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 // int compare(size_type pos1, size_type n1, const basic_string& str) const;
12
13 #include <string>
14 #include <stdexcept>
15 #include <cassert>
16
17 #include "test_macros.h"
18 #include "min_allocator.h"
19
sign(int x)20 int sign(int x)
21 {
22 if (x == 0)
23 return 0;
24 if (x < 0)
25 return -1;
26 return 1;
27 }
28
29 template <class S>
30 void
test(const S & s,typename S::size_type pos1,typename S::size_type n1,const S & str,int x)31 test(const S& s, typename S::size_type pos1, typename S::size_type n1,
32 const S& str, int x)
33 {
34 if (pos1 <= s.size())
35 assert(sign(s.compare(pos1, n1, str)) == sign(x));
36 #ifndef TEST_HAS_NO_EXCEPTIONS
37 else
38 {
39 try
40 {
41 TEST_IGNORE_NODISCARD s.compare(pos1, n1, str);
42 assert(false);
43 }
44 catch (std::out_of_range&)
45 {
46 assert(pos1 > s.size());
47 }
48 }
49 #endif
50 }
51
52 template <class S>
test0()53 void test0()
54 {
55 test(S(""), 0, 0, S(""), 0);
56 test(S(""), 0, 0, S("abcde"), -5);
57 test(S(""), 0, 0, S("abcdefghij"), -10);
58 test(S(""), 0, 0, S("abcdefghijklmnopqrst"), -20);
59 test(S(""), 0, 1, S(""), 0);
60 test(S(""), 0, 1, S("abcde"), -5);
61 test(S(""), 0, 1, S("abcdefghij"), -10);
62 test(S(""), 0, 1, S("abcdefghijklmnopqrst"), -20);
63 test(S(""), 1, 0, S(""), 0);
64 test(S(""), 1, 0, S("abcde"), 0);
65 test(S(""), 1, 0, S("abcdefghij"), 0);
66 test(S(""), 1, 0, S("abcdefghijklmnopqrst"), 0);
67 test(S("abcde"), 0, 0, S(""), 0);
68 test(S("abcde"), 0, 0, S("abcde"), -5);
69 test(S("abcde"), 0, 0, S("abcdefghij"), -10);
70 test(S("abcde"), 0, 0, S("abcdefghijklmnopqrst"), -20);
71 test(S("abcde"), 0, 1, S(""), 1);
72 test(S("abcde"), 0, 1, S("abcde"), -4);
73 test(S("abcde"), 0, 1, S("abcdefghij"), -9);
74 test(S("abcde"), 0, 1, S("abcdefghijklmnopqrst"), -19);
75 test(S("abcde"), 0, 2, S(""), 2);
76 test(S("abcde"), 0, 2, S("abcde"), -3);
77 test(S("abcde"), 0, 2, S("abcdefghij"), -8);
78 test(S("abcde"), 0, 2, S("abcdefghijklmnopqrst"), -18);
79 test(S("abcde"), 0, 4, S(""), 4);
80 test(S("abcde"), 0, 4, S("abcde"), -1);
81 test(S("abcde"), 0, 4, S("abcdefghij"), -6);
82 test(S("abcde"), 0, 4, S("abcdefghijklmnopqrst"), -16);
83 test(S("abcde"), 0, 5, S(""), 5);
84 test(S("abcde"), 0, 5, S("abcde"), 0);
85 test(S("abcde"), 0, 5, S("abcdefghij"), -5);
86 test(S("abcde"), 0, 5, S("abcdefghijklmnopqrst"), -15);
87 test(S("abcde"), 0, 6, S(""), 5);
88 test(S("abcde"), 0, 6, S("abcde"), 0);
89 test(S("abcde"), 0, 6, S("abcdefghij"), -5);
