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 charT* s, size_type n);
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,const typename S::value_type * str,typename S::size_type n2,S expected)23 test(S s, typename S::size_type pos1, typename S::size_type n1, const typename S::value_type* str,
24      typename S::size_type n2, S expected)
25 {
26     typename S::size_type old_size = s.size();
27     typename S::const_iterator first = s.begin() + pos1;
28     typename S::const_iterator last = s.begin() + pos1 + n1;
29     typename S::size_type xlen = last - first;
30     s.replace(first, last, str, n2);
31     LIBCPP_ASSERT(s.__invariants());
32     assert(s == expected);
33     typename S::size_type rlen = n2;
34     assert(s.size() == old_size - xlen + rlen);
35 }
36 
37 template <class S>
test0()38 void test0()
39 {
40     test(S(""), 0, 0, "", 0, S(""));
41     test(S(""), 0, 0, "12345", 0, S(""));
42     test(S(""), 0, 0, "12345", 1, S("1"));
43     test(S(""), 0, 0, "12345", 2, S("12"));
44     test(S(""), 0, 0, "12345", 4, S("1234"));
45     test(S(""), 0, 0, "12345", 5, S("12345"));
46     test(S(""), 0, 0, "1234567890", 0, S(""));
47     test(S(""), 0, 0, "1234567890", 1, S("1"));
48     test(S(""), 0, 0, "1234567890", 5, S("12345"));
49     test(S(""), 0, 0, "1234567890", 9, S("123456789"));
50     test(S(""), 0, 0, "1234567890", 10, S("1234567890"));
51     test(S(""), 0, 0, "12345678901234567890", 0, S(""));
52     test(S(""), 0, 0, "12345678901234567890", 1, S("1"));
53     test(S(""), 0, 0, "12345678901234567890", 10, S("1234567890"));
54     test(S(""), 0, 0, "12345678901234567890", 19, S("1234567890123456789"));
55     test(S(""), 0, 0, "12345678901234567890", 20, S("12345678901234567890"));
56     test(S("abcde"), 0, 0, "", 0, S("abcde"));
57     test(S("abcde"), 0, 0, "12345", 0, S("abcde"));
58     test(S("abcde"), 0, 0, "12345", 1, S("1abcde"));
59     test(S("abcde"), 0, 0, "12345", 2, S("12abcde"));
60     test(S("abcde"), 0, 0, "12345", 4, S("1234abcde"));
61     test(S("abcde"), 0, 0, "12345", 5, S("12345abcde"));
62     test(S("abcde"), 0, 0, "1234567890", 0, S("abcde"));
63     test(S("abcde"), 0, 0, "1234567890", 1, S("1abcde"));
64     test(S("abcde"), 0, 0, "1234567890", 5, S("12345abcde"));
65     test(S("abcde"), 0, 0, "1234567890", 9, S("123456789abcde"));
66     test(S("abcde"), 0, 0, "1234567890", 10, S("1234567890abcde"));
67     test(S("abcde"), 0, 0, "12345678901234567890", 0, S("abcde"));
68     test(S("abcde"), 0, 0, "12345678901234567890", 1, S("1abcde"));
69     test(S("abcde"), 0, 0, "12345678901234567890", 10, S("1234567890abcde"));
70     test(S("abcde"), 0, 0, "12345678901234567890", 19, S("1234567890123456789abcde"));
71     test(S("abcde"), 0, 0, "12345678901234567890", 20, S("12345678901234567890abcde"));
72     test(S("abcde"), 0, 1, "", 0, S("bcde"));
73     test(S("abcde"), 0, 1, "12345", 0, S("bcde"));
74     test(S("abcde"), 0, 1, "12345", 1, S("1bcde"));
75     test(S("abcde"), 0, 1, "12345", 2, S("12bcde"));
76     test(S("abcde"), 0, 1, "12345", 4, S("1234bcde"));
77     test(S("abcde"), 0, 1, "12345", 5, S("12345bcde"));
78     test(S("abcde"), 0, 1, "1234567890", 0, S("bcde"));
79     test(S("abcde"), 0, 1, "1234567890", 1, S("1bcde"));
80     test(S("abcde"), 0, 1, "1234567890", 5, S("12345bcde"));
81     test(S("abcde"), 0, 1, "1234567890", 9, S("123456789bcde"));
82     test(S("abcde"), 0, 1, "1234567890", 10, S("1234567890bcde"));
83     test(S("abcde"), 0, 1, "12345678901234567890", 0, S("bcde"));
84     test(S("abcde"), 0, 1, "12345678901234567890", 1, S("1bcde"));
85     test(S("abcde"), 0, 1, "12345678901234567890", 10, S("1234567890bcde"));
86     test(S("abcde"), 0, 1, "12345678901234567890", 19, S("1234567890123456789bcde"));
87     test(S("abcde"), 0, 1, "12345678901234567890", 20, S("12345678901234567890bcde"));
88     test(S("abcde"), 0, 2, "", 0, S("cde"));
89     test(S("abcde"), 0, 2, "12345", 0, S("cde"));
90     test(S("abcde"), 0, 2, "12345", 1, S("1cde"));
91     test(S("abcde"), 0, 2, "12345", 2, S("12cde"));
92     test(S("abcde"), 0, 2, "12345", 4, S("1234cde"));
93     test(S("abcde"), 0, 2, "12345", 5, S("12345cde"));
94     test(S("abcde"), 0, 2, "1234567890", 0, S("cde"));
95     test(S("abcde"), 0, 2, "1234567890", 1, S("1cde"));
96     test(S("abcde"), 0, 2, "1234567890", 5, S("12345cde"));
