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// <string>
10
11// template<class InputIterator>
12// basic_string&
13// replace(const_iterator i1, const_iterator i2, InputIterator j1, InputIterator j2); // constexpr since C++20
14
15#include <string>
16#include <iterator>
17#include <cassert>
18
19#include "test_macros.h"
20#include "min_allocator.h"
21#include "test_iterators.h"
22
23template <class S, class It>
24TEST_CONSTEXPR_CXX20 void test(S s, typename S::size_type pos1, typename S::size_type n1, It f, It l, S expected) {
25 typename S::size_type old_size = s.size();
26 typename S::const_iterator first = s.begin() + pos1;
27 typename S::const_iterator last = s.begin() + pos1 + n1;
28 typename S::size_type xlen = last - first;
29 s.replace(first, last, f, l);
30 LIBCPP_ASSERT(s.__invariants());
31 assert(s == expected);
32 typename S::size_type rlen = std::distance(f, l);
33 assert(s.size() == old_size - xlen + rlen);
34}
35
36#ifndef TEST_HAS_NO_EXCEPTIONS
37struct Widget {
38 operator char() const { throw 42; }
39};
40
41template <class S, class It>
42TEST_CONSTEXPR_CXX20 void test_exceptions(S s, typename S::size_type pos1, typename S::size_type n1, It f, It l) {
43 typename S::const_iterator first = s.begin() + pos1;
44 typename S::const_iterator last = s.begin() + pos1 + n1;
45
46 S original = s;
47 typename S::iterator begin = s.begin();
48 typename S::iterator end = s.end();
49
50 try {
51 s.replace(first, last, f, l);
52 assert(false);
53 } catch (...) {
54 }
55
56 // Part of "no effects" is that iterators and pointers
57 // into the string must not have been invalidated.
58 LIBCPP_ASSERT(s.__invariants());
59 assert(s == original);
60 assert(s.begin() == begin);
61 assert(s.end() == end);
62}
63#endif
64
65TEST_CONSTEXPR const char* str = "12345678901234567890";
66
67template <class S>
68TEST_CONSTEXPR_CXX20 bool test0() {
69 test(S(""), 0, 0, str, str + 0, S(""));
70 test(S(""), 0, 0, str, str + 0, S(""));
71 test(S(""), 0, 0, str, str + 1, S("1"));
72 test(S(""), 0, 0, str, str + 2, S("12"));
73 test(S(""), 0, 0, str, str + 4, S("1234"));
74 test(S(""), 0, 0, str, str + 5, S("12345"));
75 test(S(""), 0, 0, str, str + 0, S(""));
76 test(S(""), 0, 0, str, str + 1, S("1"));
77 test(S(""), 0, 0, str, str + 5, S("12345"));
78 test(S(""), 0, 0, str, str + 9, S("123456789"));
79 test(S(""), 0, 0, str, str + 10, S("1234567890"));
80 test(S(""), 0, 0, str, str + 0, S(""));
81 test(S(""), 0, 0, str, str + 1, S("1"));
82 test(S(""), 0, 0, str, str + 10, S("1234567890"));
83 test(S(""), 0, 0, str, str + 19, S("1234567890123456789"));
84 test(S(""), 0, 0, str, str + 20, S("12345678901234567890"));
85 test(S("abcde"), 0, 0, str, str + 0, S("abcde"));
86 test(S("abcde"), 0, 0, str, str + 0, S("abcde"));
87 test(S("abcde"), 0, 0, str, str + 1, S("1abcde"));
88 test(S("abcde"), 0, 0, str, str + 2, S("12abcde"));
89 test(S("abcde"), 0, 0, str, str + 4, S("1234abcde"));
90 test(S("abcde"), 0, 0, str, str + 5, S("12345abcde"));
91 test(S("abcde"), 0, 0, str, str + 0, S("abcde"));
92 test(S("abcde"), 0, 0, str, str + 1, S("1abcde"));
93 test(S("abcde"), 0, 0, str, str + 5, S("12345abcde"));
94 test(S("abcde"), 0, 0, str, str + 9, S("123456789abcde"));
95 test(S("abcde"), 0, 0, str, str + 10, S("1234567890abcde"));
96 test(S("abcde"), 0, 0, str, str + 0, S("abcde"));
97 test(S("abcde"), 0, 0, str, str + 1, S("1abcde"));
98 test(S("abcde"), 0, 0, str, str + 10, S("1234567890abcde"));
99 test(S("abcde"), 0, 0, str, str + 19, S("1234567890123456789abcde"));
100 test(S("abcde"), 0, 0, str, str + 20, S("12345678901234567890abcde"));
101 test(S("abcde"), 0, 1, str, str + 0, S("bcde"));
102 test(S("abcde"), 0, 1, str, str + 0, S("bcde"));
103 test(S("abcde"), 0, 1, str, str + 1, S("1bcde"));
104 test(S("abcde"), 0, 1, str, str + 2, S("12bcde"));
105 test(S("abcde"), 0, 1, str, str + 4, S("1234bcde"));
106 test(S("abcde"), 0, 1, str, str + 5, S("12345bcde"));
107 test(S("abcde"), 0, 1, str, str + 0, S("bcde"));
108 test(S("abcde"), 0, 1, str, str + 1, S("1bcde"));
109 test(S("abcde"), 0, 1, str, str + 5, S("12345bcde"));
110 test(S("abcde"), 0, 1, str, str + 9, S("123456789bcde"));
111 test(S("abcde"), 0, 1, str, str + 10, S("1234567890bcde"));
112 test(S("abcde"), 0, 1, str, str + 0, S("bcde"));
113 test(S("abcde"), 0, 1, str, str + 1, S("1bcde"));
114 test(S("abcde"), 0, 1, str, str + 10, S("1234567890bcde"));
115 test(S("abcde"), 0, 1, str, str + 19, S("1234567890123456789bcde"));
116 test(S("abcde"), 0, 1, str, str + 20, S("12345678901234567890bcde"));
117 test(S("abcde"), 0, 2, str, str + 0, S("cde"));
118 test(S("abcde"), 0, 2, str, str + 0, S("cde"));
119 test(S("abcde"), 0, 2, str, str + 1, S("1cde"));
120 test(S("abcde"), 0, 2, str, str + 2, S("12cde"));
121 test(S("abcde"), 0, 2, str, str + 4, S("1234cde"));
122 test(S("abcde"), 0, 2, str, str + 5, S("12345cde"));
123 test(S("abcde"), 0, 2, str, str + 0, S("cde"));
124 test(S("abcde"), 0, 2, str, str + 1, S("1cde"));
125 test(S("abcde"), 0, 2, str, str + 5, S("12345cde"));
126 test(S("abcde"), 0, 2, str, str + 9, S("123456789cde"));
127 test(S("abcde"), 0, 2, str, str + 10, S("1234567890cde"));
128 test(S("abcde"), 0, 2, str, str + 0, S("cde"));
129 test(S("abcde"), 0, 2, str, str + 1, S("1cde"));
130 test(S("abcde"), 0, 2, str, str + 10, S("1234567890cde"));
131 test(S("abcde"), 0, 2, str, str + 19, S("1234567890123456789cde"));
132 test(S("abcde"), 0, 2, str, str + 20, S("12345678901234567890cde"));
133 test(S("abcde"), 0, 4, str, str + 0, S("e"));
134 test(S("abcde"), 0, 4, str, str + 0, S("e"));
135 test(S("abcde"), 0, 4, str, str + 1, S("1e"));
136 test(S("abcde"), 0, 4, str, str + 2, S("12e"));
137 test(S("abcde"), 0, 4, str, str + 4, S("1234e"));
138 test(S("abcde"), 0, 4, str, str + 5, S("12345e"));
139 test(S("abcde"), 0, 4, str, str + 0, S("e"));
140 test(S("abcde"), 0, 4, str, str + 1, S("1e"));
141 test(S("abcde"), 0, 4, str, str + 5, S("12345e"));
142 test(S("abcde"), 0, 4, str, str + 9, S("123456789e"));
143 test(S("abcde"), 0, 4, str, str + 10, S("1234567890e"));
144 test(S("abcde"), 0, 4, str, str + 0, S("e"));
145 test(S("abcde"), 0, 4, str, str + 1, S("1e"));
146 test(S("abcde"), 0, 4, str, str + 10, S("1234567890e"));
147 test(S("abcde"), 0, 4, str, str + 19, S("1234567890123456789e"));
148 test(S("abcde"), 0, 4, str, str + 20, S("12345678901234567890e"));
149 test(S("abcde"), 0, 5, str, str + 0, S(""));
150 test(S("abcde"), 0, 5, str, str + 0, S(""));
151 test(S("abcde"), 0, 5, str, str + 1, S("1"));
152 test(S("abcde"), 0, 5, str, str + 2, S("12"));
153 test(S("abcde"), 0, 5, str, str + 4, S("1234"));
154 test(S("abcde"), 0, 5, str, str + 5, S("12345"));
155 test(S("abcde"), 0, 5, str, str + 0, S(""));
156 test(S("abcde"), 0, 5, str, str + 1, S("1"));
157 test(S("abcde"), 0, 5, str, str + 5, S("12345"));
158 test(S("abcde"), 0, 5, str, str + 9, S("123456789"));
159 test(S("abcde"), 0, 5, str, str + 10, S("1234567890"));
160 test(S("abcde"), 0, 5, str, str + 0, S(""));
161 test(S("abcde"), 0, 5, str, str + 1, S("1"));
162 test(S("abcde"), 0, 5, str, str + 10, S("1234567890"));
163 test(S("abcde"), 0, 5, str, str + 19, S("1234567890123456789"));
164 test(S("abcde"), 0, 5, str, str + 20, S("12345678901234567890"));
165 test(S("abcde"), 1, 0, str, str + 0, S("abcde"));
166 test(S("abcde"), 1, 0, str, str + 0, S("abcde"));
167 test(S("abcde"), 1, 0, str, str + 1, S("a1bcde"));
168 test(S("abcde"), 1, 0, str, str + 2, S("a12bcde"));
169
170 return true;
171}
172
173template <class S>
174TEST_CONSTEXPR_CXX20 bool test1() {
175 test(S("abcde"), 1, 0, str, str + 4, S("a1234bcde"));
176 test(S("abcde"), 1, 0, str, str + 5, S("a12345bcde"));
177 test(S("abcde"), 1, 0, str, str + 0, S("abcde"));
178 test(S("abcde"), 1, 0, str, str + 1, S("a1bcde"));
179 test(S("abcde"), 1, 0, str, str + 5, S("a12345bcde"));
180 test(S("abcde"), 1, 0, str, str + 9, S("a123456789bcde"));
181 test(S("abcde"), 1, 0, str, str + 10, S("a1234567890bcde"));
182 test(S("abcde"), 1, 0, str, str + 0, S("abcde"));
183 test(S("abcde"), 1, 0, str, str + 1, S("a1bcde"));
184 test(S("abcde"), 1, 0, str, str + 10, S("a1234567890bcde"));
185 test(S("abcde"), 1, 0, str, str + 19, S("a1234567890123456789bcde"));
186 test(S("abcde"), 1, 0, str, str + 20, S("a12345678901234567890bcde"));
187 test(S("abcde"), 1, 1, str, str + 0, S("acde"));