90 test(S("abcde"), 0, 6, S("abcdefghijklmnopqrst"), -15);
91 test(S("abcde"), 1, 0, S(""), 0);
92 test(S("abcde"), 1, 0, S("abcde"), -5);
93 test(S("abcde"), 1, 0, S("abcdefghij"), -10);
94 test(S("abcde"), 1, 0, S("abcdefghijklmnopqrst"), -20);
95 test(S("abcde"), 1, 1, S(""), 1);
96 test(S("abcde"), 1, 1, S("abcde"), 1);
97 test(S("abcde"), 1, 1, S("abcdefghij"), 1);
98 test(S("abcde"), 1, 1, S("abcdefghijklmnopqrst"), 1);
99 test(S("abcde"), 1, 2, S(""), 2);
100 test(S("abcde"), 1, 2, S("abcde"), 1);
101 test(S("abcde"), 1, 2, S("abcdefghij"), 1);
102 test(S("abcde"), 1, 2, S("abcdefghijklmnopqrst"), 1);
103 test(S("abcde"), 1, 3, S(""), 3);
104 test(S("abcde"), 1, 3, S("abcde"), 1);
105 test(S("abcde"), 1, 3, S("abcdefghij"), 1);
106 test(S("abcde"), 1, 3, S("abcdefghijklmnopqrst"), 1);
107 test(S("abcde"), 1, 4, S(""), 4);
108 test(S("abcde"), 1, 4, S("abcde"), 1);
109 test(S("abcde"), 1, 4, S("abcdefghij"), 1);
110 test(S("abcde"), 1, 4, S("abcdefghijklmnopqrst"), 1);
111 test(S("abcde"), 1, 5, S(""), 4);
112 test(S("abcde"), 1, 5, S("abcde"), 1);
113 test(S("abcde"), 1, 5, S("abcdefghij"), 1);
114 test(S("abcde"), 1, 5, S("abcdefghijklmnopqrst"), 1);
115 test(S("abcde"), 2, 0, S(""), 0);
116 test(S("abcde"), 2, 0, S("abcde"), -5);
117 test(S("abcde"), 2, 0, S("abcdefghij"), -10);
118 test(S("abcde"), 2, 0, S("abcdefghijklmnopqrst"), -20);
119 test(S("abcde"), 2, 1, S(""), 1);
120 test(S("abcde"), 2, 1, S("abcde"), 2);
121 test(S("abcde"), 2, 1, S("abcdefghij"), 2);
122 test(S("abcde"), 2, 1, S("abcdefghijklmnopqrst"), 2);
123 test(S("abcde"), 2, 2, S(""), 2);
124 test(S("abcde"), 2, 2, S("abcde"), 2);
125 test(S("abcde"), 2, 2, S("abcdefghij"), 2);
126 test(S("abcde"), 2, 2, S("abcdefghijklmnopqrst"), 2);
127 test(S("abcde"), 2, 3, S(""), 3);
128 test(S("abcde"), 2, 3, S("abcde"), 2);
129 test(S("abcde"), 2, 3, S("abcdefghij"), 2);
130 test(S("abcde"), 2, 3, S("abcdefghijklmnopqrst"), 2);
131 test(S("abcde"), 2, 4, S(""), 3);
132 test(S("abcde"), 2, 4, S("abcde"), 2);
133 test(S("abcde"), 2, 4, S("abcdefghij"), 2);
134 test(S("abcde"), 2, 4, S("abcdefghijklmnopqrst"), 2);
135 test(S("abcde"), 4, 0, S(""), 0);
136 test(S("abcde"), 4, 0, S("abcde"), -5);
137 test(S("abcde"), 4, 0, S("abcdefghij"), -10);
138 test(S("abcde"), 4, 0, S("abcdefghijklmnopqrst"), -20);
139 test(S("abcde"), 4, 1, S(""), 1);
140 test(S("abcde"), 4, 1, S("abcde"), 4);
141 test(S("abcde"), 4, 1, S("abcdefghij"), 4);
142 test(S("abcde"), 4, 1, S("abcdefghijklmnopqrst"), 4);