97     test(S("abcde"), 0, 2, "1234567890", 9, S("123456789cde"));
98     test(S("abcde"), 0, 2, "1234567890", 10, S("1234567890cde"));
99     test(S("abcde"), 0, 2, "12345678901234567890", 0, S("cde"));
100     test(S("abcde"), 0, 2, "12345678901234567890", 1, S("1cde"));
101     test(S("abcde"), 0, 2, "12345678901234567890", 10, S("1234567890cde"));
102     test(S("abcde"), 0, 2, "12345678901234567890", 19, S("1234567890123456789cde"));
103     test(S("abcde"), 0, 2, "12345678901234567890", 20, S("12345678901234567890cde"));
104     test(S("abcde"), 0, 4, "", 0, S("e"));
105     test(S("abcde"), 0, 4, "12345", 0, S("e"));
106     test(S("abcde"), 0, 4, "12345", 1, S("1e"));
107     test(S("abcde"), 0, 4, "12345", 2, S("12e"));
108     test(S("abcde"), 0, 4, "12345", 4, S("1234e"));
109     test(S("abcde"), 0, 4, "12345", 5, S("12345e"));
110     test(S("abcde"), 0, 4, "1234567890", 0, S("e"));
111     test(S("abcde"), 0, 4, "1234567890", 1, S("1e"));
112     test(S("abcde"), 0, 4, "1234567890", 5, S("12345e"));
113     test(S("abcde"), 0, 4, "1234567890", 9, S("123456789e"));
114     test(S("abcde"), 0, 4, "1234567890", 10, S("1234567890e"));
115     test(S("abcde"), 0, 4, "12345678901234567890", 0, S("e"));
116     test(S("abcde"), 0, 4, "12345678901234567890", 1, S("1e"));
117     test(S("abcde"), 0, 4, "12345678901234567890", 10, S("1234567890e"));
118     test(S("abcde"), 0, 4, "12345678901234567890", 19, S("1234567890123456789e"));
119     test(S("abcde"), 0, 4, "12345678901234567890", 20, S("12345678901234567890e"));
120     test(S("abcde"), 0, 5, "", 0, S(""));
121     test(S("abcde"), 0, 5, "12345", 0, S(""));
122     test(S("abcde"), 0, 5, "12345", 1, S("1"));
123     test(S("abcde"), 0, 5, "12345", 2, S("12"));
124     test(S("abcde"), 0, 5, "12345", 4, S("1234"));
125     test(S("abcde"), 0, 5, "12345", 5, S("12345"));
126     test(S("abcde"), 0, 5, "1234567890", 0, S(""));
127     test(S("abcde"), 0, 5, "1234567890", 1, S("1"));
128     test(S("abcde"), 0, 5, "1234567890", 5, S("12345"));
129     test(S("abcde"), 0, 5, "1234567890", 9, S("123456789"));
130     test(S("abcde"), 0, 5, "1234567890", 10, S("1234567890"));
131     test(S("abcde"), 0, 5, "12345678901234567890", 0, S(""));
132     test(S("abcde"), 0, 5, "12345678901234567890", 1, S("1"));
133     test(S("abcde"), 0, 5, "12345678901234567890", 10, S("1234567890"));
134     test(S("abcde"), 0, 5, "12345678901234567890", 19, S("1234567890123456789"));
135     test(S("abcde"), 0, 5, "12345678901234567890", 20, S("12345678901234567890"));
136     test(S("abcde"), 1, 0, "", 0, S("abcde"));
137     test(S("abcde"), 1, 0, "12345", 0, S("abcde"));
138     test(S("abcde"), 1, 0, "12345", 1, S("a1bcde"));
139     test(S("abcde"), 1, 0, "12345", 2, S("a12bcde"));
140 }
141 
142 template <class S>
test1()143 void test1()
144 {
145     test(S("abcde"), 1, 0, "12345", 4, S("a1234bcde"));
146     test(S("abcde"), 1, 0, "12345", 5, S("a12345bcde"));
147     test(S("abcde"), 1, 0, "1234567890", 0, S("abcde"));
148     test(S("abcde"), 1, 0, "1234567890", 1, S("a1bcde"));
149     test(S("abcde"), 1, 0, "1234567890", 5, S("a12345bcde"));
150     test(S("abcde"), 1, 0, "1234567890", 9, S("a123456789bcde"));
151     test(S("abcde"), 1, 0, "1234567890", 10, S("a1234567890bcde"));
152     test(S("abcde"), 1, 0, "12345678901234567890", 0, S("abcde"));
153     test(S("abcde"), 1, 0, "12345678901234567890", 1, S("a1bcde"));
154     test(S("abcde"), 1, 0, "12345678901234567890", 10, S("a1234567890bcde"));
155     test(S("abcde"), 1, 0, "12345678901234567890", 19, S("a1234567890123456789bcde"));
156     test(S("abcde"), 1, 0, "12345678901234567890", 20, S("a12345678901234567890bcde"));
157     test(S("abcde"), 1, 1, "", 0, S("acde"));
158     test(S("abcde"), 1, 1, "12345", 0, S("acde"));
159     test(S("abcde"), 1, 1, "12345", 1, S("a1cde"));
160     test(S("abcde"), 1, 1, "12345", 2, S("a12cde"));
161     test(S("abcde"), 1, 1, "12345", 4, S("a1234cde"));
162     test(S("abcde"), 1, 1, "12345", 5, S("a12345cde"));
163     test(S("abcde"), 1, 1, "1234567890", 0, S("acde"));
164     test(S("abcde"), 1, 1, "1234567890", 1, S("a1cde"));
165     test(S("abcde"), 1, 1, "1234567890", 5, S("a12345cde"));
166     test(S("abcde"), 1, 1, "1234567890", 9, S("a123456789cde"));