188 test(S("abcde"), 1, 1, str, str + 0, S("acde"));
189 test(S("abcde"), 1, 1, str, str + 1, S("a1cde"));
190 test(S("abcde"), 1, 1, str, str + 2, S("a12cde"));
191 test(S("abcde"), 1, 1, str, str + 4, S("a1234cde"));
192 test(S("abcde"), 1, 1, str, str + 5, S("a12345cde"));
193 test(S("abcde"), 1, 1, str, str + 0, S("acde"));
194 test(S("abcde"), 1, 1, str, str + 1, S("a1cde"));
195 test(S("abcde"), 1, 1, str, str + 5, S("a12345cde"));
196 test(S("abcde"), 1, 1, str, str + 9, S("a123456789cde"));
197 test(S("abcde"), 1, 1, str, str + 10, S("a1234567890cde"));
198 test(S("abcde"), 1, 1, str, str + 0, S("acde"));
199 test(S("abcde"), 1, 1, str, str + 1, S("a1cde"));
200 test(S("abcde"), 1, 1, str, str + 10, S("a1234567890cde"));
201 test(S("abcde"), 1, 1, str, str + 19, S("a1234567890123456789cde"));
202 test(S("abcde"), 1, 1, str, str + 20, S("a12345678901234567890cde"));
203 test(S("abcde"), 1, 2, str, str + 0, S("ade"));
204 test(S("abcde"), 1, 2, str, str + 0, S("ade"));
205 test(S("abcde"), 1, 2, str, str + 1, S("a1de"));
206 test(S("abcde"), 1, 2, str, str + 2, S("a12de"));
207 test(S("abcde"), 1, 2, str, str + 4, S("a1234de"));
208 test(S("abcde"), 1, 2, str, str + 5, S("a12345de"));
209 test(S("abcde"), 1, 2, str, str + 0, S("ade"));
210 test(S("abcde"), 1, 2, str, str + 1, S("a1de"));
211 test(S("abcde"), 1, 2, str, str + 5, S("a12345de"));
212 test(S("abcde"), 1, 2, str, str + 9, S("a123456789de"));
213 test(S("abcde"), 1, 2, str, str + 10, S("a1234567890de"));
214 test(S("abcde"), 1, 2, str, str + 0, S("ade"));
215 test(S("abcde"), 1, 2, str, str + 1, S("a1de"));
216 test(S("abcde"), 1, 2, str, str + 10, S("a1234567890de"));
217 test(S("abcde"), 1, 2, str, str + 19, S("a1234567890123456789de"));
218 test(S("abcde"), 1, 2, str, str + 20, S("a12345678901234567890de"));
219 test(S("abcde"), 1, 3, str, str + 0, S("ae"));
220 test(S("abcde"), 1, 3, str, str + 0, S("ae"));
221 test(S("abcde"), 1, 3, str, str + 1, S("a1e"));
222 test(S("abcde"), 1, 3, str, str + 2, S("a12e"));
223 test(S("abcde"), 1, 3, str, str + 4, S("a1234e"));
224 test(S("abcde"), 1, 3, str, str + 5, S("a12345e"));
225 test(S("abcde"), 1, 3, str, str + 0, S("ae"));
226 test(S("abcde"), 1, 3, str, str + 1, S("a1e"));
227 test(S("abcde"), 1, 3, str, str + 5, S("a12345e"));
228 test(S("abcde"), 1, 3, str, str + 9, S("a123456789e"));
229 test(S("abcde"), 1, 3, str, str + 10, S("a1234567890e"));
230 test(S("abcde"), 1, 3, str, str + 0, S("ae"));
231 test(S("abcde"), 1, 3, str, str + 1, S("a1e"));
232 test(S("abcde"), 1, 3, str, str + 10, S("a1234567890e"));
233 test(S("abcde"), 1, 3, str, str + 19, S("a1234567890123456789e"));
234 test(S("abcde"), 1, 3, str, str + 20, S("a12345678901234567890e"));
235 test(S("abcde"), 1, 4, str, str + 0, S("a"));
236 test(S("abcde"), 1, 4, str, str + 0, S("a"));
237 test(S("abcde"), 1, 4, str, str + 1, S("a1"));
238 test(S("abcde"), 1, 4, str, str + 2, S("a12"));
239 test(S("abcde"), 1, 4, str, str + 4, S("a1234"));
240 test(S("abcde"), 1, 4, str, str + 5, S("a12345"));
241 test(S("abcde"), 1, 4, str, str + 0, S("a"));
242 test(S("abcde"), 1, 4, str, str + 1, S("a1"));
243 test(S("abcde"), 1, 4, str, str + 5, S("a12345"));
244 test(S("abcde"), 1, 4, str, str + 9, S("a123456789"));
245 test(S("abcde"), 1, 4, str, str + 10, S("a1234567890"));
246 test(S("abcde"), 1, 4, str, str + 0, S("a"));
247 test(S("abcde"), 1, 4, str, str + 1, S("a1"));
248 test(S("abcde"), 1, 4, str, str + 10, S("a1234567890"));
249 test(S("abcde"), 1, 4, str, str + 19, S("a1234567890123456789"));
250 test(S("abcde"), 1, 4, str, str + 20, S("a12345678901234567890"));
251 test(S("abcde"), 2, 0, str, str + 0, S("abcde"));
252 test(S("abcde"), 2, 0, str, str + 0, S("abcde"));
253 test(S("abcde"), 2, 0, str, str + 1, S("ab1cde"));
254 test(S("abcde"), 2, 0, str, str + 2, S("ab12cde"));
255 test(S("abcde"), 2, 0, str, str + 4, S("ab1234cde"));
256 test(S("abcde"), 2, 0, str, str + 5, S("ab12345cde"));
257 test(S("abcde"), 2, 0, str, str + 0, S("abcde"));
258 test(S("abcde"), 2, 0, str, str + 1, S("ab1cde"));
259 test(S("abcde"), 2, 0, str, str + 5, S("ab12345cde"));
260 test(S("abcde"), 2, 0, str, str + 9, S("ab123456789cde"));
261 test(S("abcde"), 2, 0, str, str + 10, S("ab1234567890cde"));
262 test(S("abcde"), 2, 0, str, str + 0, S("abcde"));
263 test(S("abcde"), 2, 0, str, str + 1, S("ab1cde"));
264 test(S("abcde"), 2, 0, str, str + 10, S("ab1234567890cde"));
265 test(S("abcde"), 2, 0, str, str + 19, S("ab1234567890123456789cde"));
266 test(S("abcde"), 2, 0, str, str + 20, S("ab12345678901234567890cde"));
267 test(S("abcde"), 2, 1, str, str + 0, S("abde"));
268 test(S("abcde"), 2, 1, str, str + 0, S("abde"));
269 test(S("abcde"), 2, 1, str, str + 1, S("ab1de"));
270 test(S("abcde"), 2, 1, str, str + 2, S("ab12de"));
271 test(S("abcde"), 2, 1, str, str + 4, S("ab1234de"));
272 test(S("abcde"), 2, 1, str, str + 5, S("ab12345de"));
273 test(S("abcde"), 2, 1, str, str + 0, S("abde"));
274 test(S("abcde"), 2, 1, str, str + 1, S("ab1de"));
275
276 return true;
277}
278
279template <class S>
280TEST_CONSTEXPR_CXX20 bool test2() {
281 test(S("abcde"), 2, 1, str, str + 5, S("ab12345de"));
282 test(S("abcde"), 2, 1, str, str + 9, S("ab123456789de"));
283 test(S("abcde"), 2, 1, str, str + 10, S("ab1234567890de"));
284 test(S("abcde"), 2, 1, str, str + 0, S("abde"));
285 test(S("abcde"), 2, 1, str, str + 1, S("ab1de"));
286 test(S("abcde"), 2, 1, str, str + 10, S("ab1234567890de"));
287 test(S("abcde"), 2, 1, str, str + 19, S("ab1234567890123456789de"));
288 test(S("abcde"), 2, 1, str, str + 20, S("ab12345678901234567890de"));
289 test(S("abcde"), 2, 2, str, str + 0, S("abe"));
290 test(S("abcde"), 2, 2, str, str + 0, S("abe"));
291 test(S("abcde"), 2, 2, str, str + 1, S("ab1e"));
292 test(S("abcde"), 2, 2, str, str + 2, S("ab12e"));
293 test(S("abcde"), 2, 2, str, str + 4, S("ab1234e"));
294 test(S("abcde"), 2, 2, str, str + 5, S("ab12345e"));
295 test(S("abcde"), 2, 2, str, str + 0, S("abe"));
296 test(S("abcde"), 2, 2, str, str + 1, S("ab1e"));
297 test(S("abcde"), 2, 2, str, str + 5, S("ab12345e"));
298 test(S("abcde"), 2, 2, str, str + 9, S("ab123456789e"));
299 test(S("abcde"), 2, 2, str, str + 10, S("ab1234567890e"));
300 test(S("abcde"), 2, 2, str, str + 0, S("abe"));
301 test(S("abcde"), 2, 2, str, str + 1, S("ab1e"));
302 test(S("abcde"), 2, 2, str, str + 10, S("ab1234567890e"));
303 test(S("abcde"), 2, 2, str, str + 19, S("ab1234567890123456789e"));
304 test(S("abcde"), 2, 2, str, str + 20, S("ab12345678901234567890e"));
305 test(S("abcde"), 2, 3, str, str + 0, S("ab"));
306 test(S("abcde"), 2, 3, str, str + 0, S("ab"));
307 test(S("abcde"), 2, 3, str, str + 1, S("ab1"));
308 test(S("abcde"), 2, 3, str, str + 2, S("ab12"));
309 test(S("abcde"), 2, 3, str, str + 4, S("ab1234"));
310 test(S("abcde"), 2, 3, str, str + 5, S("ab12345"));
311 test(S("abcde"), 2, 3, str, str + 0, S("ab"));
312 test(S("abcde"), 2, 3, str, str + 1, S("ab1"));
313 test(S("abcde"), 2, 3, str, str + 5, S("ab12345"));
314 test(S("abcde"), 2, 3, str, str + 9, S("ab123456789"));
315 test(S("abcde"), 2, 3, str, str + 10, S("ab1234567890"));
316 test(S("abcde"), 2, 3, str, str + 0, S("ab"));
317 test(S("abcde"), 2, 3, str, str + 1, S("ab1"));
318 test(S("abcde"), 2, 3, str, str + 10, S("ab1234567890"));
319 test(S("abcde"), 2, 3, str, str + 19, S("ab1234567890123456789"));
320 test(S("abcde"), 2, 3, str, str + 20, S("ab12345678901234567890"));
321 test(S("abcde"), 4, 0, str, str + 0, S("abcde"));
322 test(S("abcde"), 4, 0, str, str + 0, S("abcde"));
323 test(S("abcde"), 4, 0, str, str + 1, S("abcd1e"));
324 test(S("abcde"), 4, 0, str, str + 2, S("abcd12e"));
325 test(S("abcde"), 4, 0, str, str + 4, S("abcd1234e"));
326 test(S("abcde"), 4, 0, str, str + 5, S("abcd12345e"));
327 test(S("abcde"), 4, 0, str, str + 0, S("abcde"));
328 test(S("abcde"), 4, 0, str, str + 1, S("abcd1e"));
329 test(S("abcde"), 4, 0, str, str + 5, S("abcd12345e"));
330 test(S("abcde"), 4, 0, str, str + 9, S("abcd123456789e"));
331 test(S("abcde"), 4, 0, str, str + 10, S("abcd1234567890e"));
332 test(S("abcde"), 4, 0, str, str + 0, S("abcde"));
333 test(S("abcde"), 4, 0, str, str + 1, S("abcd1e"));
334 test(S("abcde"), 4, 0, str, str + 10, S("abcd1234567890e"));
335 test(S("abcde"), 4, 0, str, str + 19, S("abcd1234567890123456789e"));
