assert(m.str(0) == s);
566     }
567     {
568         std::cmatch m;
569         const char s[] = "g";
570         assert(!std::regex_search(s, m, std::regex("^[a-f]$",
571                                                  std::regex_constants::extended)));
572         assert(m.size() == 0);
573     }
574     {
575         std::cmatch m;
576         const char s[] = "Iraqi";
577         assert(std::regex_search(s, m, std::regex("q[^u]",
578                                                  std::regex_constants::extended)));
579         assert(m.size() == 1);
580         assert(m.prefix().matched);
581         assert(m.prefix().first == s);
582         assert(m.prefix().second == m[0].first);
583         assert(!m.suffix().matched);
584         assert(m.suffix().first == m[0].second);
585         assert(m.suffix().second == m[0].second);
586         assert(m.length(0) == 2);
587         assert(m.position(0) == 3);
588         assert(m.str(0) == "qi");
589     }
590     {
591         std::cmatch m;
592         const char s[] = "Iraq";
593         assert(!std::regex_search(s, m, std::regex("q[^u]",
594                                                  std::regex_constants::extended)));
595         assert(m.size() == 0);
596     }
597     {
598         std::cmatch m;
599         const char s[] = "AmB";
600         assert(std::regex_search(s, m, std::regex("A[[:lower:]]B",
601                                                  std::regex_constants::extended)));
602         assert(m.size() == 1);
603         assert(!m.prefix().matched);
604         assert(m.prefix().first == s);
605         assert(m.prefix().second == m[0].first);
606         assert(!m.suffix().matched);
607         assert(m.suffix().first == m[0].second);
608         assert(m.suffix().second == m[0].second);
609         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
610         assert(m.position(0) == 0);
611         assert(m.str(0) == s);
612     }
613     {
614         std::cmatch m;
615         const char s[] = "AMB";
616         assert(!std::regex_search(s, m, std::regex("A[[:lower:]]B",
617                                                  std::regex_constants::extended)));
618         assert(m.size() == 0);
619     }
620     {
621         std::cmatch m;
622         const char s[] = "AMB";
623         assert(std::regex_search(s, m, std::regex("A[^[:lower:]]B",
624                                                  std::regex_constants::extended)));
625         assert(m.size() == 1);
626         assert(!m.prefix().matched);
627         assert(m.prefix().first == s);
628         assert(m.prefix().second == m[0].first);
629         assert(!m.suffix().matched);
630         assert(m.suffix().first == m[0].second);
631         assert(m.suffix().second == m[0].second);
632         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
633         assert(m.position(0) == 0);
634         assert(m.str(0) == s);
635     }
636     {
637         std::cmatch m;
638         const char s[] = "AmB";
639         assert(!std::regex_search(s, m, std::regex("A[^[:lower:]]B",
640                                                  std::regex_constants::extended)));
641         assert(m.size() == 0);
642     }
643     {
644         std::cmatch m;
645         const char s[] = "A5B";
646         assert(!std::regex_search(s, m, std::regex("A[^[:lower:]0-9]B",
647                                                  std::regex_constants::extended)));
648         assert(m.size() == 0);
649     }
650     {
651         std::cmatch m;
652         const char s[] = "A?B";
653         assert(std::regex_search(s, m, std::regex("A[^[:lower:]0-9]B",
654                                                  std::regex_constants::extended)));
655         assert(m.size() == 1);
656         assert(!m.prefix().matched);
657         assert(m.prefix().first == s);
658         assert(m.prefix().second == m[0].first);
659         assert(!m.suffix().matched);
660         assert(m.suffix().first == m[0].second);
661         assert(m.suffix().second == m[0].second);
662         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
663         assert(m.position(0) == 0);
664         assert(m.str(0) == s);
665     }
666     {
667         std::cmatch m;
668         const char s[] = "-";
669         assert(std::regex_search(s, m, std::regex("[a[.hyphen.]z]",
670                                                  std::regex_constants::extended)));
671         assert(m.size() == 1);
672         assert(!m.prefix().matched);
673         assert(m.prefix().first == s);
674         assert(m.prefix().second == m[0].first);
675         assert(!m.suffix().matched);
676         assert(m.suffix().first == m[0].second);
677         assert(m.suffix().second == m[0].second);
678         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
679         assert(m.position(0) == 0);
680         assert(m.str(0) == s);
681     }
682     {
683         std::cmatch m;
684         const char s[] = "z";