167     test(S("abcde"), 1, 1, "1234567890", 10, S("a1234567890cde"));
168     test(S("abcde"), 1, 1, "12345678901234567890", 0, S("acde"));
169     test(S("abcde"), 1, 1, "12345678901234567890", 1, S("a1cde"));
170     test(S("abcde"), 1, 1, "12345678901234567890", 10, S("a1234567890cde"));
171     test(S("abcde"), 1, 1, "12345678901234567890", 19, S("a1234567890123456789cde"));
172     test(S("abcde"), 1, 1, "12345678901234567890", 20, S("a12345678901234567890cde"));
173     test(S("abcde"), 1, 2, "", 0, S("ade"));
174     test(S("abcde"), 1, 2, "12345", 0, S("ade"));
175     test(S("abcde"), 1, 2, "12345", 1, S("a1de"));
176     test(S("abcde"), 1, 2, "12345", 2, S("a12de"));
177     test(S("abcde"), 1, 2, "12345", 4, S("a1234de"));
178     test(S("abcde"), 1, 2, "12345", 5, S("a12345de"));
179     test(S("abcde"), 1, 2, "1234567890", 0, S("ade"));
180     test(S("abcde"), 1, 2, "1234567890", 1, S("a1de"));
181     test(S("abcde"), 1, 2, "1234567890", 5, S("a12345de"));
182     test(S("abcde"), 1, 2, "1234567890", 9, S("a123456789de"));
183     test(S("abcde"), 1, 2, "1234567890", 10, S("a1234567890de"));
184     test(S("abcde"), 1, 2, "12345678901234567890", 0, S("ade"));
185     test(S("abcde"), 1, 2, "12345678901234567890", 1, S("a1de"));
186     test(S("abcde"), 1, 2, "12345678901234567890", 10, S("a1234567890de"));
187     test(S("abcde"), 1, 2, "12345678901234567890", 19, S("a1234567890123456789de"));
188     test(S("abcde"), 1, 2, "12345678901234567890", 20, S("a12345678901234567890de"));
189     test(S("abcde"), 1, 3, "", 0, S("ae"));
190     test(S("abcde"), 1, 3, "12345", 0, S("ae"));
191     test(S("abcde"), 1, 3, "12345", 1, S("a1e"));
192     test(S("abcde"), 1, 3, "12345", 2, S("a12e"));
193     test(S("abcde"), 1, 3, "12345", 4, S("a1234e"));
194     test(S("abcde"), 1, 3, "12345", 5, S("a12345e"));
195     test(S("abcde"), 1, 3, "1234567890", 0, S("ae"));
196     test(S("abcde"), 1, 3, "1234567890", 1, S("a1e"));
197     test(S("abcde"), 1, 3, "1234567890", 5, S("a12345e"));
198     test(S("abcde"), 1, 3, "1234567890", 9, S("a123456789e"));
199     test(S("abcde"), 1, 3, "1234567890", 10, S("a1234567890e"));
200     test(S("abcde"), 1, 3, "12345678901234567890", 0, S("ae"));
201     test(S("abcde"), 1, 3, "12345678901234567890", 1, S("a1e"));
202     test(S("abcde"), 1, 3, "12345678901234567890", 10, S("a1234567890e"));
203     test(S("abcde"), 1, 3, "12345678901234567890", 19, S("a1234567890123456789e"));
204     test(S("abcde"), 1, 3, "12345678901234567890", 20, S("a12345678901234567890e"));
205     test(S("abcde"), 1, 4, "", 0, S("a"));
206     test(S("abcde"), 1, 4, "12345", 0, S("a"));
207     test(S("abcde"), 1, 4, "12345", 1, S("a1"));
208     test(S("abcde"), 1, 4, "12345", 2, S("a12"));
209     test(S("abcde"), 1, 4, "12345", 4, S("a1234"));
210     test(S("abcde"), 1, 4, "12345", 5, S("a12345"));
211     test(S("abcde"), 1, 4, "1234567890", 0, S("a"));
212     test(S("abcde"), 1, 4, "1234567890", 1, S("a1"));
213     test(S("abcde"), 1, 4, "1234567890", 5, S("a12345"));
214     test(S("abcde"), 1, 4, "1234567890", 9, S("a123456789"));
215     test(S("abcde"), 1, 4, "1234567890", 10, S("a1234567890"));
216     test(S("abcde"), 1, 4, "12345678901234567890", 0, S("a"));
217     test(S("abcde"), 1, 4, "12345678901234567890", 1, S("a1"));
218     test(S("abcde"), 1, 4, "12345678901234567890", 10, S("a1234567890"));
219     test(S("abcde"), 1, 4, "12345678901234567890", 19, S("a1234567890123456789"));
220     test(S("abcde"), 1, 4, "12345678901234567890", 20, S("a12345678901234567890"));
221     test(S("abcde"), 2, 0, "", 0, S("abcde"));
222     test(S("abcde"), 2, 0, "12345", 0, S("abcde"));
223     test(S("abcde"), 2, 0, "12345", 1, S("ab1cde"));
224     test(S("abcde"), 2, 0, "12345", 2, S("ab12cde"));
225     test(S("abcde"), 2, 0, "12345", 4, S("ab1234cde"));
226     test(S("abcde"), 2, 0, "12345", 5, S("ab12345cde"));
227     test(S("abcde"), 2, 0, "1234567890", 0, S("abcde"));
228     test(S("abcde"), 2, 0, "1234567890", 1, S("ab1cde"));
229     test(S("abcde"), 2, 0, "1234567890", 5, S("ab12345cde"));
230     test(S("abcde"), 2, 0, "1234567890", 9, S("ab123456789cde"));
231     test(S("abcde"), 2, 0, "1234567890", 10, S("ab1234567890cde"));
232     test(S("abcde"), 2, 0, "12345678901234567890", 0, S("abcde"));
233     test(S("abcde"), 2, 0, "12345678901234567890", 1, S("ab1cde"));