336 test(S("abcde"), 4, 0, str, str + 20, S("abcd12345678901234567890e"));
337 test(S("abcde"), 4, 1, str, str + 0, S("abcd"));
338 test(S("abcde"), 4, 1, str, str + 0, S("abcd"));
339 test(S("abcde"), 4, 1, str, str + 1, S("abcd1"));
340 test(S("abcde"), 4, 1, str, str + 2, S("abcd12"));
341 test(S("abcde"), 4, 1, str, str + 4, S("abcd1234"));
342 test(S("abcde"), 4, 1, str, str + 5, S("abcd12345"));
343 test(S("abcde"), 4, 1, str, str + 0, S("abcd"));
344 test(S("abcde"), 4, 1, str, str + 1, S("abcd1"));
345 test(S("abcde"), 4, 1, str, str + 5, S("abcd12345"));
346 test(S("abcde"), 4, 1, str, str + 9, S("abcd123456789"));
347 test(S("abcde"), 4, 1, str, str + 10, S("abcd1234567890"));
348 test(S("abcde"), 4, 1, str, str + 0, S("abcd"));
349 test(S("abcde"), 4, 1, str, str + 1, S("abcd1"));
350 test(S("abcde"), 4, 1, str, str + 10, S("abcd1234567890"));
351 test(S("abcde"), 4, 1, str, str + 19, S("abcd1234567890123456789"));
352 test(S("abcde"), 4, 1, str, str + 20, S("abcd12345678901234567890"));
353 test(S("abcde"), 5, 0, str, str + 0, S("abcde"));
354 test(S("abcde"), 5, 0, str, str + 0, S("abcde"));
355 test(S("abcde"), 5, 0, str, str + 1, S("abcde1"));
356 test(S("abcde"), 5, 0, str, str + 2, S("abcde12"));
357 test(S("abcde"), 5, 0, str, str + 4, S("abcde1234"));
358 test(S("abcde"), 5, 0, str, str + 5, S("abcde12345"));
359 test(S("abcde"), 5, 0, str, str + 0, S("abcde"));
360 test(S("abcde"), 5, 0, str, str + 1, S("abcde1"));
361 test(S("abcde"), 5, 0, str, str + 5, S("abcde12345"));
362 test(S("abcde"), 5, 0, str, str + 9, S("abcde123456789"));
363 test(S("abcde"), 5, 0, str, str + 10, S("abcde1234567890"));
364 test(S("abcde"), 5, 0, str, str + 0, S("abcde"));
365 test(S("abcde"), 5, 0, str, str + 1, S("abcde1"));
366 test(S("abcde"), 5, 0, str, str + 10, S("abcde1234567890"));
367 test(S("abcde"), 5, 0, str, str + 19, S("abcde1234567890123456789"));
368 test(S("abcde"), 5, 0, str, str + 20, S("abcde12345678901234567890"));
369 test(S("abcdefghij"), 0, 0, str, str + 0, S("abcdefghij"));
370 test(S("abcdefghij"), 0, 0, str, str + 0, S("abcdefghij"));
371 test(S("abcdefghij"), 0, 0, str, str + 1, S("1abcdefghij"));
372 test(S("abcdefghij"), 0, 0, str, str + 2, S("12abcdefghij"));
373 test(S("abcdefghij"), 0, 0, str, str + 4, S("1234abcdefghij"));
374 test(S("abcdefghij"), 0, 0, str, str + 5, S("12345abcdefghij"));
375 test(S("abcdefghij"), 0, 0, str, str + 0, S("abcdefghij"));
376 test(S("abcdefghij"), 0, 0, str, str + 1, S("1abcdefghij"));
377 test(S("abcdefghij"), 0, 0, str, str + 5, S("12345abcdefghij"));
378 test(S("abcdefghij"), 0, 0, str, str + 9, S("123456789abcdefghij"));
379 test(S("abcdefghij"), 0, 0, str, str + 10, S("1234567890abcdefghij"));
380 test(S("abcdefghij"), 0, 0, str, str + 0, S("abcdefghij"));
381
382 return true;
383}
384
385template <class S>
386TEST_CONSTEXPR_CXX20 bool test3() {
387 test(S("abcdefghij"), 0, 0, str, str + 1, S("1abcdefghij"));
388 test(S("abcdefghij"), 0, 0, str, str + 10, S("1234567890abcdefghij"));
389 test(S("abcdefghij"), 0, 0, str, str + 19, S("1234567890123456789abcdefghij"));
390 test(S("abcdefghij"), 0, 0, str, str + 20, S("12345678901234567890abcdefghij"));
391 test(S("abcdefghij"), 0, 1, str, str + 0, S("bcdefghij"));
392 test(S("abcdefghij"), 0, 1, str, str + 0, S("bcdefghij"));
393 test(S("abcdefghij"), 0, 1, str, str + 1, S("1bcdefghij"));
394 test(S("abcdefghij"), 0, 1, str, str + 2, S("12bcdefghij"));
395 test(S("abcdefghij"), 0, 1, str, str + 4, S("1234bcdefghij"));
396 test(S("abcdefghij"), 0, 1, str, str + 5, S("12345bcdefghij"));
397 test(S("abcdefghij"), 0, 1, str, str + 0, S("bcdefghij"));
398 test(S("abcdefghij"), 0, 1, str, str + 1, S("1bcdefghij"));
399 test(S("abcdefghij"), 0, 1, str, str + 5, S("12345bcdefghij"));
400 test(S("abcdefghij"), 0, 1, str, str + 9, S("123456789bcdefghij"));
401 test(S("abcdefghij"), 0, 1, str, str + 10, S("1234567890bcdefghij"));
402 test(S("abcdefghij"), 0, 1, str, str + 0, S("bcdefghij"));
403 test(S("abcdefghij"), 0, 1, str, str + 1, S("1bcdefghij"));
404 test(S("abcdefghij"), 0, 1, str, str + 10, S("1234567890bcdefghij"));
405 test(S("abcdefghij"), 0, 1, str, str + 19, S("1234567890123456789bcdefghij"));
406 test(S("abcdefghij"), 0, 1, str, str + 20, S("12345678901234567890bcdefghij"));
407 test(S("abcdefghij"), 0, 5, str, str + 0, S("fghij"));
408 test(S("abcdefghij"), 0, 5, str, str + 0, S("fghij"));
409 test(S("abcdefghij"), 0, 5, str, str + 1, S("1fghij"));
410 test(S("abcdefghij"), 0, 5, str, str + 2, S("12fghij"));
411 test(S("abcdefghij"), 0, 5, str, str + 4, S("1234fghij"));
412 test(S("abcdefghij"), 0, 5, str, str + 5, S("12345fghij"));
413 test(S("abcdefghij"), 0, 5, str, str + 0, S("fghij"));
414 test(S("abcdefghij"), 0, 5, str, str + 1, S("1fghij"));
415 test(S("abcdefghij"), 0, 5, str, str + 5, S("12345fghij"));
416 test(S("abcdefghij"), 0, 5, str, str + 9, S("123456789fghij"));
417 test(S("abcdefghij"), 0, 5, str, str + 10, S("1234567890fghij"));
418 test(S("abcdefghij"), 0, 5, str, str + 0, S("fghij"));
419 test(S("abcdefghij"), 0, 5, str, str + 1, S("1fghij"));
420 test(S("abcdefghij"), 0, 5, str, str + 10, S("1234567890fghij"));
421 test(S("abcdefghij"), 0, 5, str, str + 19, S("1234567890123456789fghij"));
422 test(S("abcdefghij"), 0, 5, str, str + 20, S("12345678901234567890fghij"));
423 test(S("abcdefghij"), 0, 9, str, str + 0, S("j"));
424 test(S("abcdefghij"), 0, 9, str, str + 0, S("j"));
425 test(S("abcdefghij"), 0, 9, str, str + 1, S("1j"));
426 test(S("abcdefghij"), 0, 9, str, str + 2, S("12j"));
427 test(S("abcdefghij"), 0, 9, str, str + 4, S("1234j"));
428 test(S("abcdefghij"), 0, 9, str, str + 5, S("12345j"));
429 test(S("abcdefghij"), 0, 9, str, str + 0, S("j"));
430 test(S("abcdefghij"), 0, 9, str, str + 1, S("1j"));
431 test(S("abcdefghij"), 0, 9, str, str + 5, S("12345j"));
432 test(S("abcdefghij"), 0, 9, str, str + 9, S("123456789j"));
433 test(S("abcdefghij"), 0, 9, str, str + 10, S("1234567890j"));
434 test(S("abcdefghij"), 0, 9, str, str + 0, S("j"));
435 test(S("abcdefghij"), 0, 9, str, str + 1, S("1j"));
436 test(S("abcdefghij"), 0, 9, str, str + 10, S("1234567890j"));
437 test(S("abcdefghij"), 0, 9, str, str + 19, S("1234567890123456789j"));
438 test(S("abcdefghij"), 0, 9, str, str + 20, S("12345678901234567890j"));
439 test(S("abcdefghij"), 0, 10, str, str + 0, S(""));
440 test(S("abcdefghij"), 0, 10, str, str + 0, S(""));
441 test(S("abcdefghij"), 0, 10, str, str + 1, S("1"));
442 test(S("abcdefghij"), 0, 10, str, str + 2, S("12"));
443 test(S("abcdefghij"), 0, 10, str, str + 4, S("1234"));
444 test(S("abcdefghij"), 0, 10, str, str + 5, S("12345"));
445 test(S("abcdefghij"), 0, 10, str, str + 0, S(""));
446 test(S("abcdefghij"), 0, 10, str, str + 1, S("1"));
447 test(S("abcdefghij"), 0, 10, str, str + 5, S("12345"));
448 test(S("abcdefghij"), 0, 10, str, str + 9, S("123456789"));
449 test(S("abcdefghij"), 0, 10, str, str + 10, S("1234567890"));
450 test(S("abcdefghij"), 0, 10, str, str + 0, S(""));
451 test(S("abcdefghij"), 0, 10, str, str + 1, S("1"));
452 test(S("abcdefghij"), 0, 10, str, str + 10, S("1234567890"));
453 test(S("abcdefghij"), 0, 10, str, str + 19, S("1234567890123456789"));
454 test(S("abcdefghij"), 0, 10, str, str + 20, S("12345678901234567890"));
455 test(S("abcdefghij"), 1, 0, str, str + 0, S("abcdefghij"));
456 test(S("abcdefghij"), 1, 0, str, str + 0, S("abcdefghij"));
457 test(S("abcdefghij"), 1, 0, str, str + 1, S("a1bcdefghij"));
458 test(S("abcdefghij"), 1, 0, str, str + 2, S("a12bcdefghij"));
459 test(S("abcdefghij"), 1, 0, str, str + 4, S("a1234bcdefghij"));
460 test(S("abcdefghij"), 1, 0, str, str + 5, S("a12345bcdefghij"));
461 test(S("abcdefghij"), 1, 0, str, str + 0, S("abcdefghij"));
462 test(S("abcdefghij"), 1, 0, str, str + 1, S("a1bcdefghij"));
463 test(S("abcdefghij"), 1, 0, str, str + 5, S("a12345bcdefghij"));
464 test(S("abcdefghij"), 1, 0, str, str + 9, S("a123456789bcdefghij"));
465 test(S("abcdefghij"), 1, 0, str, str + 10, S("a1234567890bcdefghij"));
466 test(S("abcdefghij"), 1, 0, str, str + 0, S("abcdefghij"));
467 test(S("abcdefghij"), 1, 0, str, str + 1, S("a1bcdefghij"));
468 test(S("abcdefghij"), 1, 0, str, str + 10, S("a1234567890bcdefghij"));
469 test(S("abcdefghij"), 1, 0, str, str + 19, S("a1234567890123456789bcdefghij"));
470 test(S("abcdefghij"), 1, 0, str, str + 20, S("a12345678901234567890bcdefghij"));
