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 // basic_string<charT,traits,Allocator>&
12 //   replace(const_iterator i1, const_iterator i2, const basic_string& str);
13 
14 #include <string>
15 #include <algorithm>
16 #include <cassert>
17 
18 #include "test_macros.h"
19 #include "min_allocator.h"
20 
21 template <class S>
22 void
test(S s,typename S::size_type pos1,typename S::size_type n1,S str,S expected)23 test(S s, typename S::size_type pos1, typename S::size_type n1, S str, S expected)
24 {
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, str);
30     LIBCPP_ASSERT(s.__invariants());
31     assert(s == expected);
32     typename S::size_type rlen = str.size();
33     assert(s.size() == old_size - xlen + rlen);
34 }
35 
36 template <class S>
test0()37 void test0()
38 {
39     test(S(""), 0, 0, S(""), S(""));
40     test(S(""), 0, 0, S("12345"), S("12345"));
41     test(S(""), 0, 0, S("1234567890"), S("1234567890"));
42     test(S(""), 0, 0, S("12345678901234567890"), S("12345678901234567890"));
43     test(S("abcde"), 0, 0, S(""), S("abcde"));
44     test(S("abcde"), 0, 0, S("12345"), S("12345abcde"));
45     test(S("abcde"), 0, 0, S("1234567890"), S("1234567890abcde"));
46     test(S("abcde"), 0, 0, S("12345678901234567890"), S("12345678901234567890abcde"));
47     test(S("abcde"), 0, 1, S(""), S("bcde"));
48     test(S("abcde"), 0, 1, S("12345"), S("12345bcde"));
49     test(S("abcde"), 0, 1, S("1234567890"), S("1234567890bcde"));
50     test(S("abcde"), 0, 1, S("12345678901234567890"), S("12345678901234567890bcde"));
51     test(S("abcde"), 0, 2, S(""), S("cde"));
52     test(S("abcde"), 0, 2, S("12345"), S("12345cde"));
53     test(S("abcde"), 0, 2, S("1234567890"), S("1234567890cde"));
54     test(S("abcde"), 0, 2, S("12345678901234567890"), S("12345678901234567890cde"));
55     test(S("abcde"), 0, 4, S(""), S("e"));
56     test(S("abcde"), 0, 4, S("12345"), S("12345e"));
57     test(S("abcde"), 0, 4, S("1234567890"), S("1234567890e"));
58     test(S("abcde"), 0, 4, S("12345678901234567890"), S("12345678901234567890e"));
59     test(S("abcde"), 0, 5, S(""), S(""));
60     test(S("abcde"), 0, 5, S("12345"), S("12345"));
61     test(S("abcde"), 0, 5, S("1234567890"), S("1234567890"));
62     test(S("abcde"), 0, 5, S("12345678901234567890"), S("12345678901234567890"));
63     test(S("abcde"), 1, 0, S(""), S("abcde"));
64     test(S("abcde"), 1, 0, S("12345"), S("a12345bcde"));
65     test(S("abcde"), 1, 0, S("1234567890"), S("a1234567890bcde"));
66     test(S("abcde"), 1, 0, S("12345678901234567890"), S("a12345678901234567890bcde"));
67     test(S("abcde"), 1, 1, S(""), S("acde"));
68     test(S("abcde"), 1, 1, S("12345"), S("a12345cde"));
69     test(S("abcde"), 1, 1, S("1234567890"), S("a1234567890cde"));
70     test(S("abcde"), 1, 1, S("12345678901234567890"), S("a12345678901234567890cde"));
71     test(S("abcde"), 1, 2, S(""), S("ade"));
72     test(S("abcde"), 1, 2, S("12345"), S("a12345de"));
73     test(S("abcde"), 1, 2, S("1234567890"), S("a1234567890de"));