234     test(S("abcde"), 2, 0, "12345678901234567890", 10, S("ab1234567890cde"));
235     test(S("abcde"), 2, 0, "12345678901234567890", 19, S("ab1234567890123456789cde"));
236     test(S("abcde"), 2, 0, "12345678901234567890", 20, S("ab12345678901234567890cde"));
237     test(S("abcde"), 2, 1, "", 0, S("abde"));
238     test(S("abcde"), 2, 1, "12345", 0, S("abde"));
239     test(S("abcde"), 2, 1, "12345", 1, S("ab1de"));
240     test(S("abcde"), 2, 1, "12345", 2, S("ab12de"));
241     test(S("abcde"), 2, 1, "12345", 4, S("ab1234de"));
242     test(S("abcde"), 2, 1, "12345", 5, S("ab12345de"));
243     test(S("abcde"), 2, 1, "1234567890", 0, S("abde"));
244     test(S("abcde"), 2, 1, "1234567890", 1, S("ab1de"));
245 }
246 
247 template <class S>
test2()248 void test2()
249 {
250     test(S("abcde"), 2, 1, "1234567890", 5, S("ab12345de"));
251     test(S("abcde"), 2, 1, "1234567890", 9, S("ab123456789de"));
252     test(S("abcde"), 2, 1, "1234567890", 10, S("ab1234567890de"));
253     test(S("abcde"), 2, 1, "12345678901234567890", 0, S("abde"));
254     test(S("abcde"), 2, 1, "12345678901234567890", 1, S("ab1de"));
255     test(S("abcde"), 2, 1, "12345678901234567890", 10, S("ab1234567890de"));
256     test(S("abcde"), 2, 1, "12345678901234567890", 19, S("ab1234567890123456789de"));
257     test(S("abcde"), 2, 1, "12345678901234567890", 20, S("ab12345678901234567890de"));
258     test(S("abcde"), 2, 2, "", 0, S("abe"));
259     test(S("abcde"), 2, 2, "12345", 0, S("abe"));
260     test(S("abcde"), 2, 2, "12345", 1, S("ab1e"));
261     test(S("abcde"), 2, 2, "12345", 2, S("ab12e"));
262     test(S("abcde"), 2, 2, "12345", 4, S("ab1234e"));
263     test(S("abcde"), 2, 2, "12345", 5, S("ab12345e"));
264     test(S("abcde"), 2, 2, "1234567890", 0, S("abe"));
265     test(S("abcde"), 2, 2, "1234567890", 1, S("ab1e"));
266     test(S("abcde"), 2, 2, "1234567890", 5, S("ab12345e"));
267     test(S("abcde"), 2, 2, "1234567890", 9, S("ab123456789e"));
268     test(S("abcde"), 2, 2, "1234567890", 10, S("ab1234567890e"));
269     test(S("abcde"), 2, 2, "12345678901234567890", 0, S("abe"));
270     test(S("abcde"), 2, 2, "12345678901234567890", 1, S("ab1e"));
271     test(S("abcde"), 2, 2, "12345678901234567890", 10, S("ab1234567890e"));
272     test(S("abcde"), 2, 2, "12345678901234567890", 19, S("ab1234567890123456789e"));
273     test(S("abcde"), 2, 2, "12345678901234567890", 20, S("ab12345678901234567890e"));
274     test(S("abcde"), 2, 3, "", 0, S("ab"));
275     test(S("abcde"), 2, 3, "12345", 0, S("ab"));
276     test(S("abcde"), 2, 3, "12345", 1, S("ab1"));
277     test(S("abcde"), 2, 3, "12345", 2, S("ab12"));
278     test(S("abcde"), 2, 3, "12345", 4, S("ab1234"));
279     test(S("abcde"), 2, 3, "12345", 5, S("ab12345"));
280     test(S("abcde"), 2, 3, "1234567890", 0, S("ab"));
281     test(S("abcde"), 2, 3, "1234567890", 1, S("ab1"));
282     test(S("abcde"), 2, 3, "1234567890", 5, S("ab12345"));
283     test(S("abcde"), 2, 3, "1234567890", 9, S("ab123456789"));
284     test(S("abcde"), 2, 3, "1234567890", 10, S("ab1234567890"));
285     test(S("abcde"), 2, 3, "12345678901234567890", 0, S("ab"));
286     test(S("abcde"), 2, 3, "12345678901234567890", 1, S("ab1"));
287     test(S("abcde"), 2, 3, "12345678901234567890", 10, S("ab1234567890"));
288     test(S("abcde"), 2, 3, "12345678901234567890", 19, S("ab1234567890123456789"));
289     test(S("abcde"), 2, 3, "12345678901234567890", 20, S("ab12345678901234567890"));
290     test(S("abcde"), 4, 0, "", 0, S("abcde"));
291     test(S("abcde"), 4, 0, "12345", 0, S("abcde"));
292     test(S("abcde"), 4, 0, "12345", 1, S("abcd1e"));
293     test(S("abcde"), 4, 0, "12345", 2, S("abcd12e"));
294     test(S("abcde"), 4, 0, "12345", 4, S("abcd1234e"));
295     test(S("abcde"), 4, 0, "12345", 5, S("abcd12345e"));
296     test(S("abcde"), 4, 0, "1234567890", 0, S("abcde"));
297     test(S("abcde"), 4, 0, "1234567890", 1, S("abcd1e"));
298     test(S("abcde"), 4, 0, "1234567890", 5, S("abcd12345e"));
299     test(S("abcde"), 4, 0, "1234567890", 9, S("abcd123456789e"));
300     test(S("abcde"), 4, 0, "1234567890", 10, S("abcd1234567890e"));
301     test(S("abcde"), 4, 0, "12345678901234567890", 0, S("abcde"));
302     test(S("abcde"), 4, 0, "12345678901234567890", 1, S("abcd1e"));