685         assert(std::regex_search(s, m, std::regex("[a[.hyphen.]z]",
686                                                  std::regex_constants::extended)));
687         assert(m.size() == 1);
688         assert(!m.prefix().matched);
689         assert(m.prefix().first == s);
690         assert(m.prefix().second == m[0].first);
691         assert(!m.suffix().matched);
692         assert(m.suffix().first == m[0].second);
693         assert(m.suffix().second == m[0].second);
694         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<char>::length(s));
695         assert(m.position(0) == 0);
696         assert(m.str(0) == s);
697     }
698     {
699         std::cmatch m;
700         const char s[] = "m";
701         assert(!std::regex_search(s, m, std::regex("[a[.hyphen.]z]",
702                                                  std::regex_constants::extended)));
703         assert(m.size() == 0);
704     }
705     {
706         std::cmatch m;
707         const char s[] = "01a45cef9";
708         assert(std::regex_search(s, m, std::regex("[ace1-9]*",
709                                                  std::regex_constants::extended)));
710         assert(m.size() == 1);
711         assert(!m.prefix().matched);
712         assert(m.prefix().first == s);
713         assert(m.prefix().second == m[0].first);
714         assert(m.suffix().matched);
715         assert(m.suffix().first == m[0].second);
716         assert(m.suffix().second == s + std::char_traits<char>::length(s));
717         assert(m.length(0) == 0);
718         assert(m.position(0) == 0);
719         assert(m.str(0) == "");
720     }
721     {
722         std::cmatch m;
723         const char s[] = "01a45cef9";
724         assert(std::regex_search(s, m, std::regex("[ace1-9]+",
725                                                  std::regex_constants::extended)));
726         assert(m.size() == 1);
727         assert(m.prefix().matched);
728         assert(m.prefix().first == s);
729         assert(m.prefix().second == m[0].first);
730         assert(m.suffix().matched);
731         assert(m.suffix().first == m[0].second);
732         assert(m.suffix().second == s + std::char_traits<char>::length(s));
733         assert(m.length(0) == 6);
734         assert(m.position(0) == 1);
735         assert(m.str(0) == "1a45ce");
736     }
737     {
738         const char r[] = "^[-+]?[0-9]+[CF]$";
739         std::ptrdiff_t sr = std::char_traits<char>::length(r);
740         typedef forward_iterator<const char*> FI;
741         typedef bidirectional_iterator<const char*> BI;
742         std::regex regex(FI(r), FI(r+sr), std::regex_constants::extended);
743         std::match_results<BI> m;
744         const char s[] = "-40C";
745         std::ptrdiff_t ss = std::char_traits<char>::length(s);
746         assert(std::regex_search(BI(s), BI(s+ss), m, regex));
747         assert(m.size() == 1);
748         assert(!m.prefix().matched);
749         assert(m.prefix().first == BI(s));
750         assert(m.prefix().second == m[0].first);
751         assert(!m.suffix().matched);
752         assert(m.suffix().first == m[0].second);
753         assert(m.suffix().second == m[0].second);
754         assert(m.length(0) == 4);
755         assert(m.position(0) == 0);
756         assert(m.str(0) == s);
757     }
758 
759     {
760         std::wcmatch m;
761         const wchar_t s[] = L"a";
762         assert(std::regex_search(s, m, std::wregex(L"a", std::regex_constants::extended)));
763         assert(m.size() == 1);
764         assert(!m.empty());
765         assert(!m.prefix().matched);
766         assert(m.prefix().first == s);
767         assert(m.prefix().second == m[0].first);
768         assert(!m.suffix().matched);
769         assert(m.suffix().first == m[0].second);
770         assert(m.suffix().second == s+1);
771         assert(m.length(0) == 1);
772         assert(m.position(0) == 0);
773         assert(m.str(0) == L"a");
774     }
775     {
776         std::wcmatch m;
777         const wchar_t s[] = L"ab";
778         assert(std::regex_search(s, m, std::wregex(L"ab", std::regex_constants::extended)));
779         assert(m.size() == 1);
780         assert(!m.prefix().matched);
781         assert(m.prefix().first == s);
782         assert(m.prefix().second == m[0].first);
783         assert(!m.suffix().matched);
784         assert(m.suffix().first == m[0].second);
785         assert(m.suffix().second == s+2);
786         assert(m.length(0) == 2);
787         assert(m.position(0) == 0);
788         assert(m.str(0) == L"ab");
789     }
790     {
791         std::wcmatch m;
792         const wchar_t s[] = L"ab";
793         assert(!std::regex_search(s, m, std::wregex(L"ba", std::regex_constants::extended)));
794         assert(m.size() == 0);
795         assert(m.empty());
796     }
797     {
798         std::wcmatch m;
799         const wchar_t s[] = L"aab";
800         assert(std::regex_search(s, m, std::wregex(L"ab", std::regex_constants::extended)));
