1 //===----------------------------------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
12 // template <class BidirectionalIterator, class Allocator, class charT,
14 // bool regex_match(BidirectionalIterator first, BidirectionalIterator last,
15 // match_results<BidirectionalIterator, Allocator>& m,
16 // const basic_regex<charT, traits>& e,
17 // regex_constants::match_flag_type flags
18 // = regex_constants::match_default);
22 #include "test_macros.h"
23 #include "test_iterators.h"
25 #include "platform_support.h" // locale name macros
32 assert(std::regex_match(s, m, std::regex("a", std::regex_constants::awk)));
33 assert(m.size() == 1);
35 assert(!m.prefix().matched);
36 assert(m.prefix().first == s);
37 assert(m.prefix().second == m[0].first);
38 assert(!m.suffix().matched);
39 assert(m.suffix().first == m[0].second);
40 assert(m.suffix().second == s+1);
41 assert(m.length(0) == 1);
42 assert(m.position(0) == 0);
43 assert(m.str(0) == "a");
47 const char s[] = "ab";
48 assert(std::regex_match(s, m, std::regex("ab", std::regex_constants::awk)));
49 assert(m.size() == 1);
50 assert(!m.prefix().matched);
51 assert(m.prefix().first == s);
52 assert(m.prefix().second == m[0].first);
53 assert(!m.suffix().matched);
54 assert(m.suffix().first == m[0].second);
55 assert(m.suffix().second == s+2);
56 assert(m.length(0) == 2);
57 assert(m.position(0) == 0);
58 assert(m.str(0) == "ab");
62 const char s[] = "ab";
63 assert(!std::regex_match(s, m, std::regex("ba", std::regex_constants::awk)));
64 assert(m.size() == 0);
69 const char s[] = "aab";
70 assert(!std::regex_match(s, m, std::regex("ab", std::regex_constants::awk)));
71 assert(m.size() == 0);
75 const char s[] = "aab";
76 assert(!std::regex_match(s, m, std::regex("ab", std::regex_constants::awk),
77 std::regex_constants::match_continuous));
78 assert(m.size() == 0);
82 const char s[] = "abcd";
83 assert(!std::regex_match(s, m, std::regex("bc", std::regex_constants::awk)));
84 assert(m.size() == 0);
88 const char s[] = "abbc";
89 assert(std::regex_match(s, m, std::regex("ab*c", std::regex_constants::awk)));
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) == 4);
98 assert(m.position(0) == 0);
99 assert(m.str(0) == s);
103 const char s[] = "ababc";
104 assert(std::regex_match(s, m, std::regex("(ab)*c", std::regex_constants::awk)));
105 assert(m.size() == 2);
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+5);
112 assert(m.length(0) == 5);
113 assert(m.position(0) == 0);
114 assert(m.str(0) == s);
115 assert(m.length(1) == 2);
116 assert(m.position(1) == 2);
117 assert(m.str(1) == "ab");
121 const char s[] = "abcdefghijk";
122 assert(!std::regex_match(s, m, std::regex("cd((e)fg)hi",
123 std::regex_constants::awk)));
124 assert(m.size() == 0);
128 const char s[] = "abc";
129 assert(std::regex_match(s, m, std::regex("^abc", std::regex_constants::awk)));
130 assert(m.size() == 1);
131 assert(!m.prefix().matched);
132 assert(m.prefix().first == s);
133 assert(m.prefix().second == m[0].first);
134 assert(!m.suffix().matched);
135 assert(m.suffix().first == m[0].second);
136 assert(m.suffix().second == s+3);
137 assert(m.length(0) == 3);
138 assert(m.position(0) == 0);
139 assert(m.str(0) == s);
143 const char s[] = "abcd";
144 assert(!std::regex_match(s, m, std::regex("^abc", std::regex_constants::awk)));
145 assert(m.size() == 0);
149 const char s[] = "aabc";
150 assert(!std::regex_match(s, m, std::regex("^abc", std::regex_constants::awk)));
151 assert(m.size() == 0);
155 const char s[] = "abc";
156 assert(std::regex_match(s, m, std::regex("abc$", std::regex_constants::awk)));
157 assert(m.size() == 1);
158 assert(!m.prefix().matched);
159 assert(m.prefix().first == s);
160 assert(m.prefix().second == m[0].first);
161 assert(!m.suffix().matched);
162 assert(m.suffix().first == m[0].second);
163 assert(m.suffix().second == s+3);
164 assert(m.length(0) == 3);
165 assert(m.position(0) == 0);
166 assert(m.str(0) == s);
170 const char s[] = "efabc";
171 assert(!std::regex_match(s, m, std::regex("abc$", std::regex_constants::awk)));
172 assert(m.size() == 0);
176 const char s[] = "efabcg";
177 assert(!std::regex_match(s, m, std::regex("abc$", std::regex_constants::awk)));
178 assert(m.size() == 0);
182 const char s[] = "abc";
183 assert(std::regex_match(s, m, std::regex("a.c", std::regex_constants::awk)));
184 assert(m.size() == 1);
185 assert(!m.prefix().matched);
186 assert(m.prefix().first == s);
187 assert(m.prefix().second == m[0].first);
188 assert(!m.suffix().matched);
189 assert(m.suffix().first == m[0].second);
190 assert(m.suffix().second == s+3);
191 assert(m.length(0) == 3);
192 assert(m.position(0) == 0);
193 assert(m.str(0) == s);
197 const char s[] = "acc";
198 assert(std::regex_match(s, m, std::regex("a.c", std::regex_constants::awk)));
199 assert(m.size() == 1);
200 assert(!m.prefix().matched);
201 assert(m.prefix().first == s);
202 assert(m.prefix().second == m[0].first);
203 assert(!m.suffix().matched);
204 assert(m.suffix().first == m[0].second);
205 assert(m.suffix().second == s+3);
206 assert(m.length(0) == 3);
207 assert(m.position(0) == 0);