74     test(S("abcde"), 1, 2, S("12345678901234567890"), S("a12345678901234567890de"));
75     test(S("abcde"), 1, 3, S(""), S("ae"));
76     test(S("abcde"), 1, 3, S("12345"), S("a12345e"));
77     test(S("abcde"), 1, 3, S("1234567890"), S("a1234567890e"));
78     test(S("abcde"), 1, 3, S("12345678901234567890"), S("a12345678901234567890e"));
79     test(S("abcde"), 1, 4, S(""), S("a"));
80     test(S("abcde"), 1, 4, S("12345"), S("a12345"));
81     test(S("abcde"), 1, 4, S("1234567890"), S("a1234567890"));
82     test(S("abcde"), 1, 4, S("12345678901234567890"), S("a12345678901234567890"));
83     test(S("abcde"), 2, 0, S(""), S("abcde"));
84     test(S("abcde"), 2, 0, S("12345"), S("ab12345cde"));
85     test(S("abcde"), 2, 0, S("1234567890"), S("ab1234567890cde"));
86     test(S("abcde"), 2, 0, S("12345678901234567890"), S("ab12345678901234567890cde"));
87     test(S("abcde"), 2, 1, S(""), S("abde"));
88     test(S("abcde"), 2, 1, S("12345"), S("ab12345de"));
89     test(S("abcde"), 2, 1, S("1234567890"), S("ab1234567890de"));
90     test(S("abcde"), 2, 1, S("12345678901234567890"), S("ab12345678901234567890de"));
91     test(S("abcde"), 2, 2, S(""), S("abe"));
92     test(S("abcde"), 2, 2, S("12345"), S("ab12345e"));
93     test(S("abcde"), 2, 2, S("1234567890"), S("ab1234567890e"));
94     test(S("abcde"), 2, 2, S("12345678901234567890"), S("ab12345678901234567890e"));
95     test(S("abcde"), 2, 3, S(""), S("ab"));
96     test(S("abcde"), 2, 3, S("12345"), S("ab12345"));
97     test(S("abcde"), 2, 3, S("1234567890"), S("ab1234567890"));
98     test(S("abcde"), 2, 3, S("12345678901234567890"), S("ab12345678901234567890"));
99     test(S("abcde"), 4, 0, S(""), S("abcde"));
100     test(S("abcde"), 4, 0, S("12345"), S("abcd12345e"));
101     test(S("abcde"), 4, 0, S("1234567890"), S("abcd1234567890e"));
102     test(S("abcde"), 4, 0, S("12345678901234567890"), S("abcd12345678901234567890e"));
103     test(S("abcde"), 4, 1, S(""), S("abcd"));
104     test(S("abcde"), 4, 1, S("12345"), S("abcd12345"));
105     test(S("abcde"), 4, 1, S("1234567890"), S("abcd1234567890"));
106     test(S("abcde"), 4, 1, S("12345678901234567890"), S("abcd12345678901234567890"));
107     test(S("abcde"), 5, 0, S(""), S("abcde"));
108     test(S("abcde"), 5, 0, S("12345"), S("abcde12345"));
109     test(S("abcde"), 5, 0, S("1234567890"), S("abcde1234567890"));
110     test(S("abcde"), 5, 0, S("12345678901234567890"), S("abcde12345678901234567890"));
111     test(S("abcdefghij"), 0, 0, S(""), S("abcdefghij"));
112     test(S("abcdefghij"), 0, 0, S("12345"), S("12345abcdefghij"));
113     test(S("abcdefghij"), 0, 0, S("1234567890"), S("1234567890abcdefghij"));
114     test(S("abcdefghij"), 0, 0, S("12345678901234567890"), S("12345678901234567890abcdefghij"));
115     test(S("abcdefghij"), 0, 1, S(""), S("bcdefghij"));
116     test(S("abcdefghij"), 0, 1, S("12345"), S("12345bcdefghij"));
117     test(S("abcdefghij"), 0, 1, S("1234567890"), S("1234567890bcdefghij"));
118     test(S("abcdefghij"), 0, 1, S("12345678901234567890"), S("12345678901234567890bcdefghij"));