801         assert(m.size() == 1);
802         assert(m.prefix().matched);
803         assert(m.prefix().first == s);
804         assert(m.prefix().second == m[0].first);
805         assert(!m.suffix().matched);
806         assert(m.suffix().first == m[0].second);
807         assert(m.suffix().second == s+3);
808         assert(m.length(0) == 2);
809         assert(m.position(0) == 1);
810         assert(m.str(0) == L"ab");
811     }
812     {
813         std::wcmatch m;
814         const wchar_t s[] = L"aab";
815         assert(!std::regex_search(s, m, std::wregex(L"ab", std::regex_constants::extended),
816                                             std::regex_constants::match_continuous));
817         assert(m.size() == 0);
818     }
819     {
820         std::wcmatch m;
821         const wchar_t s[] = L"abcd";
822         assert(std::regex_search(s, m, std::wregex(L"bc", std::regex_constants::extended)));
823         assert(m.size() == 1);
824         assert(m.prefix().matched);
825         assert(m.prefix().first == s);
826         assert(m.prefix().second == m[0].first);
827         assert(m.suffix().matched);
828         assert(m.suffix().first == m[0].second);
829         assert(m.suffix().second == s+4);
830         assert(m.length(0) == 2);
831         assert(m.position(0) == 1);
832         assert(m.str(0) == L"bc");
833     }
834     {
835         std::wcmatch m;
836         const wchar_t s[] = L"abbc";
837         assert(std::regex_search(s, m, std::wregex(L"ab*c", std::regex_constants::extended)));
838         assert(m.size() == 1);
839         assert(!m.prefix().matched);
840         assert(m.prefix().first == s);
841         assert(m.prefix().second == m[0].first);
842         assert(!m.suffix().matched);
843         assert(m.suffix().first == m[0].second);
844         assert(m.suffix().second == s+4);
845         assert(m.length(0) == 4);
846         assert(m.position(0) == 0);
847         assert(m.str(0) == s);
848     }
849     {
850         std::wcmatch m;
851         const wchar_t s[] = L"ababc";
852         assert(std::regex_search(s, m, std::wregex(L"(ab)*c", std::regex_constants::extended)));
853         assert(m.size() == 2);
854         assert(!m.prefix().matched);
855         assert(m.prefix().first == s);
856         assert(m.prefix().second == m[0].first);
857         assert(!m.suffix().matched);
858         assert(m.suffix().first == m[0].second);
859         assert(m.suffix().second == s+5);
860         assert(m.length(0) == 5);
861         assert(m.position(0) == 0);
862         assert(m.str(0) == s);
863         assert(m.length(1) == 2);
864         assert(m.position(1) == 2);
865         assert(m.str(1) == L"ab");
866     }
867     {
868         std::wcmatch m;
869         const wchar_t s[] = L"abcdefghijk";
870         assert(std::regex_search(s, m, std::wregex(L"cd((e)fg)hi",
871                                  std::regex_constants::extended)));
872         assert(m.size() == 3);
873         assert(m.prefix().matched);
874         assert(m.prefix().first == s);
875         assert(m.prefix().second == m[0].first);
876         assert(m.suffix().matched);
877         assert(m.suffix().first == m[0].second);
878         assert(m.suffix().second == s+std::regex_traits<wchar_t>::length(s));
879         assert(m.length(0) == 7);
880         assert(m.position(0) == 2);
881         assert(m.str(0) == L"cdefghi");
882         assert(m.length(1) == 3);
883         assert(m.position(1) == 4);
884         assert(m.str(1) == L"efg");
885         assert(m.length(2) == 1);
886         assert(m.position(2) == 4);
887         assert(m.str(2) == L"e");
888     }
889     {
890         std::wcmatch m;
891         const wchar_t s[] = L"abc";
892         assert(std::regex_search(s, m, std::wregex(L"^abc", std::regex_constants::extended)));
893         assert(m.size() == 1);
894         assert(!m.prefix().matched);
895         assert(m.prefix().first == s);
896         assert(m.prefix().second == m[0].first);
897         assert(!m.suffix().matched);
898         assert(m.suffix().first == m[0].second);
899         assert(m.suffix().second == s+3);
900         assert(m.length(0) == 3);
901         assert(m.position(0) == 0);
902         assert(m.str(0) == s);
903     }
904     {
905         std::wcmatch m;
906         const wchar_t s[] = L"abcd";
907         assert(std::regex_search(s, m, std::wregex(L"^abc", std::regex_constants::extended)));
908         assert(m.size() == 1);
909         assert(!m.prefix().matched);
910         assert(m.prefix().first == s);
911         assert(m.prefix().second == m[0].first);
912         assert(m.suffix().matched);
913         assert(m.suffix().first == m[0].second);
914         assert(m.suffix().second == s+4);
915         assert(m.length(0) == 3);
916         assert(m.position(0) == 0);
917         assert(m.str(0) == L"abc");
918     }
919     {
920         std::wcmatch m;
921         const wchar_t s[] = L"aabc";