303     test(S("abcde"), 4, 0, "12345678901234567890", 10, S("abcd1234567890e"));
304     test(S("abcde"), 4, 0, "12345678901234567890", 19, S("abcd1234567890123456789e"));
305     test(S("abcde"), 4, 0, "12345678901234567890", 20, S("abcd12345678901234567890e"));
306     test(S("abcde"), 4, 1, "", 0, S("abcd"));
307     test(S("abcde"), 4, 1, "12345", 0, S("abcd"));
308     test(S("abcde"), 4, 1, "12345", 1, S("abcd1"));
309     test(S("abcde"), 4, 1, "12345", 2, S("abcd12"));
310     test(S("abcde"), 4, 1, "12345", 4, S("abcd1234"));
311     test(S("abcde"), 4, 1, "12345", 5, S("abcd12345"));
312     test(S("abcde"), 4, 1, "1234567890", 0, S("abcd"));
313     test(S("abcde"), 4, 1, "1234567890", 1, S("abcd1"));
314     test(S("abcde"), 4, 1, "1234567890", 5, S("abcd12345"));
315     test(S("abcde"), 4, 1, "1234567890", 9, S("abcd123456789"));
316     test(S("abcde"), 4, 1, "1234567890", 10, S("abcd1234567890"));
317     test(S("abcde"), 4, 1, "12345678901234567890", 0, S("abcd"));
318     test(S("abcde"), 4, 1, "12345678901234567890", 1, S("abcd1"));
319     test(S("abcde"), 4, 1, "12345678901234567890", 10, S("abcd1234567890"));
320     test(S("abcde"), 4, 1, "12345678901234567890", 19, S("abcd1234567890123456789"));
321     test(S("abcde"), 4, 1, "12345678901234567890", 20, S("abcd12345678901234567890"));
322     test(S("abcde"), 5, 0, "", 0, S("abcde"));
323     test(S("abcde"), 5, 0, "12345", 0, S("abcde"));
324     test(S("abcde"), 5, 0, "12345", 1, S("abcde1"));
325     test(S("abcde"), 5, 0, "12345", 2, S("abcde12"));
326     test(S("abcde"), 5, 0, "12345", 4, S("abcde1234"));
327     test(S("abcde"), 5, 0, "12345", 5, S("abcde12345"));
328     test(S("abcde"), 5, 0, "1234567890", 0, S("abcde"));
329     test(S("abcde"), 5, 0, "1234567890", 1, S("abcde1"));
330     test(S("abcde"), 5, 0, "1234567890", 5, S("abcde12345"));
331     test(S("abcde"), 5, 0, "1234567890", 9, S("abcde123456789"));
332     test(S("abcde"), 5, 0, "1234567890", 10, S("abcde1234567890"));
333     test(S("abcde"), 5, 0, "12345678901234567890", 0, S("abcde"));
334     test(S("abcde"), 5, 0, "12345678901234567890", 1, S("abcde1"));
335     test(S("abcde"), 5, 0, "12345678901234567890", 10, S("abcde1234567890"));
336     test(S("abcde"), 5, 0, "12345678901234567890", 19, S("abcde1234567890123456789"));
337     test(S("abcde"), 5, 0, "12345678901234567890", 20, S("abcde12345678901234567890"));
338     test(S("abcdefghij"), 0, 0, "", 0, S("abcdefghij"));
339     test(S("abcdefghij"), 0, 0, "12345", 0, S("abcdefghij"));
340     test(S("abcdefghij"), 0, 0, "12345", 1, S("1abcdefghij"));
341     test(S("abcdefghij"), 0, 0, "12345", 2, S("12abcdefghij"));
342     test(S("abcdefghij"), 0, 0, "12345", 4, S("1234abcdefghij"));
343     test(S("abcdefghij"), 0, 0, "12345", 5, S("12345abcdefghij"));
344     test(S("abcdefghij"), 0, 0, "1234567890", 0, S("abcdefghij"));
345     test(S("abcdefghij"), 0, 0, "1234567890", 1, S("1abcdefghij"));
346     test(S("abcdefghij"), 0, 0, "1234567890", 5, S("12345abcdefghij"));
347     test(S("abcdefghij"), 0, 0, "1234567890", 9, S("123456789abcdefghij"));
348     test(S("abcdefghij"), 0, 0, "1234567890", 10, S("1234567890abcdefghij"));
349     test(S("abcdefghij"), 0, 0, "12345678901234567890", 0, S("abcdefghij"));
350 }
351 
352 template <class S>
test3()353 void test3()
354 {
355     test(S("abcdefghij"), 0, 0, "12345678901234567890", 1, S("1abcdefghij"));
356     test(S("abcdefghij"), 0, 0, "12345678901234567890", 10, S("1234567890abcdefghij"));
357     test(S("abcdefghij"), 0, 0, "12345678901234567890", 19, S("1234567890123456789abcdefghij"));
358     test(S("abcdefghij"), 0, 0, "12345678901234567890", 20, S("12345678901234567890abcdefghij"));
359     test(S("abcdefghij"), 0, 1, "", 0, S("bcdefghij"));
360     test(S("abcdefghij"), 0, 1, "12345", 0, S("bcdefghij"));
361     test(S("abcdefghij"), 0, 1, "12345", 1, S("1bcdefghij"));
362     test(S("abcdefghij"), 0, 1, "12345", 2, S("12bcdefghij"));
363     test(S("abcdefghij"), 0, 1, "12345", 4, S("1234bcdefghij"));
364     test(S("abcdefghij"), 0, 1, "12345", 5, S("12345bcdefghij"));
365     test(S("abcdefghij"), 0, 1, "1234567890", 0, S("bcdefghij"));
366     test(S("abcdefghij"), 0, 1, "1234567890", 1, S("1bcdefghij"));
367     test(S("abcdefghij"), 0, 1, "1234567890", 5, S("12345bcdefghij"));