471 test(S("abcdefghij"), 1, 1, str, str + 0, S("acdefghij"));
472 test(S("abcdefghij"), 1, 1, str, str + 0, S("acdefghij"));
473 test(S("abcdefghij"), 1, 1, str, str + 1, S("a1cdefghij"));
474 test(S("abcdefghij"), 1, 1, str, str + 2, S("a12cdefghij"));
475 test(S("abcdefghij"), 1, 1, str, str + 4, S("a1234cdefghij"));
476 test(S("abcdefghij"), 1, 1, str, str + 5, S("a12345cdefghij"));
477 test(S("abcdefghij"), 1, 1, str, str + 0, S("acdefghij"));
478 test(S("abcdefghij"), 1, 1, str, str + 1, S("a1cdefghij"));
479 test(S("abcdefghij"), 1, 1, str, str + 5, S("a12345cdefghij"));
480 test(S("abcdefghij"), 1, 1, str, str + 9, S("a123456789cdefghij"));
481 test(S("abcdefghij"), 1, 1, str, str + 10, S("a1234567890cdefghij"));
482 test(S("abcdefghij"), 1, 1, str, str + 0, S("acdefghij"));
483 test(S("abcdefghij"), 1, 1, str, str + 1, S("a1cdefghij"));
484 test(S("abcdefghij"), 1, 1, str, str + 10, S("a1234567890cdefghij"));
485 test(S("abcdefghij"), 1, 1, str, str + 19, S("a1234567890123456789cdefghij"));
486 test(S("abcdefghij"), 1, 1, str, str + 20, S("a12345678901234567890cdefghij"));
487
488 return true;
489}
490
491template <class S>
492TEST_CONSTEXPR_CXX20 bool test4() {
493 test(S("abcdefghij"), 1, 4, str, str + 0, S("afghij"));
494 test(S("abcdefghij"), 1, 4, str, str + 0, S("afghij"));
495 test(S("abcdefghij"), 1, 4, str, str + 1, S("a1fghij"));
496 test(S("abcdefghij"), 1, 4, str, str + 2, S("a12fghij"));
497 test(S("abcdefghij"), 1, 4, str, str + 4, S("a1234fghij"));
498 test(S("abcdefghij"), 1, 4, str, str + 5, S("a12345fghij"));
499 test(S("abcdefghij"), 1, 4, str, str + 0, S("afghij"));
500 test(S("abcdefghij"), 1, 4, str, str + 1, S("a1fghij"));
501 test(S("abcdefghij"), 1, 4, str, str + 5, S("a12345fghij"));
502 test(S("abcdefghij"), 1, 4, str, str + 9, S("a123456789fghij"));
503 test(S("abcdefghij"), 1, 4, str, str + 10, S("a1234567890fghij"));
504 test(S("abcdefghij"), 1, 4, str, str + 0, S("afghij"));
505 test(S("abcdefghij"), 1, 4, str, str + 1, S("a1fghij"));
506 test(S("abcdefghij"), 1, 4, str, str + 10, S("a1234567890fghij"));
507 test(S("abcdefghij"), 1, 4, str, str + 19, S("a1234567890123456789fghij"));
508 test(S("abcdefghij"), 1, 4, str, str + 20, S("a12345678901234567890fghij"));
509 test(S("abcdefghij"), 1, 8, str, str + 0, S("aj"));
510 test(S("abcdefghij"), 1, 8, str, str + 0, S("aj"));
511 test(S("abcdefghij"), 1, 8, str, str + 1, S("a1j"));
512 test(S("abcdefghij"), 1, 8, str, str + 2, S("a12j"));
513 test(S("abcdefghij"), 1, 8, str, str + 4, S("a1234j"));
514 test(S("abcdefghij"), 1, 8, str, str + 5, S("a12345j"));
515 test(S("abcdefghij"), 1, 8, str, str + 0, S("aj"));
516 test(S("abcdefghij"), 1, 8, str, str + 1, S("a1j"));
517 test(S("abcdefghij"), 1, 8, str, str + 5, S("a12345j"));
518 test(S("abcdefghij"), 1, 8, str, str + 9, S("a123456789j"));
519 test(S("abcdefghij"), 1, 8, str, str + 10, S("a1234567890j"));
520 test(S("abcdefghij"), 1, 8, str, str + 0, S("aj"));
521 test(S("abcdefghij"), 1, 8, str, str + 1, S("a1j"));
522 test(S("abcdefghij"), 1, 8, str, str + 10, S("a1234567890j"));
523 test(S("abcdefghij"), 1, 8, str, str + 19, S("a1234567890123456789j"));
524 test(S("abcdefghij"), 1, 8, str, str + 20, S("a12345678901234567890j"));
525 test(S("abcdefghij"), 1, 9, str, str + 0, S("a"));
526 test(S("abcdefghij"), 1, 9, str, str + 0, S("a"));
527 test(S("abcdefghij"), 1, 9, str, str + 1, S("a1"));
528 test(S("abcdefghij"), 1, 9, str, str + 2, S("a12"));
529 test(S("abcdefghij"), 1, 9, str, str + 4, S("a1234"));
530 test(S("abcdefghij"), 1, 9, str, str + 5, S("a12345"));
531 test(S("abcdefghij"), 1, 9, str, str + 0, S("a"));
532 test(S("abcdefghij"), 1, 9, str, str + 1, S("a1"));
533 test(S("abcdefghij"), 1, 9, str, str + 5, S("a12345"));
534 test(S("abcdefghij"), 1, 9, str, str + 9, S("a123456789"));
535 test(S("abcdefghij"), 1, 9, str, str + 10, S("a1234567890"));
536 test(S("abcdefghij"), 1, 9, str, str + 0, S("a"));
537 test(S("abcdefghij"), 1, 9, str, str + 1, S("a1"));
538 test(S("abcdefghij"), 1, 9, str, str + 10, S("a1234567890"));
539 test(S("abcdefghij"), 1, 9, str, str + 19, S("a1234567890123456789"));
540 test(S("abcdefghij"), 1, 9, str, str + 20, S("a12345678901234567890"));
541 test(S("abcdefghij"), 5, 0, str, str + 0, S("abcdefghij"));
542 test(S("abcdefghij"), 5, 0, str, str + 0, S("abcdefghij"));
543 test(S("abcdefghij"), 5, 0, str, str + 1, S("abcde1fghij"));
544 test(S("abcdefghij"), 5, 0, str, str + 2, S("abcde12fghij"));
545 test(S("abcdefghij"), 5, 0, str, str + 4, S("abcde1234fghij"));
546 test(S("abcdefghij"), 5, 0, str, str + 5, S("abcde12345fghij"));
547 test(S("abcdefghij"), 5, 0, str, str + 0, S("abcdefghij"));
548 test(S("abcdefghij"), 5, 0, str, str + 1, S("abcde1fghij"));
549 test(S("abcdefghij"), 5, 0, str, str + 5, S("abcde12345fghij"));
550 test(S("abcdefghij"), 5, 0, str, str + 9, S("abcde123456789fghij"));
551 test(S("abcdefghij"), 5, 0, str, str + 10, S("abcde1234567890fghij"));
552 test(S("abcdefghij"), 5, 0, str, str + 0, S("abcdefghij"));
553 test(S("abcdefghij"), 5, 0, str, str + 1, S("abcde1fghij"));
554 test(S("abcdefghij"), 5, 0, str, str + 10, S("abcde1234567890fghij"));
555 test(S("abcdefghij"), 5, 0, str, str + 19, S("abcde1234567890123456789fghij"));
556 test(S("abcdefghij"), 5, 0, str, str + 20, S("abcde12345678901234567890fghij"));
557 test(S("abcdefghij"), 5, 1, str, str + 0, S("abcdeghij"));
558 test(S("abcdefghij"), 5, 1, str, str + 0, S("abcdeghij"));
559 test(S("abcdefghij"), 5, 1, str, str + 1, S("abcde1ghij"));
560 test(S("abcdefghij"), 5, 1, str, str + 2, S("abcde12ghij"));
561 test(S("abcdefghij"), 5, 1, str, str + 4, S("abcde1234ghij"));
562 test(S("abcdefghij"), 5, 1, str, str + 5, S("abcde12345ghij"));
563 test(S("abcdefghij"), 5, 1, str, str + 0, S("abcdeghij"));
564 test(S("abcdefghij"), 5, 1, str, str + 1, S("abcde1ghij"));
565 test(S("abcdefghij"), 5, 1, str, str + 5, S("abcde12345ghij"));
566 test(S("abcdefghij"), 5, 1, str, str + 9, S("abcde123456789ghij"));
567 test(S("abcdefghij"), 5, 1, str, str + 10, S("abcde1234567890ghij"));
568 test(S("abcdefghij"), 5, 1, str, str + 0, S("abcdeghij"));
569 test(S("abcdefghij"), 5, 1, str, str + 1, S("abcde1ghij"));
570 test(S("abcdefghij"), 5, 1, str, str + 10, S("abcde1234567890ghij"));
571 test(S("abcdefghij"), 5, 1, str, str + 19, S("abcde1234567890123456789ghij"));
572 test(S("abcdefghij"), 5, 1, str, str + 20, S("abcde12345678901234567890ghij"));
573 test(S("abcdefghij"), 5, 2, str, str + 0, S("abcdehij"));
574 test(S("abcdefghij"), 5, 2, str, str + 0, S("abcdehij"));
575 test(S("abcdefghij"), 5, 2, str, str + 1, S("abcde1hij"));
576 test(S("abcdefghij"), 5, 2, str, str + 2, S("abcde12hij"));
577 test(S("abcdefghij"), 5, 2, str, str + 4, S("abcde1234hij"));
578 test(S("abcdefghij"), 5, 2, str, str + 5, S("abcde12345hij"));
579 test(S("abcdefghij"), 5, 2, str, str + 0, S("abcdehij"));
580 test(S("abcdefghij"), 5, 2, str, str + 1, S("abcde1hij"));
581 test(S("abcdefghij"), 5, 2, str, str + 5, S("abcde12345hij"));
582 test(S("abcdefghij"), 5, 2, str, str + 9, S("abcde123456789hij"));
583 test(S("abcdefghij"), 5, 2, str, str + 10, S("abcde1234567890hij"));
584 test(S("abcdefghij"), 5, 2, str, str + 0, S("abcdehij"));
585 test(S("abcdefghij"), 5, 2, str, str + 1, S("abcde1hij"));
586 test(S("abcdefghij"), 5, 2, str, str + 10, S("abcde1234567890hij"));
587 test(S("abcdefghij"), 5, 2, str, str + 19, S("abcde1234567890123456789hij"));
588 test(S("abcdefghij"), 5, 2, str, str + 20, S("abcde12345678901234567890hij"));
589 test(S("abcdefghij"), 5, 4, str, str + 0, S("abcdej"));
590 test(S("abcdefghij"), 5, 4, str, str + 0, S("abcdej"));
591 test(S("abcdefghij"), 5, 4, str, str + 1, S("abcde1j"));
592 test(S("abcdefghij"), 5, 4, str, str + 2, S("abcde12j"));
593
594 return true;
595}
596
597template <class S>
598TEST_CONSTEXPR_CXX20 bool test5() {
599 test(S("abcdefghij"), 5, 4, str, str + 4, S("abcde1234j"));
600 test(S("abcdefghij"), 5, 4, str, str + 5, S("abcde12345j"));
601 test(S("abcdefghij"), 5, 4, str, str + 0, S("abcdej"));
602 test(S("abcdefghij"), 5, 4, str, str + 1, S("abcde1j"));
603 test(S("abcdefghij"), 5, 4, str, str + 5, S("abcde12345j"));
604 test(S("abcdefghij"), 5, 4, str, str + 9, S("abcde123456789j"));
605 test(S("abcdefghij"), 5, 4, str, str + 10, S("abcde1234567890j"));
606 test(S("abcdefghij"), 5, 4, str, str + 0, S("abcdej"));