922         assert(!std::regex_search(s, m, std::wregex(L"^abc", std::regex_constants::extended)));
923         assert(m.size() == 0);
924     }
925     {
926         std::wcmatch m;
927         const wchar_t s[] = L"abc";
928         assert(std::regex_search(s, m, std::wregex(L"abc$", std::regex_constants::extended)));
929         assert(m.size() == 1);
930         assert(!m.prefix().matched);
931         assert(m.prefix().first == s);
932         assert(m.prefix().second == m[0].first);
933         assert(!m.suffix().matched);
934         assert(m.suffix().first == m[0].second);
935         assert(m.suffix().second == s+3);
936         assert(m.length(0) == 3);
937         assert(m.position(0) == 0);
938         assert(m.str(0) == s);
939     }
940     {
941         std::wcmatch m;
942         const wchar_t s[] = L"efabc";
943         assert(std::regex_search(s, m, std::wregex(L"abc$", std::regex_constants::extended)));
944         assert(m.size() == 1);
945         assert(m.prefix().matched);
946         assert(m.prefix().first == s);
947         assert(m.prefix().second == m[0].first);
948         assert(!m.suffix().matched);
949         assert(m.suffix().first == m[0].second);
950         assert(m.suffix().second == s+5);
951         assert(m.length(0) == 3);
952         assert(m.position(0) == 2);
953         assert(m.str(0) == s+2);
954     }
955     {
956         std::wcmatch m;
957         const wchar_t s[] = L"efabcg";
958         assert(!std::regex_search(s, m, std::wregex(L"abc$", std::regex_constants::extended)));
959         assert(m.size() == 0);
960     }
961     {
962         std::wcmatch m;
963         const wchar_t s[] = L"abc";
964         assert(std::regex_search(s, m, std::wregex(L"a.c", std::regex_constants::extended)));
965         assert(m.size() == 1);
966         assert(!m.prefix().matched);
967         assert(m.prefix().first == s);
968         assert(m.prefix().second == m[0].first);
969         assert(!m.suffix().matched);
970         assert(m.suffix().first == m[0].second);
971         assert(m.suffix().second == s+3);
972         assert(m.length(0) == 3);
973         assert(m.position(0) == 0);
974         assert(m.str(0) == s);
975     }
976     {
977         std::wcmatch m;
978         const wchar_t s[] = L"acc";
979         assert(std::regex_search(s, m, std::wregex(L"a.c", std::regex_constants::extended)));
980         assert(m.size() == 1);
981         assert(!m.prefix().matched);
982         assert(m.prefix().first == s);
983         assert(m.prefix().second == m[0].first);
984         assert(!m.suffix().matched);
985         assert(m.suffix().first == m[0].second);
986         assert(m.suffix().second == s+3);
987         assert(m.length(0) == 3);
988         assert(m.position(0) == 0);
989         assert(m.str(0) == s);
990     }
991     {
992         std::wcmatch m;
993         const wchar_t s[] = L"acc";
994         assert(std::regex_search(s, m, std::wregex(L"a.c", std::regex_constants::extended)));
995         assert(m.size() == 1);
996         assert(!m.prefix().matched);
997         assert(m.prefix().first == s);
998         assert(m.prefix().second == m[0].first);
999         assert(!m.suffix().matched);
1000         assert(m.suffix().first == m[0].second);
1001         assert(m.suffix().second == s+3);
1002         assert(m.length(0) == 3);
1003         assert(m.position(0) == 0);
1004         assert(m.str(0) == s);
1005     }
1006     {
1007         std::wcmatch m;
1008         const wchar_t s[] = L"abcdef";
1009         assert(std::regex_search(s, m, std::wregex(L"(.*).*", std::regex_constants::extended)));
1010         assert(m.size() == 2);
1011         assert(!m.prefix().matched);
1012         assert(m.prefix().first == s);
1013         assert(m.prefix().second == m[0].first);
1014         assert(!m.suffix().matched);
1015         assert(m.suffix().first == m[0].second);
1016         assert(m.suffix().second == s+6);
1017         assert(m.length(0) == 6);
1018         assert(m.position(0) == 0);
1019         assert(m.str(0) == s);
1020         assert(m.length(1) == 6);
1021         assert(m.position(1) == 0);
1022         assert(m.str(1) == s);
1023     }
1024     {
1025         std::wcmatch m;
1026         const wchar_t s[] = L"bc";
1027         assert(std::regex_search(s, m, std::wregex(L"(a*)*", std::regex_constants::extended)));
1028         assert(m.size() == 2);
1029         assert(!m.prefix().matched);
1030         assert(m.prefix().first == s);
1031         assert(m.prefix().second == m[0].first);
1032         assert(m.suffix().matched);
1033         assert(m.suffix().first == m[0].second);
1034         assert(m.suffix().second == s+2);
1035         assert(m.length(0) == 0);
1036         assert(m.position(0) == 0);
1037         assert(m.str(0) == L"");
1038         assert(m.length(1) == 0);
1039         assert(m.position(1) == 0);
1040         assert(m.str(1) == L"");
1041     }
1042     {
1043         std::wcmatch m;