208 assert(m.str(0) == s);
212 const char s[] = "acc";
213 assert(std::regex_match(s, m, std::regex("a.c", std::regex_constants::awk)));
214 assert(m.size() == 1);
215 assert(!m.prefix().matched);
216 assert(m.prefix().first == s);
217 assert(m.prefix().second == m[0].first);
218 assert(!m.suffix().matched);
219 assert(m.suffix().first == m[0].second);
220 assert(m.suffix().second == s+3);
221 assert(m.length(0) == 3);
222 assert(m.position(0) == 0);
223 assert(m.str(0) == s);
227 const char s[] = "abcdef";
228 assert(std::regex_match(s, m, std::regex("(.*).*", std::regex_constants::awk)));
229 assert(m.size() == 2);
230 assert(!m.prefix().matched);
231 assert(m.prefix().first == s);
232 assert(m.prefix().second == m[0].first);
233 assert(!m.suffix().matched);
234 assert(m.suffix().first == m[0].second);
235 assert(m.suffix().second == s+6);
236 assert(m.length(0) == 6);
237 assert(m.position(0) == 0);
238 assert(m.str(0) == s);
239 assert(m.length(1) == 6);
240 assert(m.position(1) == 0);
241 assert(m.str(1) == s);
245 const char s[] = "bc";
246 assert(!std::regex_match(s, m, std::regex("(a*)*", std::regex_constants::awk)));
247 assert(m.size() == 0);
251 const char s[] = "abbc";
252 assert(!std::regex_match(s, m, std::regex("ab{3,5}c", std::regex_constants::awk)));
253 assert(m.size() == 0);
257 const char s[] = "abbbc";
258 assert(std::regex_match(s, m, std::regex("ab{3,5}c", std::regex_constants::awk)));
259 assert(m.size() == 1);
260 assert(!m.prefix().matched);
261 assert(m.prefix().first == s);
262 assert(m.prefix().second == m[0].first);
263 assert(!m.suffix().matched);
264 assert(m.suffix().first == m[0].second);
265 assert(m.suffix().second == m[0].second);
266 assert(m.length(0) == std::char_traits<char>::length(s));
267 assert(m.position(0) == 0);
268 assert(m.str(0) == s);
272 const char s[] = "abbbbc";
273 assert(std::regex_match(s, m, std::regex("ab{3,5}c", std::regex_constants::awk)));
274 assert(m.size() == 1);
275 assert(!m.prefix().matched);
276 assert(m.prefix().first == s);
277 assert(m.prefix().second == m[0].first);
278 assert(!m.suffix().matched);
279 assert(m.suffix().first == m[0].second);
280 assert(m.suffix().second == m[0].second);
281 assert(m.length(0) == std::char_traits<char>::length(s));
282 assert(m.position(0) == 0);
283 assert(m.str(0) == s);
287 const char s[] = "abbbbbc";
288 assert(std::regex_match(s, m, std::regex("ab{3,5}c", std::regex_constants::awk)));
289 assert(m.size() == 1);
290 assert(!m.prefix().matched);
291 assert(m.prefix().first == s);
292 assert(m.prefix().second == m[0].first);
293 assert(!m.suffix().matched);
294 assert(m.suffix().first == m[0].second);
295 assert(m.suffix().second == m[0].second);
296 assert(m.length(0) == std::char_traits<char>::length(s));
297 assert(m.position(0) == 0);
298 assert(m.str(0) == s);
302 const char s[] = "adefc";
303 assert(!std::regex_match(s, m, std::regex("ab{3,5}c", std::regex_constants::awk)));
304 assert(m.size() == 0);
308 const char s[] = "abbbbbbc";
309 assert(!std::regex_match(s, m, std::regex("ab{3,5}c", std::regex_constants::awk)));
310 assert(m.size() == 0);
314 const char s[] = "adec";
315 assert(!std::regex_match(s, m, std::regex("a.{3,5}c", std::regex_constants::awk)));
316 assert(m.size() == 0);
320 const char s[] = "adefc";
321 assert(std::regex_match(s, m, std::regex("a.{3,5}c", std::regex_constants::awk)));
322 assert(m.size() == 1);
323 assert(!m.prefix().matched);
324 assert(m.prefix().first == s);
325 assert(m.prefix().second == m[0].first);
326 assert(!m.suffix().matched);
327 assert(m.suffix().first == m[0].second);
328 assert(m.suffix().second == m[0].second);
329 assert(m.length(0) == std::char_traits<char>::length(s));
330 assert(m.position(0) == 0);
331 assert(m.str(0) == s);
335 const char s[] = "adefgc";
336 assert(std::regex_match(s, m, std::regex("a.{3,5}c", std::regex_constants::awk)));
337 assert(m.size() == 1);
338 assert(!m.prefix().matched);
339 assert(m.prefix().first == s);
340 assert(m.prefix().second == m[0].first);
341 assert(!m.suffix().matched);
342 assert(m.suffix().first == m[0].second);
343 assert(m.suffix().second == m[0].second);
344 assert(m.length(0) == std::char_traits<char>::length(s));
345 assert(m.position(0) == 0);
346 assert(m.str(0) == s);
350 const char s[] = "adefghc";
351 assert(std::regex_match(s, m, std::regex("a.{3,5}c", std::regex_constants::awk)));
352 assert(m.size() == 1);
353 assert(!m.prefix().matched);
354 assert(m.prefix().first == s);
355 assert(m.prefix().second == m[0].first);
356 assert(!m.suffix().matched);
357 assert(m.suffix().first == m[0].second);
358 assert(m.suffix().second == m[0].second);
359 assert(m.length(0) == std::char_traits<char>::length(s));
360 assert(m.position(0) == 0);
361 assert(m.str(0) == s);
365 const char s[] = "adefghic";
366 assert(!std::regex_match(s, m, std::regex("a.{3,5}c", std::regex_constants::awk)));
367 assert(m.size() == 0);
371 const char s[] = "tournament";
372 assert(std::regex_match(s, m, std::regex("tour|to|tournament",
373 std::regex_constants::awk)));
374 assert(m.size() == 1);
375 assert(!m.prefix().matched);
