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 // UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
10
11 // <string_view>
12 // constexpr size_type rfind(const charT* s, size_type pos, size_type n) const;
13
14 #include <string_view>
15 #include <cassert>
16
17 #include "test_macros.h"
18 #include "constexpr_char_traits.h"
19
20 template <class S>
21 void
test(const S & s,const typename S::value_type * str,typename S::size_type pos,typename S::size_type n,typename S::size_type x)22 test(const S& s, const typename S::value_type* str, typename S::size_type pos,
23 typename S::size_type n, typename S::size_type x)
24 {
25 LIBCPP_ASSERT_NOEXCEPT(s.rfind(str, pos, n));
26 assert(s.rfind(str, pos, n) == x);
27 if (x != S::npos)
28 assert(x <= pos && x + n <= s.size());
29 }
30
31 template <class S>
test0()32 void test0()
33 {
34 test(S(""), "", 0, 0, 0);
35 test(S(""), "abcde", 0, 0, 0);
36 test(S(""), "abcde", 0, 1, S::npos);
37 test(S(""), "abcde", 0, 2, S::npos);
38 test(S(""), "abcde", 0, 4, S::npos);
39 test(S(""), "abcde", 0, 5, S::npos);
40 test(S(""), "abcdeabcde", 0, 0, 0);
41 test(S(""), "abcdeabcde", 0, 1, S::npos);
42 test(S(""), "abcdeabcde", 0, 5, S::npos);
43 test(S(""), "abcdeabcde", 0, 9, S::npos);
44 test(S(""), "abcdeabcde", 0, 10, S::npos);
45 test(S(""), "abcdeabcdeabcdeabcde", 0, 0, 0);
46 test(S(""), "abcdeabcdeabcdeabcde", 0, 1, S::npos);
47 test(S(""), "abcdeabcdeabcdeabcde", 0, 10, S::npos);
48 test(S(""), "abcdeabcdeabcdeabcde", 0, 19, S::npos);
49 test(S(""), "abcdeabcdeabcdeabcde", 0, 20, S::npos);
50 test(S(""), "", 1, 0, 0);
51 test(S(""), "abcde", 1, 0, 0);
52 test(S(""), "abcde", 1, 1, S::npos);
53 test(S(""), "abcde", 1, 2, S::npos);
54 test(S(""), "abcde", 1, 4, S::npos);
55 test(S(""), "abcde", 1, 5, S::npos);
56 test(S(""), "abcdeabcde", 1, 0, 0);
57 test(S(""), "abcdeabcde", 1, 1, S::npos);
58 test(S(""), "abcdeabcde", 1, 5, S::npos);
59 test(S(""), "abcdeabcde", 1, 9, S::npos);
60 test(S(""), "abcdeabcde", 1, 10, S::npos);
61 test(S(""), "abcdeabcdeabcdeabcde", 1, 0, 0);
62 test(S(""), "abcdeabcdeabcdeabcde", 1, 1, S::npos);
63 test(S(""), "abcdeabcdeabcdeabcde", 1, 10, S::npos);
64 test(S(""), "abcdeabcdeabcdeabcde", 1, 19, S::npos);
65 test(S(""), "abcdeabcdeabcdeabcde", 1, 20, S::npos);
66 test(S("abcde"), "", 0, 0, 0);
67 test(S("abcde"), "abcde", 0, 0, 0);
68 test(S("abcde"), "abcde", 0, 1, 0);
69 test(S("abcde"), "abcde", 0, 2, 0);
70 test(S("abcde"), "abcde", 0, 4, 0);
71 test(S("abcde"), "abcde", 0, 5, 0);
72 test(S("abcde"), "abcdeabcde", 0, 0, 0);
73 test(S("abcde"), "abcdeabcde", 0, 1, 0);
74 test(S("abcde"), "abcdeabcde", 0, 5, 0);
75 test(S("abcde"), "abcdeabcde", 0, 9, S::npos);
76 test(S("abcde"), "abcdeabcde", 0, 10, S::npos);
77 test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 0, 0);
78 test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 1, 0);
79 test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 10, S::npos);
80 test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 19, S::npos);
81 test(S("abcde"), "abcdeabcdeabcdeabcde", 0, 20, S::npos);
82 test(S("abcde"), "", 1, 0, 1);
83 test(S("abcde"), "abcde", 1, 0, 1);
84 test(S("abcde"), "abcde", 1, 1, 0);
85 test(S("abcde"), "abcde", 1, 2, 0);
86 test(S("abcde"), "abcde", 1, 4, 0);
87 test(S("abcde"), "abcde", 1, 5, 0);
88 test(S("abcde"), "abcdeabcde", 1, 0, 1);
89 test(S("abcde"), "abcdeabcde", 1, 1, 0);
90 test(S("abcde"), "abcdeabcde", 1, 5, 0);
91 test(S("abcde"), "abcdeabcde", 1, 9, S::npos);
92 test(S("abcde"), "abcdeabcde", 1, 10, S::npos);
93 test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 0, 1);
94 test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 1, 0);
95 test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 10, S::npos);
96 test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 19, S::npos);
97 test(S("abcde"), "abcdeabcdeabcdeabcde", 1, 20, S::npos);
98 test(S("abcde"), "", 2, 0, 2);