1044         const wchar_t s[] = L"abbc";
1045         assert(!std::regex_search(s, m, std::wregex(L"ab{3,5}c", std::regex_constants::extended)));
1046         assert(m.size() == 0);
1047     }
1048     {
1049         std::wcmatch m;
1050         const wchar_t s[] = L"abbbc";
1051         assert(std::regex_search(s, m, std::wregex(L"ab{3,5}c", std::regex_constants::extended)));
1052         assert(m.size() == 1);
1053         assert(!m.prefix().matched);
1054         assert(m.prefix().first == s);
1055         assert(m.prefix().second == m[0].first);
1056         assert(!m.suffix().matched);
1057         assert(m.suffix().first == m[0].second);
1058         assert(m.suffix().second == m[0].second);
1059         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1060         assert(m.position(0) == 0);
1061         assert(m.str(0) == s);
1062     }
1063     {
1064         std::wcmatch m;
1065         const wchar_t s[] = L"abbbbc";
1066         assert(std::regex_search(s, m, std::wregex(L"ab{3,5}c", std::regex_constants::extended)));
1067         assert(m.size() == 1);
1068         assert(!m.prefix().matched);
1069         assert(m.prefix().first == s);
1070         assert(m.prefix().second == m[0].first);
1071         assert(!m.suffix().matched);
1072         assert(m.suffix().first == m[0].second);
1073         assert(m.suffix().second == m[0].second);
1074         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1075         assert(m.position(0) == 0);
1076         assert(m.str(0) == s);
1077     }
1078     {
1079         std::wcmatch m;
1080         const wchar_t s[] = L"abbbbbc";
1081         assert(std::regex_search(s, m, std::wregex(L"ab{3,5}c", std::regex_constants::extended)));
1082         assert(m.size() == 1);
1083         assert(!m.prefix().matched);
1084         assert(m.prefix().first == s);
1085         assert(m.prefix().second == m[0].first);
1086         assert(!m.suffix().matched);
1087         assert(m.suffix().first == m[0].second);
1088         assert(m.suffix().second == m[0].second);
1089         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1090         assert(m.position(0) == 0);
1091         assert(m.str(0) == s);
1092     }
1093     {
1094         std::wcmatch m;
1095         const wchar_t s[] = L"adefc";
1096         assert(!std::regex_search(s, m, std::wregex(L"ab{3,5}c", std::regex_constants::extended)));
1097         assert(m.size() == 0);
1098     }
1099     {
1100         std::wcmatch m;
1101         const wchar_t s[] = L"abbbbbbc";
1102         assert(!std::regex_search(s, m, std::wregex(L"ab{3,5}c", std::regex_constants::extended)));
1103         assert(m.size() == 0);
1104     }
1105     {
1106         std::wcmatch m;
1107         const wchar_t s[] = L"adec";
1108         assert(!std::regex_search(s, m, std::wregex(L"a.{3,5}c", std::regex_constants::extended)));
1109         assert(m.size() == 0);
1110     }
1111     {
1112         std::wcmatch m;
1113         const wchar_t s[] = L"adefc";
1114         assert(std::regex_search(s, m, std::wregex(L"a.{3,5}c", std::regex_constants::extended)));
1115         assert(m.size() == 1);
1116         assert(!m.prefix().matched);
1117         assert(m.prefix().first == s);
1118         assert(m.prefix().second == m[0].first);
1119         assert(!m.suffix().matched);
1120         assert(m.suffix().first == m[0].second);
1121         assert(m.suffix().second == m[0].second);
1122         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1123         assert(m.position(0) == 0);
1124         assert(m.str(0) == s);
1125     }
1126     {
1127         std::wcmatch m;
1128         const wchar_t s[] = L"adefgc";
1129         assert(std::regex_search(s, m, std::wregex(L"a.{3,5}c", std::regex_constants::extended)));
1130         assert(m.size() == 1);
1131         assert(!m.prefix().matched);
1132         assert(m.prefix().first == s);
1133         assert(m.prefix().second == m[0].first);
1134         assert(!m.suffix().matched);
1135         assert(m.suffix().first == m[0].second);
1136         assert(m.suffix().second == m[0].second);
1137         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1138         assert(m.position(0) == 0);
1139         assert(m.str(0) == s);
1140     }
1141     {
1142         std::wcmatch m;
1143         const wchar_t s[] = L"adefghc";
1144         assert(std::regex_search(s, m, std::wregex(L"a.{3,5}c", std::regex_constants::extended)));
1145         assert(m.size() == 1);
1146         assert(!m.prefix().matched);
1147         assert(m.prefix().first == s);
1148         assert(m.prefix().second == m[0].first);
1149         assert(!m.suffix().matched);
1150         assert(m.suffix().first == m[0].second);
1151         assert(m.suffix().second == m[0].second);
1152         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1153         assert(m.position(0) == 0);
1154         assert(m.str(0) == s);
1155     }
1156     {
1157         std::wcmatch m;