368     test(S("abcdefghij"), 0, 1, "1234567890", 9, S("123456789bcdefghij"));
369     test(S("abcdefghij"), 0, 1, "1234567890", 10, S("1234567890bcdefghij"));
370     test(S("abcdefghij"), 0, 1, "12345678901234567890", 0, S("bcdefghij"));
371     test(S("abcdefghij"), 0, 1, "12345678901234567890", 1, S("1bcdefghij"));
372     test(S("abcdefghij"), 0, 1, "12345678901234567890", 10, S("1234567890bcdefghij"));
373     test(S("abcdefghij"), 0, 1, "12345678901234567890", 19, S("1234567890123456789bcdefghij"));
374     test(S("abcdefghij"), 0, 1, "12345678901234567890", 20, S("12345678901234567890bcdefghij"));
375     test(S("abcdefghij"), 0, 5, "", 0, S("fghij"));
376     test(S("abcdefghij"), 0, 5, "12345", 0, S("fghij"));
377     test(S("abcdefghij"), 0, 5, "12345", 1, S("1fghij"));
378     test(S("abcdefghij"), 0, 5, "12345", 2, S("12fghij"));
379     test(S("abcdefghij"), 0, 5, "12345", 4, S("1234fghij"));
380     test(S("abcdefghij"), 0, 5, "12345", 5, S("12345fghij"));
381     test(S("abcdefghij"), 0, 5, "1234567890", 0, S("fghij"));
382     test(S("abcdefghij"), 0, 5, "1234567890", 1, S("1fghij"));
383     test(S("abcdefghij"), 0, 5, "1234567890", 5, S("12345fghij"));
384     test(S("abcdefghij"), 0, 5, "1234567890", 9, S("123456789fghij"));
385     test(S("abcdefghij"), 0, 5, "1234567890", 10, S("1234567890fghij"));
386     test(S("abcdefghij"), 0, 5, "12345678901234567890", 0, S("fghij"));
387     test(S("abcdefghij"), 0, 5, "12345678901234567890", 1, S("1fghij"));
388     test(S("abcdefghij"), 0, 5, "12345678901234567890", 10, S("1234567890fghij"));
389     test(S("abcdefghij"), 0, 5, "12345678901234567890", 19, S("1234567890123456789fghij"));
390     test(S("abcdefghij"), 0, 5, "12345678901234567890", 20, S("12345678901234567890fghij"));
391     test(S("abcdefghij"), 0, 9, "", 0, S("j"));
392     test(S("abcdefghij"), 0, 9, "12345", 0, S("j"));
393     test(S("abcdefghij"), 0, 9, "12345", 1, S("1j"));
394     test(S("abcdefghij"), 0, 9, "12345", 2, S("12j"));
395     test(S("abcdefghij"), 0, 9, "12345", 4, S("1234j"));
396     test(S("abcdefghij"), 0, 9, "12345", 5, S("12345j"));
397     test(S("abcdefghij"), 0, 9, "1234567890", 0, S("j"));
398     test(S("abcdefghij"), 0, 9, "1234567890", 1, S("1j"));
399     test(S("abcdefghij"), 0, 9, "1234567890", 5, S("12345j"));
400     test(S("abcdefghij"), 0, 9, "1234567890", 9, S("123456789j"));
401     test(S("abcdefghij"), 0, 9, "1234567890", 10, S("1234567890j"));
402     test(S("abcdefghij"), 0, 9, "12345678901234567890", 0, S("j"));
403     test(S("abcdefghij"), 0, 9, "12345678901234567890", 1, S("1j"));
404     test(S("abcdefghij"), 0, 9, "12345678901234567890", 10, S("1234567890j"));
405     test(S("abcdefghij"), 0, 9, "12345678901234567890", 19, S("1234567890123456789j"));
406     test(S("abcdefghij"), 0, 9, "12345678901234567890", 20, S("12345678901234567890j"));
407     test(S("abcdefghij"), 0, 10, "", 0, S(""));
408     test(S("abcdefghij"), 0, 10, "12345", 0, S(""));
409     test(S("abcdefghij"), 0, 10, "12345", 1, S("1"));
410     test(S("abcdefghij"), 0, 10, "12345", 2, S("12"));
411     test(S("abcdefghij"), 0, 10, "12345", 4, S("1234"));
412     test(S("abcdefghij"), 0, 10, "12345", 5, S("12345"));
413     test(S("abcdefghij"), 0, 10, "1234567890", 0, S(""));
414     test(S("abcdefghij"), 0, 10, "1234567890", 1, S("1"));
415     test(S("abcdefghij"), 0, 10, "1234567890", 5, S("12345"));
416     test(S("abcdefghij"), 0, 10, "1234567890", 9, S("123456789"));
417     test(S("abcdefghij"), 0, 10, "1234567890", 10, S("1234567890"));
418     test(S("abcdefghij"), 0, 10, "12345678901234567890", 0, S(""));
419     test(S("abcdefghij"), 0, 10, "12345678901234567890", 1, S("1"));
420     test(S("abcdefghij"), 0, 10, "12345678901234567890", 10, S("1234567890"));
421     test(S("abcdefghij"), 0, 10, "12345678901234567890", 19, S("1234567890123456789"));
422     test(S("abcdefghij"), 0, 10, "12345678901234567890", 20, S("12345678901234567890"));
423     test(S("abcdefghij"), 1, 0, "", 0, S("abcdefghij"));
424     test(S("abcdefghij"), 1, 0, "12345", 0, S("abcdefghij"));
425     test(S("abcdefghij"), 1, 0, "12345", 1, S("a1bcdefghij"));
426     test(S("abcdefghij"), 1, 0, "12345", 2, S("a12bcdefghij"));
427     test(S("abcdefghij"), 1, 0, "12345", 4, S("a1234bcdefghij"));
428     test(S("abcdefghij"), 1, 0, "12345", 5, S("a12345bcdefghij"));