99 test(S("abcde"), "abcde", 2, 0, 2);
100 test(S("abcde"), "abcde", 2, 1, 0);
101 test(S("abcde"), "abcde", 2, 2, 0);
102 test(S("abcde"), "abcde", 2, 4, 0);
103 test(S("abcde"), "abcde", 2, 5, 0);
104 test(S("abcde"), "abcdeabcde", 2, 0, 2);
105 test(S("abcde"), "abcdeabcde", 2, 1, 0);
106 test(S("abcde"), "abcdeabcde", 2, 5, 0);
107 test(S("abcde"), "abcdeabcde", 2, 9, S::npos);
108 test(S("abcde"), "abcdeabcde", 2, 10, S::npos);
109 test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 0, 2);
110 test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 1, 0);
111 test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 10, S::npos);
112 test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 19, S::npos);
113 test(S("abcde"), "abcdeabcdeabcdeabcde", 2, 20, S::npos);
114 test(S("abcde"), "", 4, 0, 4);
115 test(S("abcde"), "abcde", 4, 0, 4);
116 test(S("abcde"), "abcde", 4, 1, 0);
117 test(S("abcde"), "abcde", 4, 2, 0);
118 test(S("abcde"), "abcde", 4, 4, 0);
119 test(S("abcde"), "abcde", 4, 5, 0);
120 test(S("abcde"), "abcdeabcde", 4, 0, 4);
121 test(S("abcde"), "abcdeabcde", 4, 1, 0);
122 test(S("abcde"), "abcdeabcde", 4, 5, 0);
123 test(S("abcde"), "abcdeabcde", 4, 9, S::npos);
124 test(S("abcde"), "abcdeabcde", 4, 10, S::npos);
125 test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 0, 4);
126 test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 1, 0);
127 test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 10, S::npos);
128 test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 19, S::npos);
129 test(S("abcde"), "abcdeabcdeabcdeabcde", 4, 20, S::npos);
130 test(S("abcde"), "", 5, 0, 5);
131 test(S("abcde"), "abcde", 5, 0, 5);
132 test(S("abcde"), "abcde", 5, 1, 0);
133 test(S("abcde"), "abcde", 5, 2, 0);
134 }
135
136 template <class S>
test1()137 void test1()
138 {
139 test(S("abcde"), "abcde", 5, 4, 0);
140 test(S("abcde"), "abcde", 5, 5, 0);
141 test(S("abcde"), "abcdeabcde", 5, 0, 5);
142 test(S("abcde"), "abcdeabcde", 5, 1, 0);
143 test(S("abcde"), "abcdeabcde", 5, 5, 0);
144 test(S("abcde"), "abcdeabcde", 5, 9, S::npos);
145 test(S("abcde"), "abcdeabcde", 5, 10, S::npos);
146 test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 0, 5);
147 test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 1, 0);
148 test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 10, S::npos);
149 test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 19, S::npos);
150 test(S("abcde"), "abcdeabcdeabcdeabcde", 5, 20, S::npos);
151 test(S("abcde"), "", 6, 0, 5);
152 test(S("abcde"), "abcde", 6, 0, 5);
153 test(S("abcde"), "abcde", 6, 1, 0);
154 test(S("abcde"), "abcde", 6, 2, 0);
155 test(S("abcde"), "abcde", 6, 4, 0);
156 test(S("abcde"), "abcde", 6, 5, 0);
157 test(S("abcde"), "abcdeabcde", 6, 0, 5);
158 test(S("abcde"), "abcdeabcde", 6, 1, 0);
159 test(S("abcde"), "abcdeabcde", 6, 5, 0);
160 test(S("abcde"), "abcdeabcde", 6, 9, S::npos);
161 test(S("abcde"), "abcdeabcde", 6, 10, S::npos);
162 test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 0, 5);
163 test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 1, 0);
164 test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 10, S::npos);
165 test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 19, S::npos);
166 test(S("abcde"), "abcdeabcdeabcdeabcde", 6, 20, S::npos);
167 test(S("abcdeabcde"), "", 0, 0, 0);
168 test(S("abcdeabcde"), "abcde", 0, 0, 0);
169 test(S("abcdeabcde"), "abcde", 0, 1, 0);
170 test(S("abcdeabcde"), "abcde", 0, 2, 0);
171 test(S("abcdeabcde"), "abcde", 0, 4, 0);
172 test(S("abcdeabcde"), "abcde", 0, 5, 0);
173 test(S("abcdeabcde"), "abcdeabcde", 0, 0, 0);
174 test(S("abcdeabcde"), "abcdeabcde", 0, 1, 0);
175 test(S("abcdeabcde"), "abcdeabcde", 0, 5, 0);
176 test(S("abcdeabcde"), "abcdeabcde", 0, 9, 0);
177 test(S("abcdeabcde"), "abcdeabcde", 0, 10, 0);
178 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 0, 0);