607 test(S("abcdefghij"), 5, 4, str, str + 1, S("abcde1j"));
608 test(S("abcdefghij"), 5, 4, str, str + 10, S("abcde1234567890j"));
609 test(S("abcdefghij"), 5, 4, str, str + 19, S("abcde1234567890123456789j"));
610 test(S("abcdefghij"), 5, 4, str, str + 20, S("abcde12345678901234567890j"));
611 test(S("abcdefghij"), 5, 5, str, str + 0, S("abcde"));
612 test(S("abcdefghij"), 5, 5, str, str + 0, S("abcde"));
613 test(S("abcdefghij"), 5, 5, str, str + 1, S("abcde1"));
614 test(S("abcdefghij"), 5, 5, str, str + 2, S("abcde12"));
615 test(S("abcdefghij"), 5, 5, str, str + 4, S("abcde1234"));
616 test(S("abcdefghij"), 5, 5, str, str + 5, S("abcde12345"));
617 test(S("abcdefghij"), 5, 5, str, str + 0, S("abcde"));
618 test(S("abcdefghij"), 5, 5, str, str + 1, S("abcde1"));
619 test(S("abcdefghij"), 5, 5, str, str + 5, S("abcde12345"));
620 test(S("abcdefghij"), 5, 5, str, str + 9, S("abcde123456789"));
621 test(S("abcdefghij"), 5, 5, str, str + 10, S("abcde1234567890"));
622 test(S("abcdefghij"), 5, 5, str, str + 0, S("abcde"));
623 test(S("abcdefghij"), 5, 5, str, str + 1, S("abcde1"));
624 test(S("abcdefghij"), 5, 5, str, str + 10, S("abcde1234567890"));
625 test(S("abcdefghij"), 5, 5, str, str + 19, S("abcde1234567890123456789"));
626 test(S("abcdefghij"), 5, 5, str, str + 20, S("abcde12345678901234567890"));
627 test(S("abcdefghij"), 9, 0, str, str + 0, S("abcdefghij"));
628 test(S("abcdefghij"), 9, 0, str, str + 0, S("abcdefghij"));
629 test(S("abcdefghij"), 9, 0, str, str + 1, S("abcdefghi1j"));
630 test(S("abcdefghij"), 9, 0, str, str + 2, S("abcdefghi12j"));
631 test(S("abcdefghij"), 9, 0, str, str + 4, S("abcdefghi1234j"));
632 test(S("abcdefghij"), 9, 0, str, str + 5, S("abcdefghi12345j"));
633 test(S("abcdefghij"), 9, 0, str, str + 0, S("abcdefghij"));
634 test(S("abcdefghij"), 9, 0, str, str + 1, S("abcdefghi1j"));
635 test(S("abcdefghij"), 9, 0, str, str + 5, S("abcdefghi12345j"));
636 test(S("abcdefghij"), 9, 0, str, str + 9, S("abcdefghi123456789j"));
637 test(S("abcdefghij"), 9, 0, str, str + 10, S("abcdefghi1234567890j"));
638 test(S("abcdefghij"), 9, 0, str, str + 0, S("abcdefghij"));
639 test(S("abcdefghij"), 9, 0, str, str + 1, S("abcdefghi1j"));
640 test(S("abcdefghij"), 9, 0, str, str + 10, S("abcdefghi1234567890j"));
641 test(S("abcdefghij"), 9, 0, str, str + 19, S("abcdefghi1234567890123456789j"));
642 test(S("abcdefghij"), 9, 0, str, str + 20, S("abcdefghi12345678901234567890j"));
643 test(S("abcdefghij"), 9, 1, str, str + 0, S("abcdefghi"));
644 test(S("abcdefghij"), 9, 1, str, str + 0, S("abcdefghi"));
645 test(S("abcdefghij"), 9, 1, str, str + 1, S("abcdefghi1"));
646 test(S("abcdefghij"), 9, 1, str, str + 2, S("abcdefghi12"));
647 test(S("abcdefghij"), 9, 1, str, str + 4, S("abcdefghi1234"));
648 test(S("abcdefghij"), 9, 1, str, str + 5, S("abcdefghi12345"));
649 test(S("abcdefghij"), 9, 1, str, str + 0, S("abcdefghi"));
650 test(S("abcdefghij"), 9, 1, str, str + 1, S("abcdefghi1"));
651 test(S("abcdefghij"), 9, 1, str, str + 5, S("abcdefghi12345"));
652 test(S("abcdefghij"), 9, 1, str, str + 9, S("abcdefghi123456789"));
653 test(S("abcdefghij"), 9, 1, str, str + 10, S("abcdefghi1234567890"));
654 test(S("abcdefghij"), 9, 1, str, str + 0, S("abcdefghi"));
655 test(S("abcdefghij"), 9, 1, str, str + 1, S("abcdefghi1"));
656 test(S("abcdefghij"), 9, 1, str, str + 10, S("abcdefghi1234567890"));
657 test(S("abcdefghij"), 9, 1, str, str + 19, S("abcdefghi1234567890123456789"));
658 test(S("abcdefghij"), 9, 1, str, str + 20, S("abcdefghi12345678901234567890"));
659 test(S("abcdefghij"), 10, 0, str, str + 0, S("abcdefghij"));
660 test(S("abcdefghij"), 10, 0, str, str + 0, S("abcdefghij"));
661 test(S("abcdefghij"), 10, 0, str, str + 1, S("abcdefghij1"));
662 test(S("abcdefghij"), 10, 0, str, str + 2, S("abcdefghij12"));
663 test(S("abcdefghij"), 10, 0, str, str + 4, S("abcdefghij1234"));
664 test(S("abcdefghij"), 10, 0, str, str + 5, S("abcdefghij12345"));
665 test(S("abcdefghij"), 10, 0, str, str + 0, S("abcdefghij"));
666 test(S("abcdefghij"), 10, 0, str, str + 1, S("abcdefghij1"));
667 test(S("abcdefghij"), 10, 0, str, str + 5, S("abcdefghij12345"));
668 test(S("abcdefghij"), 10, 0, str, str + 9, S("abcdefghij123456789"));
669 test(S("abcdefghij"), 10, 0, str, str + 10, S("abcdefghij1234567890"));
670 test(S("abcdefghij"), 10, 0, str, str + 0, S("abcdefghij"));
671 test(S("abcdefghij"), 10, 0, str, str + 1, S("abcdefghij1"));
672 test(S("abcdefghij"), 10, 0, str, str + 10, S("abcdefghij1234567890"));
673 test(S("abcdefghij"), 10, 0, str, str + 19, S("abcdefghij1234567890123456789"));
674 test(S("abcdefghij"), 10, 0, str, str + 20, S("abcdefghij12345678901234567890"));
675 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 0, S("abcdefghijklmnopqrst"));
676 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 0, S("abcdefghijklmnopqrst"));
677 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 1, S("1abcdefghijklmnopqrst"));
678 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 2, S("12abcdefghijklmnopqrst"));
679 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 4, S("1234abcdefghijklmnopqrst"));
680 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 5, S("12345abcdefghijklmnopqrst"));
681 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 0, S("abcdefghijklmnopqrst"));
682 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 1, S("1abcdefghijklmnopqrst"));
683 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 5, S("12345abcdefghijklmnopqrst"));
684 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 9, S("123456789abcdefghijklmnopqrst"));
685 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 10, S("1234567890abcdefghijklmnopqrst"));
686 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 0, S("abcdefghijklmnopqrst"));
687 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 1, S("1abcdefghijklmnopqrst"));
688 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 10, S("1234567890abcdefghijklmnopqrst"));
689 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 19, S("1234567890123456789abcdefghijklmnopqrst"));
690 test(S("abcdefghijklmnopqrst"), 0, 0, str, str + 20, S("12345678901234567890abcdefghijklmnopqrst"));
691 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 0, S("bcdefghijklmnopqrst"));
692 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 0, S("bcdefghijklmnopqrst"));
693 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 1, S("1bcdefghijklmnopqrst"));
694 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 2, S("12bcdefghijklmnopqrst"));
695 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 4, S("1234bcdefghijklmnopqrst"));
696 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 5, S("12345bcdefghijklmnopqrst"));
697 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 0, S("bcdefghijklmnopqrst"));
698 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 1, S("1bcdefghijklmnopqrst"));
699
700 return true;
701}
702
703template <class S>
704TEST_CONSTEXPR_CXX20 bool test6() {
705 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 5, S("12345bcdefghijklmnopqrst"));
706 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 9, S("123456789bcdefghijklmnopqrst"));
707 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 10, S("1234567890bcdefghijklmnopqrst"));
708 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 0, S("bcdefghijklmnopqrst"));
709 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 1, S("1bcdefghijklmnopqrst"));
710 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 10, S("1234567890bcdefghijklmnopqrst"));
711 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 19, S("1234567890123456789bcdefghijklmnopqrst"));
712 test(S("abcdefghijklmnopqrst"), 0, 1, str, str + 20, S("12345678901234567890bcdefghijklmnopqrst"));
713 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 0, S("klmnopqrst"));
714 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 0, S("klmnopqrst"));
715 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 1, S("1klmnopqrst"));
716 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 2, S("12klmnopqrst"));
717 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 4, S("1234klmnopqrst"));
718 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 5, S("12345klmnopqrst"));
719 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 0, S("klmnopqrst"));