143 test(S("abcde"), 4, 2, S(""), 1);
144 test(S("abcde"), 4, 2, S("abcde"), 4);
145 test(S("abcde"), 4, 2, S("abcdefghij"), 4);
146 test(S("abcde"), 4, 2, S("abcdefghijklmnopqrst"), 4);
147 test(S("abcde"), 5, 0, S(""), 0);
148 test(S("abcde"), 5, 0, S("abcde"), -5);
149 test(S("abcde"), 5, 0, S("abcdefghij"), -10);
150 test(S("abcde"), 5, 0, S("abcdefghijklmnopqrst"), -20);
151 test(S("abcde"), 5, 1, S(""), 0);
152 test(S("abcde"), 5, 1, S("abcde"), -5);
153 test(S("abcde"), 5, 1, S("abcdefghij"), -10);
154 test(S("abcde"), 5, 1, S("abcdefghijklmnopqrst"), -20);
155 }
156
157 template <class S>
test1()158 void test1()
159 {
160 test(S("abcde"), 6, 0, S(""), 0);
161 test(S("abcde"), 6, 0, S("abcde"), 0);
162 test(S("abcde"), 6, 0, S("abcdefghij"), 0);
163 test(S("abcde"), 6, 0, S("abcdefghijklmnopqrst"), 0);
164 test(S("abcdefghij"), 0, 0, S(""), 0);
165 test(S("abcdefghij"), 0, 0, S("abcde"), -5);
166 test(S("abcdefghij"), 0, 0, S("abcdefghij"), -10);
167 test(S("abcdefghij"), 0, 0, S("abcdefghijklmnopqrst"), -20);
168 test(S("abcdefghij"), 0, 1, S(""), 1);
169 test(S("abcdefghij"), 0, 1, S("abcde"), -4);
170 test(S("abcdefghij"), 0, 1, S("abcdefghij"), -9);
171 test(S("abcdefghij"), 0, 1, S("abcdefghijklmnopqrst"), -19);
172 test(S("abcdefghij"), 0, 5, S(""), 5);
173 test(S("abcdefghij"), 0, 5, S("abcde"), 0);
174 test(S("abcdefghij"), 0, 5, S("abcdefghij"), -5);
175 test(S("abcdefghij"), 0, 5, S("abcdefghijklmnopqrst"), -15);
176 test(S("abcdefghij"), 0, 9, S(""), 9);
177 test(S("abcdefghij"), 0, 9, S("abcde"), 4);
178 test(S("abcdefghij"), 0, 9, S("abcdefghij"), -1);
179 test(S("abcdefghij"), 0, 9, S("abcdefghijklmnopqrst"), -11);
180 test(S("abcdefghij"), 0, 10, S(""), 10);
181 test(S("abcdefghij"), 0, 10, S("abcde"), 5);
182 test(S("abcdefghij"), 0, 10, S("abcdefghij"), 0);
183 test(S("abcdefghij"), 0, 10, S("abcdefghijklmnopqrst"), -10);
184 test(S("abcdefghij"), 0, 11, S(""), 10);
185 test(S("abcdefghij"), 0, 11, S("abcde"), 5);
186 test(S("abcdefghij"), 0, 11, S("abcdefghij"), 0);
187 test(S("abcdefghij"), 0, 11, S("abcdefghijklmnopqrst"), -10);
188 test(S("abcdefghij"), 1, 0, S(""), 0);
189 test(S("abcdefghij"), 1, 0, S("abcde"), -5);
190 test(S("abcdefghij"), 1, 0, S("abcdefghij"), -10);
191 test(S("abcdefghij"), 1, 0, S("abcdefghijklmnopqrst"), -20);
192 test(S("abcdefghij"), 1, 1, S(""), 1);
193 test(S("abcdefghij"), 1, 1, S("abcde"), 1);
194 test(S("abcdefghij"), 1, 1, S("abcdefghij"), 1);
195 test(S("abcdefghij"), 1, 1, S("abcdefghijklmnopqrst"), 1);