119     test(S("abcdefghij"), 0, 5, S(""), S("fghij"));
120     test(S("abcdefghij"), 0, 5, S("12345"), S("12345fghij"));
121     test(S("abcdefghij"), 0, 5, S("1234567890"), S("1234567890fghij"));
122     test(S("abcdefghij"), 0, 5, S("12345678901234567890"), S("12345678901234567890fghij"));
123     test(S("abcdefghij"), 0, 9, S(""), S("j"));
124     test(S("abcdefghij"), 0, 9, S("12345"), S("12345j"));
125     test(S("abcdefghij"), 0, 9, S("1234567890"), S("1234567890j"));
126     test(S("abcdefghij"), 0, 9, S("12345678901234567890"), S("12345678901234567890j"));
127     test(S("abcdefghij"), 0, 10, S(""), S(""));
128     test(S("abcdefghij"), 0, 10, S("12345"), S("12345"));
129     test(S("abcdefghij"), 0, 10, S("1234567890"), S("1234567890"));
130     test(S("abcdefghij"), 0, 10, S("12345678901234567890"), S("12345678901234567890"));
131     test(S("abcdefghij"), 1, 0, S(""), S("abcdefghij"));
132     test(S("abcdefghij"), 1, 0, S("12345"), S("a12345bcdefghij"));
133     test(S("abcdefghij"), 1, 0, S("1234567890"), S("a1234567890bcdefghij"));
134     test(S("abcdefghij"), 1, 0, S("12345678901234567890"), S("a12345678901234567890bcdefghij"));
135     test(S("abcdefghij"), 1, 1, S(""), S("acdefghij"));
136     test(S("abcdefghij"), 1, 1, S("12345"), S("a12345cdefghij"));
137     test(S("abcdefghij"), 1, 1, S("1234567890"), S("a1234567890cdefghij"));
138     test(S("abcdefghij"), 1, 1, S("12345678901234567890"), S("a12345678901234567890cdefghij"));
139 }
140 
141 template <class S>
test1()142 void test1()
143 {
144     test(S("abcdefghij"), 1, 4, S(""), S("afghij"));
145     test(S("abcdefghij"), 1, 4, S("12345"), S("a12345fghij"));
146     test(S("abcdefghij"), 1, 4, S("1234567890"), S("a1234567890fghij"));
147     test(S("abcdefghij"), 1, 4, S("12345678901234567890"), S("a12345678901234567890fghij"));
148     test(S("abcdefghij"), 1, 8, S(""), S("aj"));
149     test(S("abcdefghij"), 1, 8, S("12345"), S("a12345j"));
150     test(S("abcdefghij"), 1, 8, S("1234567890"), S("a1234567890j"));
151     test(S("abcdefghij"), 1, 8, S("12345678901234567890"), S("a12345678901234567890j"));
152     test(S("abcdefghij"), 1, 9, S(""), S("a"));
153     test(S("abcdefghij"), 1, 9, S("12345"), S("a12345"));
154     test(S("abcdefghij"), 1, 9, S("1234567890"), S("a1234567890"));
155     test(S("abcdefghij"), 1, 9, S("12345678901234567890"), S("a12345678901234567890"));
156     test(S("abcdefghij"), 5, 0, S(""), S("abcdefghij"));
157     test(S("abcdefghij"), 5, 0, S("12345"), S("abcde12345fghij"));
158     test(S("abcdefghij"), 5, 0, S("1234567890"), S("abcde1234567890fghij"));
159     test(S("abcdefghij"), 5, 0, S("12345678901234567890"), S("abcde12345678901234567890fghij"));
160     test(S("abcdefghij"), 5, 1, S(""), S("abcdeghij"));
161     test(S("abcdefghij"), 5, 1, S("12345"), S("abcde12345ghij"));
162     test(S("abcdefghij"), 5, 1, S("1234567890"), S("abcde1234567890ghij"));
163     test(S("abcdefghij"), 5, 1, S("12345678901234567890"), S("abcde12345678901234567890ghij"));