720 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 1, S("1klmnopqrst"));
721 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 5, S("12345klmnopqrst"));
722 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 9, S("123456789klmnopqrst"));
723 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 10, S("1234567890klmnopqrst"));
724 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 0, S("klmnopqrst"));
725 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 1, S("1klmnopqrst"));
726 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 10, S("1234567890klmnopqrst"));
727 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 19, S("1234567890123456789klmnopqrst"));
728 test(S("abcdefghijklmnopqrst"), 0, 10, str, str + 20, S("12345678901234567890klmnopqrst"));
729 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 0, S("t"));
730 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 0, S("t"));
731 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 1, S("1t"));
732 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 2, S("12t"));
733 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 4, S("1234t"));
734 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 5, S("12345t"));
735 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 0, S("t"));
736 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 1, S("1t"));
737 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 5, S("12345t"));
738 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 9, S("123456789t"));
739 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 10, S("1234567890t"));
740 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 0, S("t"));
741 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 1, S("1t"));
742 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 10, S("1234567890t"));
743 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 19, S("1234567890123456789t"));
744 test(S("abcdefghijklmnopqrst"), 0, 19, str, str + 20, S("12345678901234567890t"));
745 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 0, S(""));
746 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 0, S(""));
747 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 1, S("1"));
748 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 2, S("12"));
749 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 4, S("1234"));
750 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 5, S("12345"));
751 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 0, S(""));
752 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 1, S("1"));
753 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 5, S("12345"));
754 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 9, S("123456789"));
755 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 10, S("1234567890"));
756 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 0, S(""));
757 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 1, S("1"));
758 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 10, S("1234567890"));
759 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 19, S("1234567890123456789"));
760 test(S("abcdefghijklmnopqrst"), 0, 20, str, str + 20, S("12345678901234567890"));
761 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 0, S("abcdefghijklmnopqrst"));
762 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 0, S("abcdefghijklmnopqrst"));
763 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 1, S("a1bcdefghijklmnopqrst"));
764 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 2, S("a12bcdefghijklmnopqrst"));
765 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 4, S("a1234bcdefghijklmnopqrst"));
766 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 5, S("a12345bcdefghijklmnopqrst"));
767 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 0, S("abcdefghijklmnopqrst"));
768 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 1, S("a1bcdefghijklmnopqrst"));
769 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 5, S("a12345bcdefghijklmnopqrst"));
770 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 9, S("a123456789bcdefghijklmnopqrst"));
771 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 10, S("a1234567890bcdefghijklmnopqrst"));
772 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 0, S("abcdefghijklmnopqrst"));
773 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 1, S("a1bcdefghijklmnopqrst"));
774 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 10, S("a1234567890bcdefghijklmnopqrst"));
775 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 19, S("a1234567890123456789bcdefghijklmnopqrst"));
776 test(S("abcdefghijklmnopqrst"), 1, 0, str, str + 20, S("a12345678901234567890bcdefghijklmnopqrst"));
777 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 0, S("acdefghijklmnopqrst"));
778 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 0, S("acdefghijklmnopqrst"));
779 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 1, S("a1cdefghijklmnopqrst"));
780 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 2, S("a12cdefghijklmnopqrst"));
781 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 4, S("a1234cdefghijklmnopqrst"));
782 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 5, S("a12345cdefghijklmnopqrst"));
783 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 0, S("acdefghijklmnopqrst"));
784 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 1, S("a1cdefghijklmnopqrst"));
785 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 5, S("a12345cdefghijklmnopqrst"));
786 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 9, S("a123456789cdefghijklmnopqrst"));
787 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 10, S("a1234567890cdefghijklmnopqrst"));
788 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 0, S("acdefghijklmnopqrst"));
789 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 1, S("a1cdefghijklmnopqrst"));
790 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 10, S("a1234567890cdefghijklmnopqrst"));
791 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 19, S("a1234567890123456789cdefghijklmnopqrst"));
792 test(S("abcdefghijklmnopqrst"), 1, 1, str, str + 20, S("a12345678901234567890cdefghijklmnopqrst"));
793 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 0, S("aklmnopqrst"));
794 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 0, S("aklmnopqrst"));
795 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 1, S("a1klmnopqrst"));
796 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 2, S("a12klmnopqrst"));
797 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 4, S("a1234klmnopqrst"));
798 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 5, S("a12345klmnopqrst"));
799 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 0, S("aklmnopqrst"));
800 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 1, S("a1klmnopqrst"));
801 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 5, S("a12345klmnopqrst"));
802 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 9, S("a123456789klmnopqrst"));
803 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 10, S("a1234567890klmnopqrst"));
804 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 0, S("aklmnopqrst"));
805
806 return true;
807}
808
809template <class S>
810TEST_CONSTEXPR_CXX20 bool test7() {
811 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 1, S("a1klmnopqrst"));
812 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 10, S("a1234567890klmnopqrst"));
813 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 19, S("a1234567890123456789klmnopqrst"));
814 test(S("abcdefghijklmnopqrst"), 1, 9, str, str + 20, S("a12345678901234567890klmnopqrst"));
815 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 0, S("at"));
816 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 0, S("at"));
817 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 1, S("a1t"));
818 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 2, S("a12t"));
819 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 4, S("a1234t"));
820 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 5, S("a12345t"));
821 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 0, S("at"));
822 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 1, S("a1t"));
823 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 5, S("a12345t"));