196 test(S("abcdefghij"), 1, 4, S(""), 4);
197 test(S("abcdefghij"), 1, 4, S("abcde"), 1);
198 test(S("abcdefghij"), 1, 4, S("abcdefghij"), 1);
199 test(S("abcdefghij"), 1, 4, S("abcdefghijklmnopqrst"), 1);
200 test(S("abcdefghij"), 1, 8, S(""), 8);
201 test(S("abcdefghij"), 1, 8, S("abcde"), 1);
202 test(S("abcdefghij"), 1, 8, S("abcdefghij"), 1);
203 test(S("abcdefghij"), 1, 8, S("abcdefghijklmnopqrst"), 1);
204 test(S("abcdefghij"), 1, 9, S(""), 9);
205 test(S("abcdefghij"), 1, 9, S("abcde"), 1);
206 test(S("abcdefghij"), 1, 9, S("abcdefghij"), 1);
207 test(S("abcdefghij"), 1, 9, S("abcdefghijklmnopqrst"), 1);
208 test(S("abcdefghij"), 1, 10, S(""), 9);
209 test(S("abcdefghij"), 1, 10, S("abcde"), 1);
210 test(S("abcdefghij"), 1, 10, S("abcdefghij"), 1);
211 test(S("abcdefghij"), 1, 10, S("abcdefghijklmnopqrst"), 1);
212 test(S("abcdefghij"), 5, 0, S(""), 0);
213 test(S("abcdefghij"), 5, 0, S("abcde"), -5);
214 test(S("abcdefghij"), 5, 0, S("abcdefghij"), -10);
215 test(S("abcdefghij"), 5, 0, S("abcdefghijklmnopqrst"), -20);
216 test(S("abcdefghij"), 5, 1, S(""), 1);
217 test(S("abcdefghij"), 5, 1, S("abcde"), 5);
218 test(S("abcdefghij"), 5, 1, S("abcdefghij"), 5);
219 test(S("abcdefghij"), 5, 1, S("abcdefghijklmnopqrst"), 5);
220 test(S("abcdefghij"), 5, 2, S(""), 2);
221 test(S("abcdefghij"), 5, 2, S("abcde"), 5);
222 test(S("abcdefghij"), 5, 2, S("abcdefghij"), 5);
223 test(S("abcdefghij"), 5, 2, S("abcdefghijklmnopqrst"), 5);
224 test(S("abcdefghij"), 5, 4, S(""), 4);
225 test(S("abcdefghij"), 5, 4, S("abcde"), 5);
226 test(S("abcdefghij"), 5, 4, S("abcdefghij"), 5);
227 test(S("abcdefghij"), 5, 4, S("abcdefghijklmnopqrst"), 5);
228 test(S("abcdefghij"), 5, 5, S(""), 5);
229 test(S("abcdefghij"), 5, 5, S("abcde"), 5);
230 test(S("abcdefghij"), 5, 5, S("abcdefghij"), 5);
231 test(S("abcdefghij"), 5, 5, S("abcdefghijklmnopqrst"), 5);
232 test(S("abcdefghij"), 5, 6, S(""), 5);
233 test(S("abcdefghij"), 5, 6, S("abcde"), 5);
234 test(S("abcdefghij"), 5, 6, S("abcdefghij"), 5);
235 test(S("abcdefghij"), 5, 6, S("abcdefghijklmnopqrst"), 5);
236 test(S("abcdefghij"), 9, 0, S(""), 0);
237 test(S("abcdefghij"), 9, 0, S("abcde"), -5);
238 test(S("abcdefghij"), 9, 0, S("abcdefghij"), -10);
239 test(S("abcdefghij"), 9, 0, S("abcdefghijklmnopqrst"), -20);
240 test(S("abcdefghij"), 9, 1, S(""), 1);
241 test(S("abcdefghij"), 9, 1, S("abcde"), 9);
242 test(S("abcdefghij"), 9, 1, S("abcdefghij"), 9);
243 test(S("abcdefghij"), 9, 1, S("abcdefghijklmnopqrst"), 9);