164     test(S("abcdefghij"), 5, 2, S(""), S("abcdehij"));
165     test(S("abcdefghij"), 5, 2, S("12345"), S("abcde12345hij"));
166     test(S("abcdefghij"), 5, 2, S("1234567890"), S("abcde1234567890hij"));
167     test(S("abcdefghij"), 5, 2, S("12345678901234567890"), S("abcde12345678901234567890hij"));
168     test(S("abcdefghij"), 5, 4, S(""), S("abcdej"));
169     test(S("abcdefghij"), 5, 4, S("12345"), S("abcde12345j"));
170     test(S("abcdefghij"), 5, 4, S("1234567890"), S("abcde1234567890j"));
171     test(S("abcdefghij"), 5, 4, S("12345678901234567890"), S("abcde12345678901234567890j"));
172     test(S("abcdefghij"), 5, 5, S(""), S("abcde"));
173     test(S("abcdefghij"), 5, 5, S("12345"), S("abcde12345"));
174     test(S("abcdefghij"), 5, 5, S("1234567890"), S("abcde1234567890"));
175     test(S("abcdefghij"), 5, 5, S("12345678901234567890"), S("abcde12345678901234567890"));
176     test(S("abcdefghij"), 9, 0, S(""), S("abcdefghij"));
177     test(S("abcdefghij"), 9, 0, S("12345"), S("abcdefghi12345j"));
178     test(S("abcdefghij"), 9, 0, S("1234567890"), S("abcdefghi1234567890j"));
179     test(S("abcdefghij"), 9, 0, S("12345678901234567890"), S("abcdefghi12345678901234567890j"));
180     test(S("abcdefghij"), 9, 1, S(""), S("abcdefghi"));
181     test(S("abcdefghij"), 9, 1, S("12345"), S("abcdefghi12345"));
182     test(S("abcdefghij"), 9, 1, S("1234567890"), S("abcdefghi1234567890"));
183     test(S("abcdefghij"), 9, 1, S("12345678901234567890"), S("abcdefghi12345678901234567890"));
184     test(S("abcdefghij"), 10, 0, S(""), S("abcdefghij"));
185     test(S("abcdefghij"), 10, 0, S("12345"), S("abcdefghij12345"));
186     test(S("abcdefghij"), 10, 0, S("1234567890"), S("abcdefghij1234567890"));
187     test(S("abcdefghij"), 10, 0, S("12345678901234567890"), S("abcdefghij12345678901234567890"));
188     test(S("abcdefghijklmnopqrst"), 0, 0, S(""), S("abcdefghijklmnopqrst"));
189     test(S("abcdefghijklmnopqrst"), 0, 0, S("12345"), S("12345abcdefghijklmnopqrst"));
190     test(S("abcdefghijklmnopqrst"), 0, 0, S("1234567890"), S("1234567890abcdefghijklmnopqrst"));
191     test(S("abcdefghijklmnopqrst"), 0, 0, S("12345678901234567890"), S("12345678901234567890abcdefghijklmnopqrst"));
192     test(S("abcdefghijklmnopqrst"), 0, 1, S(""), S("bcdefghijklmnopqrst"));
193     test(S("abcdefghijklmnopqrst"), 0, 1, S("12345"), S("12345bcdefghijklmnopqrst"));
194     test(S("abcdefghijklmnopqrst"), 0, 1, S("1234567890"), S("1234567890bcdefghijklmnopqrst"));
195     test(S("abcdefghijklmnopqrst"), 0, 1, S("12345678901234567890"), S("12345678901234567890bcdefghijklmnopqrst"));
196     test(S("abcdefghijklmnopqrst"), 0, 10, S(""), S("klmnopqrst"));
197     test(S("abcdefghijklmnopqrst"), 0, 10, S("12345"), S("12345klmnopqrst"));
198     test(S("abcdefghijklmnopqrst"), 0, 10, S("1234567890"), S("1234567890klmnopqrst"));
199     test(S("abcdefghijklmnopqrst"), 0, 10, S("12345678901234567890"), S("12345678901234567890klmnopqrst"));
200     test(S("abcdefghijklmnopqrst"), 0, 19, S(""), S("t"));