376 assert(m.prefix().first == s);
377 assert(m.prefix().second == m[0].first);
378 assert(!m.suffix().matched);
379 assert(m.suffix().first == m[0].second);
380 assert(m.suffix().second == m[0].second);
381 assert(m.length(0) == std::char_traits<char>::length(s));
382 assert(m.position(0) == 0);
383 assert(m.str(0) == s);
387 const char s[] = "tournamenttotour";
388 assert(std::regex_match(s, m, std::regex("(tour|to|tournament)+",
389 std::regex_constants::awk | std::regex_constants::nosubs)));
390 assert(m.size() == 1);
391 assert(!m.prefix().matched);
392 assert(m.prefix().first == s);
393 assert(m.prefix().second == m[0].first);
394 assert(!m.suffix().matched);
395 assert(m.suffix().first == m[0].second);
396 assert(m.suffix().second == m[0].second);
397 assert(m.length(0) == std::char_traits<char>::length(s));
398 assert(m.position(0) == 0);
399 assert(m.str(0) == s);
403 const char s[] = "ttotour";
404 assert(std::regex_match(s, m, std::regex("(tour|to|t)+",
405 std::regex_constants::awk)));
406 assert(m.size() == 2);
407 assert(!m.prefix().matched);
408 assert(m.prefix().first == s);
409 assert(m.prefix().second == m[0].first);
410 assert(!m.suffix().matched);
411 assert(m.suffix().first == m[0].second);
412 assert(m.suffix().second == m[0].second);
413 assert(m.length(0) == std::char_traits<char>::length(s));
414 assert(m.position(0) == 0);
415 assert(m.str(0) == s);
416 assert(m.length(1) == 4);
417 assert(m.position(1) == 3);
418 assert(m.str(1) == "tour");
422 const char s[] = "-ab,ab-";
423 assert(!std::regex_match(s, m, std::regex("-(.*),\1-", std::regex_constants::awk)));
424 assert(m.size() == 0);
428 const char s[] = "-ab,ab-";
429 assert(std::regex_match(s, m, std::regex("-.*,.*-", std::regex_constants::awk)));
430 assert(m.size() == 1);
431 assert(!m.prefix().matched);
432 assert(m.prefix().first == s);
433 assert(m.prefix().second == m[0].first);
434 assert(!m.suffix().matched);
435 assert(m.suffix().first == m[0].second);
436 assert(m.suffix().second == m[0].second);
437 assert(m.length(0) == std::char_traits<char>::length(s));
438 assert(m.position(0) == 0);
439 assert(m.str(0) == s);
443 const char s[] = "a";
444 assert(std::regex_match(s, m, std::regex("^[a]$",
445 std::regex_constants::awk)));
446 assert(m.size() == 1);
447 assert(!m.prefix().matched);
448 assert(m.prefix().first == s);
449 assert(m.prefix().second == m[0].first);
450 assert(!m.suffix().matched);
451 assert(m.suffix().first == m[0].second);
452 assert(m.suffix().second == m[0].second);
453 assert(m.length(0) == 1);
454 assert(m.position(0) == 0);
455 assert(m.str(0) == "a");
459 const char s[] = "a";
460 assert(std::regex_match(s, m, std::regex("^[ab]$",
461 std::regex_constants::awk)));
462 assert(m.size() == 1);
463 assert(!m.prefix().matched);
464 assert(m.prefix().first == s);
465 assert(m.prefix().second == m[0].first);
466 assert(!m.suffix().matched);
467 assert(m.suffix().first == m[0].second);
468 assert(m.suffix().second == m[0].second);
469 assert(m.length(0) == 1);
470 assert(m.position(0) == 0);
471 assert(m.str(0) == "a");
475 const char s[] = "c";
476 assert(std::regex_match(s, m, std::regex("^[a-f]$",
477 std::regex_constants::awk)));
478 assert(m.size() == 1);
479 assert(!m.prefix().matched);
480 assert(m.prefix().first == s);
481 assert(m.prefix().second == m[0].first);
482 assert(!m.suffix().matched);
483 assert(m.suffix().first == m[0].second);
484 assert(m.suffix().second == m[0].second);
485 assert(m.length(0) == 1);
486 assert(m.position(0) == 0);
487 assert(m.str(0) == s);
491 const char s[] = "g";
492 assert(!std::regex_match(s, m, std::regex("^[a-f]$",
493 std::regex_constants::awk)));
494 assert(m.size() == 0);
498 const char s[] = "Iraqi";
499 assert(!std::regex_match(s, m, std::regex("q[^u]",
500 std::regex_constants::awk)));
501 assert(m.size() == 0);
505 const char s[] = "Iraq";
506 assert(!std::regex_match(s, m, std::regex("q[^u]",
507 std::regex_constants::awk)));
508 assert(m.size() == 0);
512 const char s[] = "AmB";
513 assert(std::regex_match(s, m, std::regex("A[[:lower:]]B",
514 std::regex_constants::awk)));
515 assert(m.size() == 1);
516 assert(!m.prefix().matched);
517 assert(m.prefix().first == s);
518 assert(m.prefix().second == m[0].first);
519 assert(!m.suffix().matched);
520 assert(m.suffix().first == m[0].second);
521 assert(m.suffix().second == m[0].second);
522 assert(m.length(0) == std::char_traits<char>::length(s));
523 assert(m.position(0) == 0);
524 assert(m.str(0) == s);
528 const char s[] = "AMB";
529 assert(!std::regex_match(s, m, std::regex("A[[:lower:]]B",
530 std::regex_constants::awk)));
531 assert(m.size() == 0);
535 const char s[] = "AMB";
536 assert(std::regex_match(s, m, std::regex("A[^[:lower:]]B",
537 std::regex_constants::awk)));
538 assert(m.size() == 1);
539 assert(!m.prefix().matched);
540 assert(m.prefix().first == s);
541 assert(m.prefix().second == m[0].first);
542 assert(!m.suffix().matched);
543 assert(m.suffix().first == m[0].second);
544 assert(m.suffix().second == m[0].second);
545 assert(m.length(0) == std::char_traits<char>::length(s));