244 test(S("abcdefghij"), 9, 2, S(""), 1);
245 test(S("abcdefghij"), 9, 2, S("abcde"), 9);
246 test(S("abcdefghij"), 9, 2, S("abcdefghij"), 9);
247 test(S("abcdefghij"), 9, 2, S("abcdefghijklmnopqrst"), 9);
248 test(S("abcdefghij"), 10, 0, S(""), 0);
249 test(S("abcdefghij"), 10, 0, S("abcde"), -5);
250 test(S("abcdefghij"), 10, 0, S("abcdefghij"), -10);
251 test(S("abcdefghij"), 10, 0, S("abcdefghijklmnopqrst"), -20);
252 test(S("abcdefghij"), 10, 1, S(""), 0);
253 test(S("abcdefghij"), 10, 1, S("abcde"), -5);
254 test(S("abcdefghij"), 10, 1, S("abcdefghij"), -10);
255 test(S("abcdefghij"), 10, 1, S("abcdefghijklmnopqrst"), -20);
256 test(S("abcdefghij"), 11, 0, S(""), 0);
257 test(S("abcdefghij"), 11, 0, S("abcde"), 0);
258 test(S("abcdefghij"), 11, 0, S("abcdefghij"), 0);
259 test(S("abcdefghij"), 11, 0, S("abcdefghijklmnopqrst"), 0);
260 }
261
262 template <class S>
test2()263 void test2()
264 {
265 test(S("abcdefghijklmnopqrst"), 0, 0, S(""), 0);
266 test(S("abcdefghijklmnopqrst"), 0, 0, S("abcde"), -5);
267 test(S("abcdefghijklmnopqrst"), 0, 0, S("abcdefghij"), -10);
268 test(S("abcdefghijklmnopqrst"), 0, 0, S("abcdefghijklmnopqrst"), -20);
269 test(S("abcdefghijklmnopqrst"), 0, 1, S(""), 1);
270 test(S("abcdefghijklmnopqrst"), 0, 1, S("abcde"), -4);
271 test(S("abcdefghijklmnopqrst"), 0, 1, S("abcdefghij"), -9);
272 test(S("abcdefghijklmnopqrst"), 0, 1, S("abcdefghijklmnopqrst"), -19);
273 test(S("abcdefghijklmnopqrst"), 0, 10, S(""), 10);
274 test(S("abcdefghijklmnopqrst"), 0, 10, S("abcde"), 5);
275 test(S("abcdefghijklmnopqrst"), 0, 10, S("abcdefghij"), 0);
276 test(S("abcdefghijklmnopqrst"), 0, 10, S("abcdefghijklmnopqrst"), -10);
277 test(S("abcdefghijklmnopqrst"), 0, 19, S(""), 19);
278 test(S("abcdefghijklmnopqrst"), 0, 19, S("abcde"), 14);
279 test(S("abcdefghijklmnopqrst"), 0, 19, S("abcdefghij"), 9);
280 test(S("abcdefghijklmnopqrst"), 0, 19, S("abcdefghijklmnopqrst"), -1);
281 test(S("abcdefghijklmnopqrst"), 0, 20, S(""), 20);
282 test(S("abcdefghijklmnopqrst"), 0, 20, S("abcde"), 15);
283 test(S("abcdefghijklmnopqrst"), 0, 20, S("abcdefghij"), 10);
284 test(S("abcdefghijklmnopqrst"), 0, 20, S("abcdefghijklmnopqrst"), 0);
285 test(S("abcdefghijklmnopqrst"), 0, 21, S(""), 20);
286 test(S("abcdefghijklmnopqrst"), 0, 21, S("abcde"), 15);
287 test(S("abcdefghijklmnopqrst"), 0, 21, S("abcdefghij"), 10);
288 test(S("abcdefghijklmnopqrst"), 0, 21, S("abcdefghijklmnopqrst"), 0);
289 test(S("abcdefghijklmnopqrst"), 1, 0, S(""), 0);