429     test(S("abcdefghij"), 1, 0, "1234567890", 0, S("abcdefghij"));
430     test(S("abcdefghij"), 1, 0, "1234567890", 1, S("a1bcdefghij"));
431     test(S("abcdefghij"), 1, 0, "1234567890", 5, S("a12345bcdefghij"));
432     test(S("abcdefghij"), 1, 0, "1234567890", 9, S("a123456789bcdefghij"));
433     test(S("abcdefghij"), 1, 0, "1234567890", 10, S("a1234567890bcdefghij"));
434     test(S("abcdefghij"), 1, 0, "12345678901234567890", 0, S("abcdefghij"));
435     test(S("abcdefghij"), 1, 0, "12345678901234567890", 1, S("a1bcdefghij"));
436     test(S("abcdefghij"), 1, 0, "12345678901234567890", 10, S("a1234567890bcdefghij"));
437     test(S("abcdefghij"), 1, 0, "12345678901234567890", 19, S("a1234567890123456789bcdefghij"));
438     test(S("abcdefghij"), 1, 0, "12345678901234567890", 20, S("a12345678901234567890bcdefghij"));
439     test(S("abcdefghij"), 1, 1, "", 0, S("acdefghij"));
440     test(S("abcdefghij"), 1, 1, "12345", 0, S("acdefghij"));
441     test(S("abcdefghij"), 1, 1, "12345", 1, S("a1cdefghij"));
442     test(S("abcdefghij"), 1, 1, "12345", 2, S("a12cdefghij"));
443     test(S("abcdefghij"), 1, 1, "12345", 4, S("a1234cdefghij"));
444     test(S("abcdefghij"), 1, 1, "12345", 5, S("a12345cdefghij"));
445     test(S("abcdefghij"), 1, 1, "1234567890", 0, S("acdefghij"));
446     test(S("abcdefghij"), 1, 1, "1234567890", 1, S("a1cdefghij"));
447     test(S("abcdefghij"), 1, 1, "1234567890", 5, S("a12345cdefghij"));
448     test(S("abcdefghij"), 1, 1, "1234567890", 9, S("a123456789cdefghij"));
449     test(S("abcdefghij"), 1, 1, "1234567890", 10, S("a1234567890cdefghij"));
450     test(S("abcdefghij"), 1, 1, "12345678901234567890", 0, S("acdefghij"));
451     test(S("abcdefghij"), 1, 1, "12345678901234567890", 1, S("a1cdefghij"));
452     test(S("abcdefghij"), 1, 1, "12345678901234567890", 10, S("a1234567890cdefghij"));
453     test(S("abcdefghij"), 1, 1, "12345678901234567890", 19, S("a1234567890123456789cdefghij"));
454     test(S("abcdefghij"), 1, 1, "12345678901234567890", 20, S("a12345678901234567890cdefghij"));
455 }
456 
457 template <class S>
test4()458 void test4()
459 {
460     test(S("abcdefghij"), 1, 4, "", 0, S("afghij"));
461     test(S("abcdefghij"), 1, 4, "12345", 0, S("afghij"));
462     test(S("abcdefghij"), 1, 4, "12345", 1, S("a1fghij"));
463     test(S("abcdefghij"), 1, 4, "12345", 2, S("a12fghij"));
464     test(S("abcdefghij"), 1, 4, "12345", 4, S("a1234fghij"));
465     test(S("abcdefghij"), 1, 4, "12345", 5, S("a12345fghij"));
466     test(S("abcdefghij"), 1, 4, "1234567890", 0, S("afghij"));
467     test(S("abcdefghij"), 1, 4, "1234567890", 1, S("a1fghij"));
468     test(S("abcdefghij"), 1, 4, "1234567890", 5, S("a12345fghij"));
469     test(S("abcdefghij"), 1, 4, "1234567890", 9, S("a123456789fghij"));
470     test(S("abcdefghij"), 1, 4, "1234567890", 10, S("a1234567890fghij"));
471     test(S("abcdefghij"), 1, 4, "12345678901234567890", 0, S("afghij"));
472     test(S("abcdefghij"), 1, 4, "12345678901234567890", 1, S("a1fghij"));
473     test(S("abcdefghij"), 1, 4, "12345678901234567890", 10, S("a1234567890fghij"));
474     test(S("abcdefghij"), 1, 4, "12345678901234567890", 19, S("a1234567890123456789fghij"));
475     test(S("abcdefghij"), 1, 4, "12345678901234567890", 20, S("a12345678901234567890fghij"));
476     test(S("abcdefghij"), 1, 8, "", 0, S("aj"));
477     test(S("abcdefghij"), 1, 8, "12345", 0, S("aj"));
478     test(S("abcdefghij"), 1, 8, "12345", 1, S("a1j"));
479     test(S("abcdefghij"), 1, 8, "12345", 2, S("a12j"));
480     test(S("abcdefghij"), 1, 8, "12345", 4, S("a1234j"));
481     test(S("abcdefghij"), 1, 8, "12345", 5, S("a12345j"));
482     test(S("abcdefghij"), 1, 8, "1234567890", 0, S("aj"));
483     test(S("abcdefghij"), 1, 8, "1234567890", 1, S("a1j"));
484     test(S("abcdefghij"), 1, 8, "1234567890", 5, S("a12345j"));
485     test(S("abcdefghij"), 1, 8, "1234567890", 9, S("a123456789j"));
486     test(S("abcdefghij"), 1, 8, "1234567890", 10, S("a1234567890j"));
487     test(S("abcdefghij"), 1, 8, "12345678901234567890", 0, S("aj"));
488     test(S("abcdefghij"), 1, 8, "12345678901234567890", 1, S("a1j"));
489     test(S("abcdefghij"), 1, 8, "12345678901234567890", 10, S("a1234567890j"));
490     test(S("abcdefghij"), 1, 8, "12345678901234567890", 19, S("a1234567890123456789j"));