546 assert(m.position(0) == 0);
547 assert(m.str(0) == s);
551 const char s[] = "AmB";
552 assert(!std::regex_match(s, m, std::regex("A[^[:lower:]]B",
553 std::regex_constants::awk)));
554 assert(m.size() == 0);
558 const char s[] = "A5B";
559 assert(!std::regex_match(s, m, std::regex("A[^[:lower:]0-9]B",
560 std::regex_constants::awk)));
561 assert(m.size() == 0);
565 const char s[] = "A?B";
566 assert(std::regex_match(s, m, std::regex("A[^[:lower:]0-9]B",
567 std::regex_constants::awk)));
568 assert(m.size() == 1);
569 assert(!m.prefix().matched);
570 assert(m.prefix().first == s);
571 assert(m.prefix().second == m[0].first);
572 assert(!m.suffix().matched);
573 assert(m.suffix().first == m[0].second);
574 assert(m.suffix().second == m[0].second);
575 assert(m.length(0) == std::char_traits<char>::length(s));
576 assert(m.position(0) == 0);
577 assert(m.str(0) == s);
581 const char s[] = "-";
582 assert(std::regex_match(s, m, std::regex("[a[.hyphen.]z]",
583 std::regex_constants::awk)));
584 assert(m.size() == 1);
585 assert(!m.prefix().matched);
586 assert(m.prefix().first == s);
587 assert(m.prefix().second == m[0].first);
588 assert(!m.suffix().matched);
589 assert(m.suffix().first == m[0].second);
590 assert(m.suffix().second == m[0].second);
591 assert(m.length(0) == std::char_traits<char>::length(s));
592 assert(m.position(0) == 0);
593 assert(m.str(0) == s);
597 const char s[] = "z";
598 assert(std::regex_match(s, m, std::regex("[a[.hyphen.]z]",
599 std::regex_constants::awk)));
600 assert(m.size() == 1);
601 assert(!m.prefix().matched);
602 assert(m.prefix().first == s);
603 assert(m.prefix().second == m[0].first);
604 assert(!m.suffix().matched);
605 assert(m.suffix().first == m[0].second);
606 assert(m.suffix().second == m[0].second);
607 assert(m.length(0) == std::char_traits<char>::length(s));
608 assert(m.position(0) == 0);
609 assert(m.str(0) == s);
613 const char s[] = "m";
614 assert(!std::regex_match(s, m, std::regex("[a[.hyphen.]z]",
615 std::regex_constants::awk)));
616 assert(m.size() == 0);
618 std::locale::global(std::locale(LOCALE_cs_CZ_ISO8859_2));
622 const char s[] = "m";
623 assert(std::regex_match(s, m, std::regex("[a[=M=]z]",
624 std::regex_constants::awk);
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) == std::char_traits<char>::length(s));
633 assert(m.position(0) == 0);
634 assert(m.str(0) == s);
638 const char s[] = "Ch";
639 assert(std::regex_match(s, m, std::regex("[a[.ch.]z]",
640 std::regex_constants::awk | std::regex_constants::icase)));
641 assert(m.size() == 1);
642 assert(!m.prefix().matched);
643 assert(m.prefix().first == s);
644 assert(m.prefix().second == m[0].first);
645 assert(!m.suffix().matched);
646 assert(m.suffix().first == m[0].second);
647 assert(m.suffix().second == m[0].second);
648 assert(m.length(0) == std::char_traits<char>::length(s));
649 assert(m.position(0) == 0);
650 assert(m.str(0) == s);
652 std::locale::global(std::locale("C"));
655 const char s[] = "m";
656 assert(!std::regex_match(s, m, std::regex("[a[=M=]z]",
657 std::regex_constants::awk)));
658 assert(m.size() == 0);
662 const char s[] = "01a45cef9";
663 assert(!std::regex_match(s, m, std::regex("[ace1-9]*",
664 std::regex_constants::awk)));
665 assert(m.size() == 0);
669 const char s[] = "01a45cef9";
670 assert(!std::regex_match(s, m, std::regex("[ace1-9]+",
671 std::regex_constants::awk)));
672 assert(m.size() == 0);
675 const char r[] = "^[-+]?[0-9]+[CF]$";
676 std::ptrdiff_t sr = std::char_traits<char>::length(r);
677 typedef forward_iterator<const char*> FI;
678 typedef bidirectional_iterator<const char*> BI;
679 std::regex regex(FI(r), FI(r+sr), std::regex_constants::awk);
680 std::match_results<BI> m;
681 const char s[] = "-40C";
682 std::ptrdiff_t ss = std::char_traits<char>::length(s);
683 assert(std::regex_match(BI(s), BI(s+ss), m, regex));
684 assert(m.size() == 1);
685 assert(!m.prefix().matched);
686 assert(m.prefix().first == BI(s));
687 assert(m.prefix().second == m[0].first);
688 assert(!m.suffix().matched);
689 assert(m.suffix().first == m[0].second);
690 assert(m.suffix().second == m[0].second);
691 assert(m.length(0) == 4);
692 assert(m.position(0) == 0);
693 assert(m.str(0) == s);
697 const char s[] = "\n\n\n";
698 assert(std::regex_match(s, m, std::regex("[\\n]+",
699 std::regex_constants::awk)));
700 assert(m.size() == 1);
701 assert(!m.prefix().matched);
702 assert(m.prefix().first == s);
703 assert(m.prefix().second == m[0].first);
704 assert(!m.suffix().matched);
705 assert(m.suffix().first == m[0].second);
706 assert(m.suffix().second == s + std::char_traits<char>::length(s));
707 assert(m.length(0) == std::char_traits<char>::length(s));
708 assert(m.position(0) == 0);
709 assert(m.str(0) == s);
713 const wchar_t s[] = L"a";
714 assert(std::regex_match(s, m, std::wregex(L"a", std::regex_constants::awk)));
715 assert(m.size() == 1);
717 assert(!m.prefix().matched);
718 assert(m.prefix().first == s);
719 assert(m.prefix().second == m[0].first);
720 assert(!m.suffix().matched);
721 assert(m.suffix().first == m[0].second);
722 assert(m.suffix().second == s+1);