824 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 9, S("a123456789t"));
825 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 10, S("a1234567890t"));
826 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 0, S("at"));
827 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 1, S("a1t"));
828 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 10, S("a1234567890t"));
829 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 19, S("a1234567890123456789t"));
830 test(S("abcdefghijklmnopqrst"), 1, 18, str, str + 20, S("a12345678901234567890t"));
831 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 0, S("a"));
832 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 0, S("a"));
833 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 1, S("a1"));
834 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 2, S("a12"));
835 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 4, S("a1234"));
836 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 5, S("a12345"));
837 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 0, S("a"));
838 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 1, S("a1"));
839 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 5, S("a12345"));
840 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 9, S("a123456789"));
841 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 10, S("a1234567890"));
842 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 0, S("a"));
843 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 1, S("a1"));
844 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 10, S("a1234567890"));
845 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 19, S("a1234567890123456789"));
846 test(S("abcdefghijklmnopqrst"), 1, 19, str, str + 20, S("a12345678901234567890"));
847 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 0, S("abcdefghijklmnopqrst"));
848 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 0, S("abcdefghijklmnopqrst"));
849 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 1, S("abcdefghij1klmnopqrst"));
850 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 2, S("abcdefghij12klmnopqrst"));
851 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 4, S("abcdefghij1234klmnopqrst"));
852 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 5, S("abcdefghij12345klmnopqrst"));
853 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 0, S("abcdefghijklmnopqrst"));
854 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 1, S("abcdefghij1klmnopqrst"));
855 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 5, S("abcdefghij12345klmnopqrst"));
856 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 9, S("abcdefghij123456789klmnopqrst"));
857 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 10, S("abcdefghij1234567890klmnopqrst"));
858 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 0, S("abcdefghijklmnopqrst"));
859 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 1, S("abcdefghij1klmnopqrst"));
860 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 10, S("abcdefghij1234567890klmnopqrst"));
861 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 19, S("abcdefghij1234567890123456789klmnopqrst"));
862 test(S("abcdefghijklmnopqrst"), 10, 0, str, str + 20, S("abcdefghij12345678901234567890klmnopqrst"));
863 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 0, S("abcdefghijlmnopqrst"));
864 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 0, S("abcdefghijlmnopqrst"));
865 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 1, S("abcdefghij1lmnopqrst"));
866 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 2, S("abcdefghij12lmnopqrst"));
867 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 4, S("abcdefghij1234lmnopqrst"));
868 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 5, S("abcdefghij12345lmnopqrst"));
869 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 0, S("abcdefghijlmnopqrst"));
870 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 1, S("abcdefghij1lmnopqrst"));
871 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 5, S("abcdefghij12345lmnopqrst"));
872 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 9, S("abcdefghij123456789lmnopqrst"));
873 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 10, S("abcdefghij1234567890lmnopqrst"));
874 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 0, S("abcdefghijlmnopqrst"));
875 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 1, S("abcdefghij1lmnopqrst"));
876 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 10, S("abcdefghij1234567890lmnopqrst"));
877 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 19, S("abcdefghij1234567890123456789lmnopqrst"));
878 test(S("abcdefghijklmnopqrst"), 10, 1, str, str + 20, S("abcdefghij12345678901234567890lmnopqrst"));
879 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 0, S("abcdefghijpqrst"));
880 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 0, S("abcdefghijpqrst"));
881 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 1, S("abcdefghij1pqrst"));
882 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 2, S("abcdefghij12pqrst"));
883 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 4, S("abcdefghij1234pqrst"));
884 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 5, S("abcdefghij12345pqrst"));
885 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 0, S("abcdefghijpqrst"));
886 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 1, S("abcdefghij1pqrst"));
887 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 5, S("abcdefghij12345pqrst"));
888 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 9, S("abcdefghij123456789pqrst"));
889 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 10, S("abcdefghij1234567890pqrst"));
890 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 0, S("abcdefghijpqrst"));
891 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 1, S("abcdefghij1pqrst"));
892 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 10, S("abcdefghij1234567890pqrst"));
893 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 19, S("abcdefghij1234567890123456789pqrst"));
894 test(S("abcdefghijklmnopqrst"), 10, 5, str, str + 20, S("abcdefghij12345678901234567890pqrst"));
895 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 0, S("abcdefghijt"));
896 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 0, S("abcdefghijt"));
897 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 1, S("abcdefghij1t"));
898 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 2, S("abcdefghij12t"));
899 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 4, S("abcdefghij1234t"));
900 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 5, S("abcdefghij12345t"));
901 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 0, S("abcdefghijt"));
902 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 1, S("abcdefghij1t"));
903 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 5, S("abcdefghij12345t"));
904 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 9, S("abcdefghij123456789t"));
905 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 10, S("abcdefghij1234567890t"));
906 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 0, S("abcdefghijt"));
907 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 1, S("abcdefghij1t"));
908 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 10, S("abcdefghij1234567890t"));
909 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 19, S("abcdefghij1234567890123456789t"));
910 test(S("abcdefghijklmnopqrst"), 10, 9, str, str + 20, S("abcdefghij12345678901234567890t"));
911
912 return true;
913}
914
915template <class S>
916TEST_CONSTEXPR_CXX20 bool test8() {
917 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 0, S("abcdefghij"));
918 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 0, S("abcdefghij"));
919 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 1, S("abcdefghij1"));
920 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 2, S("abcdefghij12"));
921 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 4, S("abcdefghij1234"));
922 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 5, S("abcdefghij12345"));
923 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 0, S("abcdefghij"));
924 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 1, S("abcdefghij1"));