201     test(S("abcdefghijklmnopqrst"), 0, 19, S("12345"), S("12345t"));
202     test(S("abcdefghijklmnopqrst"), 0, 19, S("1234567890"), S("1234567890t"));
203     test(S("abcdefghijklmnopqrst"), 0, 19, S("12345678901234567890"), S("12345678901234567890t"));
204     test(S("abcdefghijklmnopqrst"), 0, 20, S(""), S(""));
205     test(S("abcdefghijklmnopqrst"), 0, 20, S("12345"), S("12345"));
206     test(S("abcdefghijklmnopqrst"), 0, 20, S("1234567890"), S("1234567890"));
207     test(S("abcdefghijklmnopqrst"), 0, 20, S("12345678901234567890"), S("12345678901234567890"));
208     test(S("abcdefghijklmnopqrst"), 1, 0, S(""), S("abcdefghijklmnopqrst"));
209     test(S("abcdefghijklmnopqrst"), 1, 0, S("12345"), S("a12345bcdefghijklmnopqrst"));
210     test(S("abcdefghijklmnopqrst"), 1, 0, S("1234567890"), S("a1234567890bcdefghijklmnopqrst"));
211     test(S("abcdefghijklmnopqrst"), 1, 0, S("12345678901234567890"), S("a12345678901234567890bcdefghijklmnopqrst"));
212     test(S("abcdefghijklmnopqrst"), 1, 1, S(""), S("acdefghijklmnopqrst"));
213     test(S("abcdefghijklmnopqrst"), 1, 1, S("12345"), S("a12345cdefghijklmnopqrst"));
214     test(S("abcdefghijklmnopqrst"), 1, 1, S("1234567890"), S("a1234567890cdefghijklmnopqrst"));
215     test(S("abcdefghijklmnopqrst"), 1, 1, S("12345678901234567890"), S("a12345678901234567890cdefghijklmnopqrst"));
216     test(S("abcdefghijklmnopqrst"), 1, 9, S(""), S("aklmnopqrst"));
217     test(S("abcdefghijklmnopqrst"), 1, 9, S("12345"), S("a12345klmnopqrst"));
218     test(S("abcdefghijklmnopqrst"), 1, 9, S("1234567890"), S("a1234567890klmnopqrst"));
219     test(S("abcdefghijklmnopqrst"), 1, 9, S("12345678901234567890"), S("a12345678901234567890klmnopqrst"));
220     test(S("abcdefghijklmnopqrst"), 1, 18, S(""), S("at"));
221     test(S("abcdefghijklmnopqrst"), 1, 18, S("12345"), S("a12345t"));
222     test(S("abcdefghijklmnopqrst"), 1, 18, S("1234567890"), S("a1234567890t"));
223     test(S("abcdefghijklmnopqrst"), 1, 18, S("12345678901234567890"), S("a12345678901234567890t"));
224     test(S("abcdefghijklmnopqrst"), 1, 19, S(""), S("a"));
225     test(S("abcdefghijklmnopqrst"), 1, 19, S("12345"), S("a12345"));
226     test(S("abcdefghijklmnopqrst"), 1, 19, S("1234567890"), S("a1234567890"));
227     test(S("abcdefghijklmnopqrst"), 1, 19, S("12345678901234567890"), S("a12345678901234567890"));
228     test(S("abcdefghijklmnopqrst"), 10, 0, S(""), S("abcdefghijklmnopqrst"));
229     test(S("abcdefghijklmnopqrst"), 10, 0, S("12345"), S("abcdefghij12345klmnopqrst"));
230     test(S("abcdefghijklmnopqrst"), 10, 0, S("1234567890"), S("abcdefghij1234567890klmnopqrst"));
231     test(S("abcdefghijklmnopqrst"), 10, 0, S("12345678901234567890"), S("abcdefghij12345678901234567890klmnopqrst"));
232     test(S("abcdefghijklmnopqrst"), 10, 1, S(""), S("abcdefghijlmnopqrst"));
233     test(S("abcdefghijklmnopqrst"), 10, 1, S("12345"), S("abcdefghij12345lmnopqrst"));
234     test(S("abcdefghijklmnopqrst"), 10, 1, S("1234567890"), S("abcdefghij1234567890lmnopqrst"));