723 assert(m.length(0) == 1);
724 assert(m.position(0) == 0);
725 assert(m.str(0) == L"a");
729 const wchar_t s[] = L"ab";
730 assert(std::regex_match(s, m, std::wregex(L"ab", std::regex_constants::awk)));
731 assert(m.size() == 1);
732 assert(!m.prefix().matched);
733 assert(m.prefix().first == s);
734 assert(m.prefix().second == m[0].first);
735 assert(!m.suffix().matched);
736 assert(m.suffix().first == m[0].second);
737 assert(m.suffix().second == s+2);
738 assert(m.length(0) == 2);
739 assert(m.position(0) == 0);
740 assert(m.str(0) == L"ab");
744 const wchar_t s[] = L"ab";
745 assert(!std::regex_match(s, m, std::wregex(L"ba", std::regex_constants::awk)));
746 assert(m.size() == 0);
751 const wchar_t s[] = L"aab";
752 assert(!std::regex_match(s, m, std::wregex(L"ab", std::regex_constants::awk)));
753 assert(m.size() == 0);
757 const wchar_t s[] = L"aab";
758 assert(!std::regex_match(s, m, std::wregex(L"ab", std::regex_constants::awk),
759 std::regex_constants::match_continuous));
760 assert(m.size() == 0);
764 const wchar_t s[] = L"abcd";
765 assert(!std::regex_match(s, m, std::wregex(L"bc", std::regex_constants::awk)));
766 assert(m.size() == 0);
770 const wchar_t s[] = L"abbc";
771 assert(std::regex_match(s, m, std::wregex(L"ab*c", std::regex_constants::awk)));
772 assert(m.size() == 1);
773 assert(!m.prefix().matched);
774 assert(m.prefix().first == s);
775 assert(m.prefix().second == m[0].first);
776 assert(!m.suffix().matched);
777 assert(m.suffix().first == m[0].second);
778 assert(m.suffix().second == s+4);
779 assert(m.length(0) == 4);
780 assert(m.position(0) == 0);
781 assert(m.str(0) == s);
785 const wchar_t s[] = L"ababc";
786 assert(std::regex_match(s, m, std::wregex(L"(ab)*c", std::regex_constants::awk)));
787 assert(m.size() == 2);
788 assert(!m.prefix().matched);
789 assert(m.prefix().first == s);
790 assert(m.prefix().second == m[0].first);
791 assert(!m.suffix().matched);
792 assert(m.suffix().first == m[0].second);
793 assert(m.suffix().second == s+5);
794 assert(m.length(0) == 5);
795 assert(m.position(0) == 0);
796 assert(m.str(0) == s);
797 assert(m.length(1) == 2);
798 assert(m.position(1) == 2);
799 assert(m.str(1) == L"ab");
803 const wchar_t s[] = L"abcdefghijk";
804 assert(!std::regex_match(s, m, std::wregex(L"cd((e)fg)hi",
805 std::regex_constants::awk)));
806 assert(m.size() == 0);
810 const wchar_t s[] = L"abc";
811 assert(std::regex_match(s, m, std::wregex(L"^abc", std::regex_constants::awk)));
812 assert(m.size() == 1);
813 assert(!m.prefix().matched);
814 assert(m.prefix().first == s);
815 assert(m.prefix().second == m[0].first);
816 assert(!m.suffix().matched);
817 assert(m.suffix().first == m[0].second);
818 assert(m.suffix().second == s+3);
819 assert(m.length(0) == 3);
820 assert(m.position(0) == 0);
821 assert(m.str(0) == s);
825 const wchar_t s[] = L"abcd";
826 assert(!std::regex_match(s, m, std::wregex(L"^abc", std::regex_constants::awk)));
827 assert(m.size() == 0);
831 const wchar_t s[] = L"aabc";
832 assert(!std::regex_match(s, m, std::wregex(L"^abc", std::regex_constants::awk)));
833 assert(m.size() == 0);
837 const wchar_t s[] = L"abc";
838 assert(std::regex_match(s, m, std::wregex(L"abc$", std::regex_constants::awk)));
839 assert(m.size() == 1);
840 assert(!m.prefix().matched);
841 assert(m.prefix().first == s);
842 assert(m.prefix().second == m[0].first);
843 assert(!m.suffix().matched);
844 assert(m.suffix().first == m[0].second);
845 assert(m.suffix().second == s+3);
846 assert(m.length(0) == 3);
847 assert(m.position(0) == 0);
848 assert(m.str(0) == s);
852 const wchar_t s[] = L"efabc";
853 assert(!std::regex_match(s, m, std::wregex(L"abc$", std::regex_constants::awk)));
854 assert(m.size() == 0);
858 const wchar_t s[] = L"efabcg";
859 assert(!std::regex_match(s, m, std::wregex(L"abc$", std::regex_constants::awk)));
860 assert(m.size() == 0);
864 const wchar_t s[] = L"abc";
865 assert(std::regex_match(s, m, std::wregex(L"a.c", std::regex_constants::awk)));
866 assert(m.size() == 1);
867 assert(!m.prefix().matched);
868 assert(m.prefix().first == s);
869 assert(m.prefix().second == m[0].first);
870 assert(!m.suffix().matched);
871 assert(m.suffix().first == m[0].second);
872 assert(m.suffix().second == s+3);
873 assert(m.length(0) == 3);
874 assert(m.position(0) == 0);
875 assert(m.str(0) == s);
879 const wchar_t s[] = L"acc";
880 assert(std::regex_match(s, m, std::wregex(L"a.c", std::regex_constants::awk)));
881 assert(m.size() == 1);
882 assert(!m.prefix().matched);
883 assert(m.prefix().first == s);
884 assert(m.prefix().second == m[0].first);
885 assert(!m.suffix().matched);
886 assert(m.suffix().first == m[0].second);
887 assert(m.suffix().second == s+3);
888 assert(m.length(0) == 3);
889 assert(m.position(0) == 0);
890 assert(m.str(0) == s);
894 const wchar_t s[] = L"acc";
895 assert(std::regex_match(s, m, std::wregex(L"a.c", std::regex_constants::awk)));
896 assert(m.size() == 1);
897 assert(!m.prefix().matched);
898 assert(m.prefix().first == s);
899 assert(m.prefix().second == m[0].first);
900 assert(!m.suffix().matched);
901 assert(m.suffix().first == m[0].second);