925 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 5, S("abcdefghij12345"));
926 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 9, S("abcdefghij123456789"));
927 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 10, S("abcdefghij1234567890"));
928 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 0, S("abcdefghij"));
929 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 1, S("abcdefghij1"));
930 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 10, S("abcdefghij1234567890"));
931 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 19, S("abcdefghij1234567890123456789"));
932 test(S("abcdefghijklmnopqrst"), 10, 10, str, str + 20, S("abcdefghij12345678901234567890"));
933 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 0, S("abcdefghijklmnopqrst"));
934 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 0, S("abcdefghijklmnopqrst"));
935 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 1, S("abcdefghijklmnopqrs1t"));
936 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 2, S("abcdefghijklmnopqrs12t"));
937 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 4, S("abcdefghijklmnopqrs1234t"));
938 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 5, S("abcdefghijklmnopqrs12345t"));
939 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 0, S("abcdefghijklmnopqrst"));
940 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 1, S("abcdefghijklmnopqrs1t"));
941 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 5, S("abcdefghijklmnopqrs12345t"));
942 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 9, S("abcdefghijklmnopqrs123456789t"));
943 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 10, S("abcdefghijklmnopqrs1234567890t"));
944 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 0, S("abcdefghijklmnopqrst"));
945 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 1, S("abcdefghijklmnopqrs1t"));
946 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 10, S("abcdefghijklmnopqrs1234567890t"));
947 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 19, S("abcdefghijklmnopqrs1234567890123456789t"));
948 test(S("abcdefghijklmnopqrst"), 19, 0, str, str + 20, S("abcdefghijklmnopqrs12345678901234567890t"));
949 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 0, S("abcdefghijklmnopqrs"));
950 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 0, S("abcdefghijklmnopqrs"));
951 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 1, S("abcdefghijklmnopqrs1"));
952 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 2, S("abcdefghijklmnopqrs12"));
953 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 4, S("abcdefghijklmnopqrs1234"));
954 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 5, S("abcdefghijklmnopqrs12345"));
955 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 0, S("abcdefghijklmnopqrs"));
956 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 1, S("abcdefghijklmnopqrs1"));
957 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 5, S("abcdefghijklmnopqrs12345"));
958 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 9, S("abcdefghijklmnopqrs123456789"));
959 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 10, S("abcdefghijklmnopqrs1234567890"));
960 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 0, S("abcdefghijklmnopqrs"));
961 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 1, S("abcdefghijklmnopqrs1"));
962 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 10, S("abcdefghijklmnopqrs1234567890"));
963 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 19, S("abcdefghijklmnopqrs1234567890123456789"));
964 test(S("abcdefghijklmnopqrst"), 19, 1, str, str + 20, S("abcdefghijklmnopqrs12345678901234567890"));
965 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 0, S("abcdefghijklmnopqrst"));
966 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 0, S("abcdefghijklmnopqrst"));
967 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 1, S("abcdefghijklmnopqrst1"));
968 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 2, S("abcdefghijklmnopqrst12"));
969 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 4, S("abcdefghijklmnopqrst1234"));
970 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 5, S("abcdefghijklmnopqrst12345"));
971 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 0, S("abcdefghijklmnopqrst"));
972 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 1, S("abcdefghijklmnopqrst1"));
973 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 5, S("abcdefghijklmnopqrst12345"));
974 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 9, S("abcdefghijklmnopqrst123456789"));
975 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 10, S("abcdefghijklmnopqrst1234567890"));
976 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 0, S("abcdefghijklmnopqrst"));
977 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 1, S("abcdefghijklmnopqrst1"));
978 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 10, S("abcdefghijklmnopqrst1234567890"));
979 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 19, S("abcdefghijklmnopqrst1234567890123456789"));
980 test(S("abcdefghijklmnopqrst"), 20, 0, str, str + 20, S("abcdefghijklmnopqrst12345678901234567890"));
981
982 return true;
983}
984
985template <class S>
986TEST_CONSTEXPR_CXX20 bool test9() {
987#ifndef TEST_HAS_NO_EXCEPTIONS
988 if (!TEST_IS_CONSTANT_EVALUATED) { // test iterator operations that throw
989 typedef ThrowingIterator<char> TIter;
990 typedef cpp17_input_iterator<TIter> IIter;
991 const char* s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
992 test_exceptions(S("abcdefghijklmnopqrst"), 10, 5, IIter(TIter(s, s + 10, 4, TIter::TAIncrement)), IIter(TIter()));
993 test_exceptions(S("abcdefghijklmnopqrst"), 10, 5, IIter(TIter(s, s + 10, 5, TIter::TADereference)), IIter(TIter()));
994 test_exceptions(S("abcdefghijklmnopqrst"), 10, 5, IIter(TIter(s, s + 10, 6, TIter::TAComparison)), IIter(TIter()));
995
996 test_exceptions(S("abcdefghijklmnopqrst"), 10, 5, TIter(s, s + 10, 4, TIter::TAIncrement), TIter());
997 test_exceptions(S("abcdefghijklmnopqrst"), 10, 5, TIter(s, s + 10, 5, TIter::TADereference), TIter());
998 test_exceptions(S("abcdefghijklmnopqrst"), 10, 5, TIter(s, s + 10, 6, TIter::TAComparison), TIter());
999
1000 Widget w[100];
1001 test_exceptions(S("abcdefghijklmnopqrst"), 10, 5, w, w + 100);
1002 }
1003#endif
1004
1005 { // test replacing into self
1006 S s_short = "123/";
1007 S s_long = "Lorem ipsum dolor sit amet, consectetur/";
1008
1009 s_short.replace(s_short.begin(), s_short.begin(), s_short.begin(), s_short.end());
1010 assert(s_short == "123/123/");
1011 s_short.replace(s_short.begin(), s_short.begin(), s_short.begin(), s_short.end());
1012 assert(s_short == "123/123/123/123/");
1013 s_short.replace(s_short.begin(), s_short.begin(), s_short.begin(), s_short.end());
1014 assert(s_short == "123/123/123/123/123/123/123/123/");
1015
1016 s_long.replace(s_long.begin(), s_long.begin(), s_long.begin(), s_long.end());
1017 assert(s_long == "Lorem ipsum dolor sit amet, consectetur/Lorem ipsum dolor sit amet, consectetur/");
1018 }
1019
1020 { // test assigning a different type
1021 const std::uint8_t pc[] = "ABCD";
1022 std::uint8_t p[] = "EFGH";
1023
1024 S s;
1025 s.replace(s.begin(), s.end(), pc, pc + 4);
1026 assert(s == "ABCD");
1027
1028 s.clear();
1029 s.replace(s.begin(), s.end(), p, p + 4);
1030 assert(s == "EFGH");
1031 }
1032
1033 return true;
1034}
1035
1036template <class S>
1037void test() {
1038 test0<S>();
1039 test1<S>();
1040 test2<S>();
1041 test3<S>();
1042 test4<S>();
1043 test5<S>();
1044 test6<S>();
1045 test7<S>();
1046 test8<S>();
1047 test9<S>();
1048
1049#if TEST_STD_VER > 17
1050 static_assert(test0<S>());
1051 static_assert(test1<S>());
1052 static_assert(test2<S>());
1053 static_assert(test3<S>());
1054 static_assert(test4<S>());
1055 static_assert(test5<S>());
1056 static_assert(test6<S>());
1057 static_assert(test7<S>());
1058 static_assert(test8<S>());
1059 static_assert(test9<S>());
1060#endif
1061}
1062
1063int main(int, char**) {
1064 test<std::string>();
1065#if TEST_STD_VER >= 11
1066 test<std::basic_string<char, std::char_traits<char>, min_allocator<char>>>();
1067#endif
1068
1069 return 0;
1070}
1071

source code of libcxx/test/std/strings/basic.string/string.modifiers/string_replace/iter_iter_iter_iter.pass.cpp