179 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 1, 0);
180 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 10, 0);
181 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 19, S::npos);
182 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 0, 20, S::npos);
183 test(S("abcdeabcde"), "", 1, 0, 1);
184 test(S("abcdeabcde"), "abcde", 1, 0, 1);
185 test(S("abcdeabcde"), "abcde", 1, 1, 0);
186 test(S("abcdeabcde"), "abcde", 1, 2, 0);
187 test(S("abcdeabcde"), "abcde", 1, 4, 0);
188 test(S("abcdeabcde"), "abcde", 1, 5, 0);
189 test(S("abcdeabcde"), "abcdeabcde", 1, 0, 1);
190 test(S("abcdeabcde"), "abcdeabcde", 1, 1, 0);
191 test(S("abcdeabcde"), "abcdeabcde", 1, 5, 0);
192 test(S("abcdeabcde"), "abcdeabcde", 1, 9, 0);
193 test(S("abcdeabcde"), "abcdeabcde", 1, 10, 0);
194 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 0, 1);
195 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 1, 0);
196 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 10, 0);
197 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 19, S::npos);
198 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 1, 20, S::npos);
199 test(S("abcdeabcde"), "", 5, 0, 5);
200 test(S("abcdeabcde"), "abcde", 5, 0, 5);
201 test(S("abcdeabcde"), "abcde", 5, 1, 5);
202 test(S("abcdeabcde"), "abcde", 5, 2, 5);
203 test(S("abcdeabcde"), "abcde", 5, 4, 5);
204 test(S("abcdeabcde"), "abcde", 5, 5, 5);
205 test(S("abcdeabcde"), "abcdeabcde", 5, 0, 5);
206 test(S("abcdeabcde"), "abcdeabcde", 5, 1, 5);
207 test(S("abcdeabcde"), "abcdeabcde", 5, 5, 5);
208 test(S("abcdeabcde"), "abcdeabcde", 5, 9, 0);
209 test(S("abcdeabcde"), "abcdeabcde", 5, 10, 0);
210 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 0, 5);
211 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 1, 5);
212 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 10, 0);
213 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 19, S::npos);
214 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 5, 20, S::npos);
215 test(S("abcdeabcde"), "", 9, 0, 9);
216 test(S("abcdeabcde"), "abcde", 9, 0, 9);
217 test(S("abcdeabcde"), "abcde", 9, 1, 5);
218 test(S("abcdeabcde"), "abcde", 9, 2, 5);
219 test(S("abcdeabcde"), "abcde", 9, 4, 5);
220 test(S("abcdeabcde"), "abcde", 9, 5, 5);
221 test(S("abcdeabcde"), "abcdeabcde", 9, 0, 9);
222 test(S("abcdeabcde"), "abcdeabcde", 9, 1, 5);
223 test(S("abcdeabcde"), "abcdeabcde", 9, 5, 5);
224 test(S("abcdeabcde"), "abcdeabcde", 9, 9, 0);
225 test(S("abcdeabcde"), "abcdeabcde", 9, 10, 0);
226 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 0, 9);
227 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 1, 5);
228 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 10, 0);
229 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 19, S::npos);
230 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 9, 20, S::npos);
231 test(S("abcdeabcde"), "", 10, 0, 10);
232 test(S("abcdeabcde"), "abcde", 10, 0, 10);
233 test(S("abcdeabcde"), "abcde", 10, 1, 5);
234 test(S("abcdeabcde"), "abcde", 10, 2, 5);
235 test(S("abcdeabcde"), "abcde", 10, 4, 5);
236 test(S("abcdeabcde"), "abcde", 10, 5, 5);
237 test(S("abcdeabcde"), "abcdeabcde", 10, 0, 10);
238 test(S("abcdeabcde"), "abcdeabcde", 10, 1, 5);
239 }
240
241 template <class S>
test2()242 void test2()
243 {
244 test(S("abcdeabcde"), "abcdeabcde", 10, 5, 5);
245 test(S("abcdeabcde"), "abcdeabcde", 10, 9, 0);
246 test(S("abcdeabcde"), "abcdeabcde", 10, 10, 0);
247 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 0, 10);
248 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 1, 5);
249 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 10, 0);
250 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 19, S::npos);
251 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 10, 20, S::npos);
252 test(S("abcdeabcde"), "", 11, 0, 10);
253 test(S("abcdeabcde"), "abcde", 11, 0, 10);
254 test(S("abcdeabcde"), "abcde", 11, 1, 5);