290 test(S("abcdefghijklmnopqrst"), 1, 0, S("abcde"), -5);
291 test(S("abcdefghijklmnopqrst"), 1, 0, S("abcdefghij"), -10);
292 test(S("abcdefghijklmnopqrst"), 1, 0, S("abcdefghijklmnopqrst"), -20);
293 test(S("abcdefghijklmnopqrst"), 1, 1, S(""), 1);
294 test(S("abcdefghijklmnopqrst"), 1, 1, S("abcde"), 1);
295 test(S("abcdefghijklmnopqrst"), 1, 1, S("abcdefghij"), 1);
296 test(S("abcdefghijklmnopqrst"), 1, 1, S("abcdefghijklmnopqrst"), 1);
297 test(S("abcdefghijklmnopqrst"), 1, 9, S(""), 9);
298 test(S("abcdefghijklmnopqrst"), 1, 9, S("abcde"), 1);
299 test(S("abcdefghijklmnopqrst"), 1, 9, S("abcdefghij"), 1);
300 test(S("abcdefghijklmnopqrst"), 1, 9, S("abcdefghijklmnopqrst"), 1);
301 test(S("abcdefghijklmnopqrst"), 1, 18, S(""), 18);
302 test(S("abcdefghijklmnopqrst"), 1, 18, S("abcde"), 1);
303 test(S("abcdefghijklmnopqrst"), 1, 18, S("abcdefghij"), 1);
304 test(S("abcdefghijklmnopqrst"), 1, 18, S("abcdefghijklmnopqrst"), 1);
305 test(S("abcdefghijklmnopqrst"), 1, 19, S(""), 19);
306 test(S("abcdefghijklmnopqrst"), 1, 19, S("abcde"), 1);
307 test(S("abcdefghijklmnopqrst"), 1, 19, S("abcdefghij"), 1);
308 test(S("abcdefghijklmnopqrst"), 1, 19, S("abcdefghijklmnopqrst"), 1);
309 test(S("abcdefghijklmnopqrst"), 1, 20, S(""), 19);
310 test(S("abcdefghijklmnopqrst"), 1, 20, S("abcde"), 1);
311 test(S("abcdefghijklmnopqrst"), 1, 20, S("abcdefghij"), 1);
312 test(S("abcdefghijklmnopqrst"), 1, 20, S("abcdefghijklmnopqrst"), 1);
313 test(S("abcdefghijklmnopqrst"), 10, 0, S(""), 0);
314 test(S("abcdefghijklmnopqrst"), 10, 0, S("abcde"), -5);
315 test(S("abcdefghijklmnopqrst"), 10, 0, S("abcdefghij"), -10);
316 test(S("abcdefghijklmnopqrst"), 10, 0, S("abcdefghijklmnopqrst"), -20);
317 test(S("abcdefghijklmnopqrst"), 10, 1, S(""), 1);
318 test(S("abcdefghijklmnopqrst"), 10, 1, S("abcde"), 10);
319 test(S("abcdefghijklmnopqrst"), 10, 1, S("abcdefghij"), 10);
320 test(S("abcdefghijklmnopqrst"), 10, 1, S("abcdefghijklmnopqrst"), 10);
321 test(S("abcdefghijklmnopqrst"), 10, 5, S(""), 5);
322 test(S("abcdefghijklmnopqrst"), 10, 5, S("abcde"), 10);
323 test(S("abcdefghijklmnopqrst"), 10, 5, S("abcdefghij"), 10);
324 test(S("abcdefghijklmnopqrst"), 10, 5, S("abcdefghijklmnopqrst"), 10);
325 test(S("abcdefghijklmnopqrst"), 10, 9, S(""), 9);
326 test(S("abcdefghijklmnopqrst"), 10, 9, S("abcde"), 10);
327 test(S("abcdefghijklmnopqrst"), 10, 9, S("abcdefghij"), 10);
328 test(S("abcdefghijklmnopqrst"), 10, 9, S("abcdefghijklmnopqrst"), 10);