1158         const wchar_t s[] = L"adefghic";
1159         assert(!std::regex_search(s, m, std::wregex(L"a.{3,5}c", std::regex_constants::extended)));
1160         assert(m.size() == 0);
1161     }
1162     {
1163         std::wcmatch m;
1164         const wchar_t s[] = L"tournament";
1165         assert(std::regex_search(s, m, std::wregex(L"tour|to|tournament",
1166                                               std::regex_constants::extended)));
1167         assert(m.size() == 1);
1168         assert(!m.prefix().matched);
1169         assert(m.prefix().first == s);
1170         assert(m.prefix().second == m[0].first);
1171         assert(!m.suffix().matched);
1172         assert(m.suffix().first == m[0].second);
1173         assert(m.suffix().second == m[0].second);
1174         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1175         assert(m.position(0) == 0);
1176         assert(m.str(0) == s);
1177     }
1178     {
1179         std::wcmatch m;
1180         const wchar_t s[] = L"tournamenttotour";
1181         assert(std::regex_search(s, m, std::wregex(L"(tour|to|tournament)+",
1182                std::regex_constants::extended | std::regex_constants::nosubs)));
1183         assert(m.size() == 1);
1184         assert(!m.prefix().matched);
1185         assert(m.prefix().first == s);
1186         assert(m.prefix().second == m[0].first);
1187         assert(!m.suffix().matched);
1188         assert(m.suffix().first == m[0].second);
1189         assert(m.suffix().second == m[0].second);
1190         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1191         assert(m.position(0) == 0);
1192         assert(m.str(0) == s);
1193     }
1194     {
1195         std::wcmatch m;
1196         const wchar_t s[] = L"ttotour";
1197         assert(std::regex_search(s, m, std::wregex(L"(tour|to|t)+",
1198                                               std::regex_constants::extended)));
1199         assert(m.size() == 2);
1200         assert(!m.prefix().matched);
1201         assert(m.prefix().first == s);
1202         assert(m.prefix().second == m[0].first);
1203         assert(!m.suffix().matched);
1204         assert(m.suffix().first == m[0].second);
1205         assert(m.suffix().second == m[0].second);
1206         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1207         assert(m.position(0) == 0);
1208         assert(m.str(0) == s);
1209         assert(m.length(1) == 4);
1210         assert(m.position(1) == 3);
1211         assert(m.str(1) == L"tour");
1212     }
1213     {
1214         std::wcmatch m;
1215         const wchar_t s[] = L"-ab,ab-";
1216         assert(!std::regex_search(s, m, std::wregex(L"-(.*),\1-", std::regex_constants::extended)));
1217         assert(m.size() == 0);
1218     }
1219     {
1220         std::wcmatch m;
1221         const wchar_t s[] = L"-ab,ab-";
1222         assert(std::regex_search(s, m, std::wregex(L"-(.*),\\1-", std::regex_constants::extended)));
1223         assert(m.size() == 2);
1224         assert(!m.prefix().matched);
1225         assert(m.prefix().first == s);
1226         assert(m.prefix().second == m[0].first);
1227         assert(!m.suffix().matched);
1228         assert(m.suffix().first == m[0].second);
1229         assert(m.suffix().second == m[0].second);
1230         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1231         assert(m.position(0) == 0);
1232         assert(m.str(0) == s);
1233         assert(m.length(1) == 2);
1234         assert(m.position(1) == 1);
1235         assert(m.str(1) == L"ab");
1236     }
1237     {
1238         std::wcmatch m;
1239         const wchar_t s[] = L"-ab,ab-";
1240         assert(std::regex_search(s, m, std::wregex(L"-.*,.*-", std::regex_constants::extended)));
1241         assert(m.size() == 1);
1242         assert(!m.prefix().matched);
1243         assert(m.prefix().first == s);
1244         assert(m.prefix().second == m[0].first);
1245         assert(!m.suffix().matched);
1246         assert(m.suffix().first == m[0].second);
1247         assert(m.suffix().second == m[0].second);
1248         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1249         assert(m.position(0) == 0);
1250         assert(m.str(0) == s);
1251     }
1252     {
1253         std::wcmatch m;
1254         const wchar_t s[] = L"a";
1255         assert(std::regex_search(s, m, std::wregex(L"^[a]$",
1256                                                  std::regex_constants::extended)));
1257         assert(m.size() == 1);
1258         assert(!m.prefix().matched);
1259         assert(m.prefix().first == s);
1260         assert(m.prefix().second == m[0].first);
1261         assert(!m.suffix().matched);
1262         assert(m.suffix().first == m[0].second);
1263         assert(m.suffix().second == m[0].second);
1264         assert(m.length(0) == 1);
1265         assert(m.position(0) == 0);
1266         assert(m.str(0) == L"a");
1267     }
1268     {
1269         std::wcmatch m;
1270         const wchar_t s[] = L"a";