235     test(S("abcdefghijklmnopqrst"), 10, 1, S("12345678901234567890"), S("abcdefghij12345678901234567890lmnopqrst"));
236     test(S("abcdefghijklmnopqrst"), 10, 5, S(""), S("abcdefghijpqrst"));
237     test(S("abcdefghijklmnopqrst"), 10, 5, S("12345"), S("abcdefghij12345pqrst"));
238     test(S("abcdefghijklmnopqrst"), 10, 5, S("1234567890"), S("abcdefghij1234567890pqrst"));
239     test(S("abcdefghijklmnopqrst"), 10, 5, S("12345678901234567890"), S("abcdefghij12345678901234567890pqrst"));
240     test(S("abcdefghijklmnopqrst"), 10, 9, S(""), S("abcdefghijt"));
241     test(S("abcdefghijklmnopqrst"), 10, 9, S("12345"), S("abcdefghij12345t"));
242     test(S("abcdefghijklmnopqrst"), 10, 9, S("1234567890"), S("abcdefghij1234567890t"));
243     test(S("abcdefghijklmnopqrst"), 10, 9, S("12345678901234567890"), S("abcdefghij12345678901234567890t"));
244 }
245 
246 template <class S>
test2()247 void test2()
248 {
249     test(S("abcdefghijklmnopqrst"), 10, 10, S(""), S("abcdefghij"));
250     test(S("abcdefghijklmnopqrst"), 10, 10, S("12345"), S("abcdefghij12345"));
251     test(S("abcdefghijklmnopqrst"), 10, 10, S("1234567890"), S("abcdefghij1234567890"));
252     test(S("abcdefghijklmnopqrst"), 10, 10, S("12345678901234567890"), S("abcdefghij12345678901234567890"));
253     test(S("abcdefghijklmnopqrst"), 19, 0, S(""), S("abcdefghijklmnopqrst"));
254     test(S("abcdefghijklmnopqrst"), 19, 0, S("12345"), S("abcdefghijklmnopqrs12345t"));
255     test(S("abcdefghijklmnopqrst"), 19, 0, S("1234567890"), S("abcdefghijklmnopqrs1234567890t"));
256     test(S("abcdefghijklmnopqrst"), 19, 0, S("12345678901234567890"), S("abcdefghijklmnopqrs12345678901234567890t"));
257     test(S("abcdefghijklmnopqrst"), 19, 1, S(""), S("abcdefghijklmnopqrs"));
258     test(S("abcdefghijklmnopqrst"), 19, 1, S("12345"), S("abcdefghijklmnopqrs12345"));
259     test(S("abcdefghijklmnopqrst"), 19, 1, S("1234567890"), S("abcdefghijklmnopqrs1234567890"));
260     test(S("abcdefghijklmnopqrst"), 19, 1, S("12345678901234567890"), S("abcdefghijklmnopqrs12345678901234567890"));
261     test(S("abcdefghijklmnopqrst"), 20, 0, S(""), S("abcdefghijklmnopqrst"));
262     test(S("abcdefghijklmnopqrst"), 20, 0, S("12345"), S("abcdefghijklmnopqrst12345"));
263     test(S("abcdefghijklmnopqrst"), 20, 0, S("1234567890"), S("abcdefghijklmnopqrst1234567890"));
264     test(S("abcdefghijklmnopqrst"), 20, 0, S("12345678901234567890"), S("abcdefghijklmnopqrst12345678901234567890"));
265 }
266 
main(int,char **)267 int main(int, char**)
268 {
269     {
270     typedef std::string S;
271     test0<S>();
272     test1<S>();
273     test2<S>();
274     }
275 #if TEST_STD_VER >= 11
276     {
277     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
278     test0<S>();
279     test1<S>();
280     test2<S>();
281     }
282 #endif
283 
284 #if TEST_STD_VER > 3
285     {   // LWG 2946
286     std::string s = "  ";
287     s.replace(s.cbegin(), s.cend(), {"abc", 1});
288     assert(s.size() == 1);
289     assert(s == "a");
290     }
291 #endif
292 
293   return 0;
294 }
295