902 assert(m.suffix().second == s+3);
903 assert(m.length(0) == 3);
904 assert(m.position(0) == 0);
905 assert(m.str(0) == s);
909 const wchar_t s[] = L"abcdef";
910 assert(std::regex_match(s, m, std::wregex(L"(.*).*", std::regex_constants::awk)));
911 assert(m.size() == 2);
912 assert(!m.prefix().matched);
913 assert(m.prefix().first == s);
914 assert(m.prefix().second == m[0].first);
915 assert(!m.suffix().matched);
916 assert(m.suffix().first == m[0].second);
917 assert(m.suffix().second == s+6);
918 assert(m.length(0) == 6);
919 assert(m.position(0) == 0);
920 assert(m.str(0) == s);
921 assert(m.length(1) == 6);
922 assert(m.position(1) == 0);
923 assert(m.str(1) == s);
927 const wchar_t s[] = L"bc";
928 assert(!std::regex_match(s, m, std::wregex(L"(a*)*", std::regex_constants::awk)));
929 assert(m.size() == 0);
933 const wchar_t s[] = L"abbc";
934 assert(!std::regex_match(s, m, std::wregex(L"ab{3,5}c", std::regex_constants::awk)));
935 assert(m.size() == 0);
939 const wchar_t s[] = L"abbbc";
940 assert(std::regex_match(s, m, std::wregex(L"ab{3,5}c", std::regex_constants::awk)));
941 assert(m.size() == 1);
942 assert(!m.prefix().matched);
943 assert(m.prefix().first == s);
944 assert(m.prefix().second == m[0].first);
945 assert(!m.suffix().matched);
946 assert(m.suffix().first == m[0].second);
947 assert(m.suffix().second == m[0].second);
948 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
949 assert(m.position(0) == 0);
950 assert(m.str(0) == s);
954 const wchar_t s[] = L"abbbbc";
955 assert(std::regex_match(s, m, std::wregex(L"ab{3,5}c", std::regex_constants::awk)));
956 assert(m.size() == 1);
957 assert(!m.prefix().matched);
958 assert(m.prefix().first == s);
959 assert(m.prefix().second == m[0].first);
960 assert(!m.suffix().matched);
961 assert(m.suffix().first == m[0].second);
962 assert(m.suffix().second == m[0].second);
963 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
964 assert(m.position(0) == 0);
965 assert(m.str(0) == s);
969 const wchar_t s[] = L"abbbbbc";
970 assert(std::regex_match(s, m, std::wregex(L"ab{3,5}c", std::regex_constants::awk)));
971 assert(m.size() == 1);
972 assert(!m.prefix().matched);
973 assert(m.prefix().first == s);
974 assert(m.prefix().second == m[0].first);
975 assert(!m.suffix().matched);
976 assert(m.suffix().first == m[0].second);
977 assert(m.suffix().second == m[0].second);
978 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
979 assert(m.position(0) == 0);
980 assert(m.str(0) == s);
984 const wchar_t s[] = L"adefc";
985 assert(!std::regex_match(s, m, std::wregex(L"ab{3,5}c", std::regex_constants::awk)));
986 assert(m.size() == 0);
990 const wchar_t s[] = L"abbbbbbc";
991 assert(!std::regex_match(s, m, std::wregex(L"ab{3,5}c", std::regex_constants::awk)));
992 assert(m.size() == 0);
996 const wchar_t s[] = L"adec";
997 assert(!std::regex_match(s, m, std::wregex(L"a.{3,5}c", std::regex_constants::awk)));
998 assert(m.size() == 0);
1002 const wchar_t s[] = L"adefc";
1003 assert(std::regex_match(s, m, std::wregex(L"a.{3,5}c", std::regex_constants::awk)));
1004 assert(m.size() == 1);
1005 assert(!m.prefix().matched);
1006 assert(m.prefix().first == s);
1007 assert(m.prefix().second == m[0].first);
1008 assert(!m.suffix().matched);
1009 assert(m.suffix().first == m[0].second);
1010 assert(m.suffix().second == m[0].second);
1011 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1012 assert(m.position(0) == 0);
1013 assert(m.str(0) == s);
1017 const wchar_t s[] = L"adefgc";
1018 assert(std::regex_match(s, m, std::wregex(L"a.{3,5}c", std::regex_constants::awk)));
1019 assert(m.size() == 1);
1020 assert(!m.prefix().matched);
1021 assert(m.prefix().first == s);
1022 assert(m.prefix().second == m[0].first);
1023 assert(!m.suffix().matched);
1024 assert(m.suffix().first == m[0].second);
1025 assert(m.suffix().second == m[0].second);
1026 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1027 assert(m.position(0) == 0);
1028 assert(m.str(0) == s);
1032 const wchar_t s[] = L"adefghc";
1033 assert(std::regex_match(s, m, std::wregex(L"a.{3,5}c", std::regex_constants::awk)));
1034 assert(m.size() == 1);
1035 assert(!m.prefix().matched);
1036 assert(m.prefix().first == s);
1037 assert(m.prefix().second == m[0].first);
1038 assert(!m.suffix().matched);
1039 assert(m.suffix().first == m[0].second);
1040 assert(m.suffix().second == m[0].second);
1041 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1042 assert(m.position(0) == 0);
1043 assert(m.str(0) == s);
1047 const wchar_t s[] = L"adefghic";
1048 assert(!std::regex_match(s, m, std::wregex(L"a.{3,5}c", std::regex_constants::awk)));
1049 assert(m.size() == 0);
1053 const wchar_t s[] = L"tournament";
1054 assert(std::regex_match(s, m, std::wregex(L"tour|to|tournament",
1055 std::regex_constants::awk)));
1056 assert(m.size() == 1);
1057 assert(!m.prefix().matched);
1058 assert(m.prefix().first == s);
1059 assert(m.prefix().second == m[0].first);
1060 assert(!m.suffix().matched);
1061 assert(m.suffix().first == m[0].second);
1062 assert(m.suffix().second == m[0].second);