1271         assert(std::regex_search(s, m, std::wregex(L"^[ab]$",
1272                                                  std::regex_constants::extended)));
1273         assert(m.size() == 1);
1274         assert(!m.prefix().matched);
1275         assert(m.prefix().first == s);
1276         assert(m.prefix().second == m[0].first);
1277         assert(!m.suffix().matched);
1278         assert(m.suffix().first == m[0].second);
1279         assert(m.suffix().second == m[0].second);
1280         assert(m.length(0) == 1);
1281         assert(m.position(0) == 0);
1282         assert(m.str(0) == L"a");
1283     }
1284     {
1285         std::wcmatch m;
1286         const wchar_t s[] = L"c";
1287         assert(std::regex_search(s, m, std::wregex(L"^[a-f]$",
1288                                                  std::regex_constants::extended)));
1289         assert(m.size() == 1);
1290         assert(!m.prefix().matched);
1291         assert(m.prefix().first == s);
1292         assert(m.prefix().second == m[0].first);
1293         assert(!m.suffix().matched);
1294         assert(m.suffix().first == m[0].second);
1295         assert(m.suffix().second == m[0].second);
1296         assert(m.length(0) == 1);
1297         assert(m.position(0) == 0);
1298         assert(m.str(0) == s);
1299     }
1300     {
1301         std::wcmatch m;
1302         const wchar_t s[] = L"g";
1303         assert(!std::regex_search(s, m, std::wregex(L"^[a-f]$",
1304                                                  std::regex_constants::extended)));
1305         assert(m.size() == 0);
1306     }
1307     {
1308         std::wcmatch m;
1309         const wchar_t s[] = L"Iraqi";
1310         assert(std::regex_search(s, m, std::wregex(L"q[^u]",
1311                                                  std::regex_constants::extended)));
1312         assert(m.size() == 1);
1313         assert(m.prefix().matched);
1314         assert(m.prefix().first == s);
1315         assert(m.prefix().second == m[0].first);
1316         assert(!m.suffix().matched);
1317         assert(m.suffix().first == m[0].second);
1318         assert(m.suffix().second == m[0].second);
1319         assert(m.length(0) == 2);
1320         assert(m.position(0) == 3);
1321         assert(m.str(0) == L"qi");
1322     }
1323     {
1324         std::wcmatch m;
1325         const wchar_t s[] = L"Iraq";
1326         assert(!std::regex_search(s, m, std::wregex(L"q[^u]",
1327                                                  std::regex_constants::extended)));
1328         assert(m.size() == 0);
1329     }
1330     {
1331         std::wcmatch m;
1332         const wchar_t s[] = L"AmB";
1333         assert(std::regex_search(s, m, std::wregex(L"A[[:lower:]]B",
1334                                                  std::regex_constants::extended)));
1335         assert(m.size() == 1);
1336         assert(!m.prefix().matched);
1337         assert(m.prefix().first == s);
1338         assert(m.prefix().second == m[0].first);
1339         assert(!m.suffix().matched);
1340         assert(m.suffix().first == m[0].second);
1341         assert(m.suffix().second == m[0].second);
1342         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1343         assert(m.position(0) == 0);
1344         assert(m.str(0) == s);
1345     }
1346     {
1347         std::wcmatch m;
1348         const wchar_t s[] = L"AMB";
1349         assert(!std::regex_search(s, m, std::wregex(L"A[[:lower:]]B",
1350                                                  std::regex_constants::extended)));
1351         assert(m.size() == 0);
1352     }
1353     {
1354         std::wcmatch m;
1355         const wchar_t s[] = L"AMB";
1356         assert(std::regex_search(s, m, std::wregex(L"A[^[:lower:]]B",
1357                                                  std::regex_constants::extended)));
1358         assert(m.size() == 1);
1359         assert(!m.prefix().matched);
1360         assert(m.prefix().first == s);
1361         assert(m.prefix().second == m[0].first);
1362         assert(!m.suffix().matched);
1363         assert(m.suffix().first == m[0].second);
1364         assert(m.suffix().second == m[0].second);
1365         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1366         assert(m.position(0) == 0);
1367         assert(m.str(0) == s);
1368     }
1369     {
1370         std::wcmatch m;
1371         const wchar_t s[] = L"AmB";
1372         assert(!std::regex_search(s, m, std::wregex(L"A[^[:lower:]]B",
1373                                                  std::regex_constants::extended)));
1374         assert(m.size() == 0);
1375     }
1376     {
1377         std::wcmatch m;
1378         const wchar_t s[] = L"A5B";
1379         assert(!std::regex_search(s, m, std::wregex(L"A[^[:lower:]0-9]B",
1380                                                  std::regex_constants::extended)));
1381         assert(m.size() == 0);
1382     }
1383     {
1384         std::wcmatch m;
1385         const wchar_t s[] = L"A?B";