255 test(S("abcdeabcde"), "abcde", 11, 2, 5);
256 test(S("abcdeabcde"), "abcde", 11, 4, 5);
257 test(S("abcdeabcde"), "abcde", 11, 5, 5);
258 test(S("abcdeabcde"), "abcdeabcde", 11, 0, 10);
259 test(S("abcdeabcde"), "abcdeabcde", 11, 1, 5);
260 test(S("abcdeabcde"), "abcdeabcde", 11, 5, 5);
261 test(S("abcdeabcde"), "abcdeabcde", 11, 9, 0);
262 test(S("abcdeabcde"), "abcdeabcde", 11, 10, 0);
263 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 0, 10);
264 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 1, 5);
265 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 10, 0);
266 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 19, S::npos);
267 test(S("abcdeabcde"), "abcdeabcdeabcdeabcde", 11, 20, S::npos);
268 test(S("abcdeabcdeabcdeabcde"), "", 0, 0, 0);
269 test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 0, 0);
270 test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 1, 0);
271 test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 2, 0);
272 test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 4, 0);
273 test(S("abcdeabcdeabcdeabcde"), "abcde", 0, 5, 0);
274 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 0, 0);
275 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 1, 0);
276 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 5, 0);
277 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 9, 0);
278 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 0, 10, 0);
279 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 0, 0);
280 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 1, 0);
281 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 10, 0);
282 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 19, 0);
283 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 0, 20, 0);
284 test(S("abcdeabcdeabcdeabcde"), "", 1, 0, 1);
285 test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 0, 1);
286 test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 1, 0);
287 test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 2, 0);
288 test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 4, 0);
289 test(S("abcdeabcdeabcdeabcde"), "abcde", 1, 5, 0);
290 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 0, 1);
291 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 1, 0);
292 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 5, 0);
293 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 9, 0);
294 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 1, 10, 0);
295 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 0, 1);
296 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 1, 0);
297 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 10, 0);
298 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 19, 0);
299 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 1, 20, 0);
300 test(S("abcdeabcdeabcdeabcde"), "", 10, 0, 10);
301 test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 0, 10);
302 test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 1, 10);
303 test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 2, 10);
304 test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 4, 10);
305 test(S("abcdeabcdeabcdeabcde"), "abcde", 10, 5, 10);
306 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 0, 10);
307 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 1, 10);
308 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 5, 10);
309 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 9, 10);
310 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 10, 10, 10);
311 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 0, 10);
312 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 1, 10);
313 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 10, 10);
314 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 19, 0);
315 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 10, 20, 0);
316 test(S("abcdeabcdeabcdeabcde"), "", 19, 0, 19);