329 test(S("abcdefghijklmnopqrst"), 10, 10, S(""), 10);
330 test(S("abcdefghijklmnopqrst"), 10, 10, S("abcde"), 10);
331 test(S("abcdefghijklmnopqrst"), 10, 10, S("abcdefghij"), 10);
332 test(S("abcdefghijklmnopqrst"), 10, 10, S("abcdefghijklmnopqrst"), 10);
333 test(S("abcdefghijklmnopqrst"), 10, 11, S(""), 10);
334 test(S("abcdefghijklmnopqrst"), 10, 11, S("abcde"), 10);
335 test(S("abcdefghijklmnopqrst"), 10, 11, S("abcdefghij"), 10);
336 test(S("abcdefghijklmnopqrst"), 10, 11, S("abcdefghijklmnopqrst"), 10);
337 test(S("abcdefghijklmnopqrst"), 19, 0, S(""), 0);
338 test(S("abcdefghijklmnopqrst"), 19, 0, S("abcde"), -5);
339 test(S("abcdefghijklmnopqrst"), 19, 0, S("abcdefghij"), -10);
340 test(S("abcdefghijklmnopqrst"), 19, 0, S("abcdefghijklmnopqrst"), -20);
341 test(S("abcdefghijklmnopqrst"), 19, 1, S(""), 1);
342 test(S("abcdefghijklmnopqrst"), 19, 1, S("abcde"), 19);
343 test(S("abcdefghijklmnopqrst"), 19, 1, S("abcdefghij"), 19);
344 test(S("abcdefghijklmnopqrst"), 19, 1, S("abcdefghijklmnopqrst"), 19);
345 test(S("abcdefghijklmnopqrst"), 19, 2, S(""), 1);
346 test(S("abcdefghijklmnopqrst"), 19, 2, S("abcde"), 19);
347 test(S("abcdefghijklmnopqrst"), 19, 2, S("abcdefghij"), 19);
348 test(S("abcdefghijklmnopqrst"), 19, 2, S("abcdefghijklmnopqrst"), 19);
349 test(S("abcdefghijklmnopqrst"), 20, 0, S(""), 0);
350 test(S("abcdefghijklmnopqrst"), 20, 0, S("abcde"), -5);
351 test(S("abcdefghijklmnopqrst"), 20, 0, S("abcdefghij"), -10);
352 test(S("abcdefghijklmnopqrst"), 20, 0, S("abcdefghijklmnopqrst"), -20);
353 test(S("abcdefghijklmnopqrst"), 20, 1, S(""), 0);
354 test(S("abcdefghijklmnopqrst"), 20, 1, S("abcde"), -5);
355 test(S("abcdefghijklmnopqrst"), 20, 1, S("abcdefghij"), -10);
356 test(S("abcdefghijklmnopqrst"), 20, 1, S("abcdefghijklmnopqrst"), -20);
357 test(S("abcdefghijklmnopqrst"), 21, 0, S(""), 0);
358 test(S("abcdefghijklmnopqrst"), 21, 0, S("abcde"), 0);
359 test(S("abcdefghijklmnopqrst"), 21, 0, S("abcdefghij"), 0);
360 test(S("abcdefghijklmnopqrst"), 21, 0, S("abcdefghijklmnopqrst"), 0);
361 }
362
main(int,char **)363 int main(int, char**)
364 {
365 {
366 typedef std::string S;
367 test0<S>();
368 test1<S>();
369 test2<S>();
370 }
371 #if TEST_STD_VER >= 11
372 {
373 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
374 test0<S>();
375 test1<S>();
376 test2<S>();
377 }
378 #endif
379
380 #if TEST_STD_VER > 3
381 { // LWG 2946
382 std::string s = " !";
383 assert(s.compare(0, 1, {"abc", 1}) < 0);
384 }
385 #endif
386
387 return 0;
388 }
389