1386         assert(std::regex_search(s, m, std::wregex(L"A[^[:lower:]0-9]B",
1387                                                  std::regex_constants::extended)));
1388         assert(m.size() == 1);
1389         assert(!m.prefix().matched);
1390         assert(m.prefix().first == s);
1391         assert(m.prefix().second == m[0].first);
1392         assert(!m.suffix().matched);
1393         assert(m.suffix().first == m[0].second);
1394         assert(m.suffix().second == m[0].second);
1395         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1396         assert(m.position(0) == 0);
1397         assert(m.str(0) == s);
1398     }
1399     {
1400         std::wcmatch m;
1401         const wchar_t s[] = L"-";
1402         assert(std::regex_search(s, m, std::wregex(L"[a[.hyphen.]z]",
1403                                                  std::regex_constants::extended)));
1404         assert(m.size() == 1);
1405         assert(!m.prefix().matched);
1406         assert(m.prefix().first == s);
1407         assert(m.prefix().second == m[0].first);
1408         assert(!m.suffix().matched);
1409         assert(m.suffix().first == m[0].second);
1410         assert(m.suffix().second == m[0].second);
1411         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1412         assert(m.position(0) == 0);
1413         assert(m.str(0) == s);
1414     }
1415     {
1416         std::wcmatch m;
1417         const wchar_t s[] = L"z";
1418         assert(std::regex_search(s, m, std::wregex(L"[a[.hyphen.]z]",
1419                                                  std::regex_constants::extended)));
1420         assert(m.size() == 1);
1421         assert(!m.prefix().matched);
1422         assert(m.prefix().first == s);
1423         assert(m.prefix().second == m[0].first);
1424         assert(!m.suffix().matched);
1425         assert(m.suffix().first == m[0].second);
1426         assert(m.suffix().second == m[0].second);
1427         assert(m.length(0) >= 0 && static_cast<size_t>(m.length(0)) == std::char_traits<wchar_t>::length(s));
1428         assert(m.position(0) == 0);
1429         assert(m.str(0) == s);
1430     }
1431     {
1432         std::wcmatch m;
1433         const wchar_t s[] = L"m";
1434         assert(!std::regex_search(s, m, std::wregex(L"[a[.hyphen.]z]",
1435                                                  std::regex_constants::extended)));
1436         assert(m.size() == 0);
1437     }
1438     {
1439         std::wcmatch m;
1440         const wchar_t s[] = L"01a45cef9";
1441         assert(std::regex_search(s, m, std::wregex(L"[ace1-9]*",
1442                                                  std::regex_constants::extended)));
1443         assert(m.size() == 1);
1444         assert(!m.prefix().matched);
1445         assert(m.prefix().first == s);
1446         assert(m.prefix().second == m[0].first);
1447         assert(m.suffix().matched);
1448         assert(m.suffix().first == m[0].second);
1449         assert(m.suffix().second == s + std::char_traits<wchar_t>::length(s));
1450         assert(m.length(0) == 0);
1451         assert(m.position(0) == 0);
1452         assert(m.str(0) == L"");
1453     }
1454     {
1455         std::wcmatch m;
1456         const wchar_t s[] = L"01a45cef9";
1457         assert(std::regex_search(s, m, std::wregex(L"[ace1-9]+",
1458                                                  std::regex_constants::extended)));
1459         assert(m.size() == 1);
1460         assert(m.prefix().matched);
1461         assert(m.prefix().first == s);
1462         assert(m.prefix().second == m[0].first);
1463         assert(m.suffix().matched);
1464         assert(m.suffix().first == m[0].second);
1465         assert(m.suffix().second == s + std::char_traits<wchar_t>::length(s));
1466         assert(m.length(0) == 6);
1467         assert(m.position(0) == 1);
1468         assert(m.str(0) == L"1a45ce");
1469     }
1470     {
1471         const wchar_t r[] = L"^[-+]?[0-9]+[CF]$";
1472         std::ptrdiff_t sr = std::char_traits<wchar_t>::length(r);
1473         typedef forward_iterator<const wchar_t*> FI;
1474         typedef bidirectional_iterator<const wchar_t*> BI;
1475         std::wregex regex(FI(r), FI(r+sr), std::regex_constants::extended);
1476         std::match_results<BI> m;
1477         const wchar_t s[] = L"-40C";
1478         std::ptrdiff_t ss = std::char_traits<wchar_t>::length(s);
1479         assert(std::regex_search(BI(s), BI(s+ss), m, regex));
1480         assert(m.size() == 1);
1481         assert(!m.prefix().matched);
1482         assert(m.prefix().first == BI(s));
1483         assert(m.prefix().second == m[0].first);
1484         assert(!m.suffix().matched);
1485         assert(m.suffix().first == m[0].second);
1486         assert(m.suffix().second == m[0].second);
1487         assert(m.length(0) == 4);
1488         assert(m.position(0) == 0);
1489         assert(m.str(0) == s);
1490     }
1491 
1492   return 0;
1493 }
1494