317 test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 0, 19);
318 test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 1, 15);
319 test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 2, 15);
320 test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 4, 15);
321 test(S("abcdeabcdeabcdeabcde"), "abcde", 19, 5, 15);
322 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 0, 19);
323 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 1, 15);
324 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 5, 15);
325 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 9, 10);
326 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 19, 10, 10);
327 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 0, 19);
328 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 1, 15);
329 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 10, 10);
330 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 19, 0);
331 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 19, 20, 0);
332 test(S("abcdeabcdeabcdeabcde"), "", 20, 0, 20);
333 test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 0, 20);
334 test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 1, 15);
335 test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 2, 15);
336 test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 4, 15);
337 test(S("abcdeabcdeabcdeabcde"), "abcde", 20, 5, 15);
338 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 0, 20);
339 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 1, 15);
340 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 5, 15);
341 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 9, 10);
342 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 20, 10, 10);
343 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 0, 20);
344 }
345
346 template <class S>
test3()347 void test3()
348 {
349 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 1, 15);
350 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 10, 10);
351 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 19, 0);
352 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 20, 20, 0);
353 test(S("abcdeabcdeabcdeabcde"), "", 21, 0, 20);
354 test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 0, 20);
355 test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 1, 15);
356 test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 2, 15);
357 test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 4, 15);
358 test(S("abcdeabcdeabcdeabcde"), "abcde", 21, 5, 15);
359 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 0, 20);
360 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 1, 15);
361 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 5, 15);
362 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 9, 10);
363 test(S("abcdeabcdeabcdeabcde"), "abcdeabcde", 21, 10, 10);
364 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 0, 20);
365 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 1, 15);
366 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 10, 10);
367 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 19, 0);
368 test(S("abcdeabcdeabcdeabcde"), "abcdeabcdeabcdeabcde", 21, 20, 0);
369 }
370
main(int,char **)371 int main(int, char**)
372 {
373 {
374 typedef std::string_view S;
375 test0<S>();
376 test1<S>();
377 test2<S>();
378 test3<S>();
379 }
380
381 #if TEST_STD_VER > 11
382 {
383 typedef std::basic_string_view<char, constexpr_char_traits<char>> SV;
384 constexpr SV sv1;
385 constexpr SV sv2 { "abcde", 5 };
386
387 static_assert (sv1.rfind( "", 0, 0 ) == 0, "" );
388 static_assert (sv1.rfind( "abcde", 0, 0 ) == 0, "" );
389 static_assert (sv1.rfind( "abcde", 0, 1 ) == SV::npos, "" );
390 static_assert (sv2.rfind( "", 0, 0 ) == 0, "" );
391 static_assert (sv2.rfind( "abcde", 0, 0 ) == 0, "" );
392 static_assert (sv2.rfind( "abcde", 0, 1 ) == 0, "" );
393 }
394 #endif
395
396 return 0;
397 }
398