1063 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1064 assert(m.position(0) == 0);
1065 assert(m.str(0) == s);
1069 const wchar_t s[] = L"tournamenttotour";
1070 assert(std::regex_match(s, m, std::wregex(L"(tour|to|tournament)+",
1071 std::regex_constants::awk | std::regex_constants::nosubs)));
1072 assert(m.size() == 1);
1073 assert(!m.prefix().matched);
1074 assert(m.prefix().first == s);
1075 assert(m.prefix().second == m[0].first);
1076 assert(!m.suffix().matched);
1077 assert(m.suffix().first == m[0].second);
1078 assert(m.suffix().second == m[0].second);
1079 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1080 assert(m.position(0) == 0);
1081 assert(m.str(0) == s);
1085 const wchar_t s[] = L"ttotour";
1086 assert(std::regex_match(s, m, std::wregex(L"(tour|to|t)+",
1087 std::regex_constants::awk)));
1088 assert(m.size() == 2);
1089 assert(!m.prefix().matched);
1090 assert(m.prefix().first == s);
1091 assert(m.prefix().second == m[0].first);
1092 assert(!m.suffix().matched);
1093 assert(m.suffix().first == m[0].second);
1094 assert(m.suffix().second == m[0].second);
1095 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1096 assert(m.position(0) == 0);
1097 assert(m.str(0) == s);
1098 assert(m.length(1) == 4);
1099 assert(m.position(1) == 3);
1100 assert(m.str(1) == L"tour");
1104 const wchar_t s[] = L"-ab,ab-";
1105 assert(!std::regex_match(s, m, std::wregex(L"-(.*),\1-", std::regex_constants::awk)));
1106 assert(m.size() == 0);
1110 const wchar_t s[] = L"-ab,ab-";
1111 assert(std::regex_match(s, m, std::wregex(L"-.*,.*-", std::regex_constants::awk)));
1112 assert(m.size() == 1);
1113 assert(!m.prefix().matched);
1114 assert(m.prefix().first == s);
1115 assert(m.prefix().second == m[0].first);
1116 assert(!m.suffix().matched);
1117 assert(m.suffix().first == m[0].second);
1118 assert(m.suffix().second == m[0].second);
1119 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1120 assert(m.position(0) == 0);
1121 assert(m.str(0) == s);
1125 const wchar_t s[] = L"a";
1126 assert(std::regex_match(s, m, std::wregex(L"^[a]$",
1127 std::regex_constants::awk)));
1128 assert(m.size() == 1);
1129 assert(!m.prefix().matched);
1130 assert(m.prefix().first == s);
1131 assert(m.prefix().second == m[0].first);
1132 assert(!m.suffix().matched);
1133 assert(m.suffix().first == m[0].second);
1134 assert(m.suffix().second == m[0].second);
1135 assert(m.length(0) == 1);
1136 assert(m.position(0) == 0);
1137 assert(m.str(0) == L"a");
1141 const wchar_t s[] = L"a";
1142 assert(std::regex_match(s, m, std::wregex(L"^[ab]$",
1143 std::regex_constants::awk)));
1144 assert(m.size() == 1);
1145 assert(!m.prefix().matched);
1146 assert(m.prefix().first == s);
1147 assert(m.prefix().second == m[0].first);
1148 assert(!m.suffix().matched);
1149 assert(m.suffix().first == m[0].second);
1150 assert(m.suffix().second == m[0].second);
1151 assert(m.length(0) == 1);
1152 assert(m.position(0) == 0);
1153 assert(m.str(0) == L"a");
1157 const wchar_t s[] = L"c";
1158 assert(std::regex_match(s, m, std::wregex(L"^[a-f]$",
1159 std::regex_constants::awk)));
1160 assert(m.size() == 1);
1161 assert(!m.prefix().matched);
1162 assert(m.prefix().first == s);
1163 assert(m.prefix().second == m[0].first);
1164 assert(!m.suffix().matched);
1165 assert(m.suffix().first == m[0].second);
1166 assert(m.suffix().second == m[0].second);
1167 assert(m.length(0) == 1);
1168 assert(m.position(0) == 0);
1169 assert(m.str(0) == s);
1173 const wchar_t s[] = L"g";
1174 assert(!std::regex_match(s, m, std::wregex(L"^[a-f]$",
1175 std::regex_constants::awk)));
1176 assert(m.size() == 0);
1180 const wchar_t s[] = L"Iraqi";
1181 assert(!std::regex_match(s, m, std::wregex(L"q[^u]",
1182 std::regex_constants::awk)));
1183 assert(m.size() == 0);
1187 const wchar_t s[] = L"Iraq";
1188 assert(!std::regex_match(s, m, std::wregex(L"q[^u]",
1189 std::regex_constants::awk)));
1190 assert(m.size() == 0);
1194 const wchar_t s[] = L"AmB";
1195 assert(std::regex_match(s, m, std::wregex(L"A[[:lower:]]B",
1196 std::regex_constants::awk)));
1197 assert(m.size() == 1);
1198 assert(!m.prefix().matched);
1199 assert(m.prefix().first == s);
1200 assert(m.prefix().second == m[0].first);
1201 assert(!m.suffix().matched);
1202 assert(m.suffix().first == m[0].second);
1203 assert(m.suffix().second == m[0].second);
1204 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1205 assert(m.position(0) == 0);
1206 assert(m.str(0) == s);
1210 const wchar_t s[] = L"AMB";
1211 assert(!std::regex_match(s, m, std::wregex(L"A[[:lower:]]B",
1212 std::regex_constants::awk)));
1213 assert(m.size() == 0);
1217 const wchar_t s[] = L"AMB";
1218 assert(std::regex_match(s, m, std::wregex(L"A[^[:lower:]]B",
1219 std::regex_constants::awk)));
1220 assert(m.size() == 1);
1221 assert(!m.prefix().matched);
1222 assert(m.prefix().first == s);
1223 assert(m.prefix().second == m[0].first);
1224 assert(!m.suffix().matched);
1225 assert(m.suffix().first == m[0].second);
1226 assert(m.suffix().second == m[0].second);
1227 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1228 assert(m.position(0) == 0);
1229 assert(m.str(0) == s);
1233 const wchar_t s[] = L"AmB";
1234 assert(!std::regex_match(s, m, std::wregex(L"A[^[:lower:]]B",
1235 std::regex_constants::awk)));
1236 assert(m.size() == 0);
1240 const wchar_t s[] = L"A5B";
1241 assert(!std::regex_match(s, m, std::wregex(L"A[^[:lower:]0-9]B",
1242 std::regex_constants::awk)));
1243 assert(m.size() == 0);
1247 const wchar_t s[] = L"A?B";
1248 assert(std::regex_match(s, m, std::wregex(L"A[^[:lower:]0-9]B",
1249 std::regex_constants::awk)));
1250 assert(m.size() == 1);
1251 assert(!m.prefix().matched);
1252 assert(m.prefix().first == s);
1253 assert(m.prefix().second == m[0].first);
1254 assert(!m.suffix().matched);
1255 assert(m.suffix().first == m[0].second);
1256 assert(m.suffix().second == m[0].second);
1257 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1258 assert(m.position(0) == 0);
1259 assert(m.str(0) == s);
1263 const wchar_t s[] = L"-";
1264 assert(std::regex_match(s, m, std::wregex(L"[a[.hyphen.]z]",
1265 std::regex_constants::awk)));
1266 assert(m.size() == 1);
1267 assert(!m.prefix().matched);
1268 assert(m.prefix().first == s);
1269 assert(m.prefix().second == m[0].first);
1270 assert(!m.suffix().matched);
1271 assert(m.suffix().first == m[0].second);
1272 assert(m.suffix().second == m[0].second);
1273 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1274 assert(m.position(0) == 0);
1275 assert(m.str(0) == s);
1279 const wchar_t s[] = L"z";
1280 assert(std::regex_match(s, m, std::wregex(L"[a[.hyphen.]z]",
1281 std::regex_constants::awk)));
1282 assert(m.size() == 1);
1283 assert(!m.prefix().matched);
1284 assert(m.prefix().first == s);
1285 assert(m.prefix().second == m[0].first);
1286 assert(!m.suffix().matched);
1287 assert(m.suffix().first == m[0].second);
1288 assert(m.suffix().second == m[0].second);
1289 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1290 assert(m.position(0) == 0);
1291 assert(m.str(0) == s);
1295 const wchar_t s[] = L"m";
1296 assert(!std::regex_match(s, m, std::wregex(L"[a[.hyphen.]z]",
1297 std::regex_constants::awk)));
1298 assert(m.size() == 0);
1300 std::locale::global(std::locale(LOCALE_cs_CZ_ISO8859_2));
1303 const wchar_t s[] = L"m";
1304 assert(std::regex_match(s, m, std::wregex(L"[a[=M=]z]",
1305 std::regex_constants::awk)));
1306 assert(m.size() == 1);
1307 assert(!m.prefix().matched);
1308 assert(m.prefix().first == s);
1309 assert(m.prefix().second == m[0].first);
1310 assert(!m.suffix().matched);
1311 assert(m.suffix().first == m[0].second);
1312 assert(m.suffix().second == m[0].second);
1313 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1314 assert(m.position(0) == 0);
1315 assert(m.str(0) == s);
1319 const wchar_t s[] = L"Ch";
1320 assert(std::regex_match(s, m, std::wregex(L"[a[.ch.]z]",
1321 std::regex_constants::awk | std::regex_constants::icase)));
1322 assert(m.size() == 1);
1323 assert(!m.prefix().matched);
1324 assert(m.prefix().first == s);
1325 assert(m.prefix().second == m[0].first);
1326 assert(!m.suffix().matched);
1327 assert(m.suffix().first == m[0].second);
1328 assert(m.suffix().second == m[0].second);
1329 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1330 assert(m.position(0) == 0);
1331 assert(m.str(0) == s);
1333 std::locale::global(std::locale("C"));
1336 const wchar_t s[] = L"m";
1337 assert(!std::regex_match(s, m, std::wregex(L"[a[=M=]z]",
1338 std::regex_constants::awk)));
1339 assert(m.size() == 0);
1343 const wchar_t s[] = L"01a45cef9";
1344 assert(!std::regex_match(s, m, std::wregex(L"[ace1-9]*",
1345 std::regex_constants::awk)));
1346 assert(m.size() == 0);
1350 const wchar_t s[] = L"01a45cef9";
1351 assert(!std::regex_match(s, m, std::wregex(L"[ace1-9]+",
1352 std::regex_constants::awk)));
1353 assert(m.size() == 0);
1356 const wchar_t r[] = L"^[-+]?[0-9]+[CF]$";
1357 std::ptrdiff_t sr = std::char_traits<wchar_t>::length(r);
1358 typedef forward_iterator<const wchar_t*> FI;
1359 typedef bidirectional_iterator<const wchar_t*> BI;
1360 std::wregex regex(FI(r), FI(r+sr), std::regex_constants::awk);
1361 std::match_results<BI> m;
1362 const wchar_t s[] = L"-40C";
1363 std::ptrdiff_t ss = std::char_traits<wchar_t>::length(s);
1364 assert(std::regex_match(BI(s), BI(s+ss), m, regex));
1365 assert(m.size() == 1);
1366 assert(!m.prefix().matched);
1367 assert(m.prefix().first == BI(s));
1368 assert(m.prefix().second == m[0].first);
1369 assert(!m.suffix().matched);
1370 assert(m.suffix().first == m[0].second);
1371 assert(m.suffix().second == m[0].second);
1372 assert(m.length(0) == 4);
1373 assert(m.position(0) == 0);
1374 assert(m.str(0) == s);
1378 const wchar_t s[] = L"\n\n\n";
1379 assert(std::regex_match(s, m, std::wregex(L"[\\n]+",
1380 std::regex_constants::awk)));
1381 assert(m.size() == 1);
1382 assert(!m.prefix().matched);
1383 assert(m.prefix().first == s);
1384 assert(m.prefix().second == m[0].first);
1385 assert(!m.suffix().matched);
1386 assert(m.suffix().first == m[0].second);
1387 assert(m.suffix().second == s + std::char_traits<wchar_t>::length(s));
1388 assert(m.length(0) == std::char_traits<wchar_t>::length(s));
1389 assert(m.position(0) == 0);
1390 assert(m.str(0) == s);