491     test(S("abcdefghij"), 1, 8, "12345678901234567890", 20, S("a12345678901234567890j"));
492     test(S("abcdefghij"), 1, 9, "", 0, S("a"));
493     test(S("abcdefghij"), 1, 9, "12345", 0, S("a"));
494     test(S("abcdefghij"), 1, 9, "12345", 1, S("a1"));
495     test(S("abcdefghij"), 1, 9, "12345", 2, S("a12"));
496     test(S("abcdefghij"), 1, 9, "12345", 4, S("a1234"));
497     test(S("abcdefghij"), 1, 9, "12345", 5, S("a12345"));
498     test(S("abcdefghij"), 1, 9, "1234567890", 0, S("a"));
499     test(S("abcdefghij"), 1, 9, "1234567890", 1, S("a1"));
500     test(S("abcdefghij"), 1, 9, "1234567890", 5, S("a12345"));
501     test(S("abcdefghij"), 1, 9, "1234567890", 9, S("a123456789"));
502     test(S("abcdefghij"), 1, 9, "1234567890", 10, S("a1234567890"));
503     test(S("abcdefghij"), 1, 9, "12345678901234567890", 0, S("a"));
504     test(S("abcdefghij"), 1, 9, "12345678901234567890", 1, S("a1"));
505     test(S("abcdefghij"), 1, 9, "12345678901234567890", 10, S("a1234567890"));
506     test(S("abcdefghij"), 1, 9, "12345678901234567890", 19, S("a1234567890123456789"));
507     test(S("abcdefghij"), 1, 9, "12345678901234567890", 20, S("a12345678901234567890"));
508     test(S("abcdefghij"), 5, 0, "", 0, S("abcdefghij"));
509     test(S("abcdefghij"), 5, 0, "12345", 0, S("abcdefghij"));
510     test(S("abcdefghij"), 5, 0, "12345", 1, S("abcde1fghij"));
511     test(S("abcdefghij"), 5, 0, "12345", 2, S("abcde12fghij"));
512     test(S("abcdefghij"), 5, 0, "12345", 4, S("abcde1234fghij"));
513     test(S("abcdefghij"), 5, 0, "12345", 5, S("abcde12345fghij"));
514     test(S("abcdefghij"), 5, 0, "1234567890", 0, S("abcdefghij"));
515     test(S("abcdefghij"), 5, 0, "1234567890", 1, S("abcde1fghij"));
516     test(S("abcdefghij"), 5, 0, "1234567890", 5, S("abcde12345fghij"));
517     test(S("abcdefghij"), 5, 0, "1234567890", 9, S("abcde123456789fghij"));
518     test(S("abcdefghij"), 5, 0, "1234567890", 10, S("abcde1234567890fghij"));
519     test(S("abcdefghij"), 5, 0, "12345678901234567890", 0, S("abcdefghij"));
520     test(S("abcdefghij"), 5, 0, "12345678901234567890", 1, S("abcde1fghij"));
521     test(S("abcdefghij"), 5, 0, "12345678901234567890", 10, S("abcde1234567890fghij"));
522     test(S("abcdefghij"), 5, 0, "12345678901234567890", 19, S("abcde1234567890123456789fghij"));
523     test(S("abcdefghij"), 5, 0, "12345678901234567890", 20, S("abcde12345678901234567890fghij"));
524     test(S("abcdefghij"), 5, 1, "", 0, S("abcdeghij"));
525     test(S("abcdefghij"), 5, 1, "12345", 0, S("abcdeghij"));
526     test(S("abcdefghij"), 5, 1, "12345", 1, S("abcde1ghij"));
527     test(S("abcdefghij"), 5, 1, "12345", 2, S("abcde12ghij"));
528     test(S("abcdefghij"), 5, 1, "12345", 4, S("abcde1234ghij"));
529     test(S("abcdefghij"), 5, 1, "12345", 5, S("abcde12345ghij"));
530     test(S("abcdefghij"), 5, 1, "1234567890", 0, S("abcdeghij"));
531     test(S("abcdefghij"), 5, 1, "1234567890", 1, S("abcde1ghij"));
532     test(S("abcdefghij"), 5, 1, "1234567890", 5, S("abcde12345ghij"));
533     test(S("abcdefghij"), 5, 1, "1234567890", 9, S("abcde123456789ghij"));
534     test(S("abcdefghij"), 5, 1, "1234567890", 10, S("abcde1234567890ghij"));
535     test(S("abcdefghij"), 5, 1, "12345678901234567890", 0, S("abcdeghij"));
536     test(S("abcdefghij"), 5, 1, "12345678901234567890", 1, S("abcde1ghij"));
537     test(S("abcdefghij"), 5, 1, "12345678901234567890", 10, S("abcde1234567890ghij"));
538     test(S("abcdefghij"), 5, 1, "12345678901234567890", 19, S("abcde1234567890123456789ghij"));
539     test(S("abcdefghij"), 5, 1, "12345678901234567890", 20, S("abcde12345678901234567890ghij"));
540     test(S("abcdefghij"), 5, 2, "", 0, S("abcdehij"));
541     test(S("abcdefghij"), 5, 2, "12345", 0, S("abcdehij"));
542     test(S("abcdefghij"), 5, 2, "12345", 1, S("abcde1hij"));
543     test(S("abcdefghij"), 5, 2, "12345", 2, S("abcde12hij"));
544     test(S("abcdefghij"), 5, 2, "12345", 4, S("abcde1234hij"));
545     test(S("abcdefghij"), 5, 2, "12345", 5, S("abcde12345hij"));
546     test(S("abcdefghij"), 5, 2, "1234567890", 0, S("abcdehij"));
547     test(S("abcdefghij"), 5, 2, "1234567890", 1, S("abcde1hij"));
548     test(S("abcdefghij"), 5, 2, "1234567890", 5, S("abcde12345hij"));
549     test(S("abcdefghij"), 5, 2, "1234567890", 9, S("abcde123456789hij"));
550     test(S("abcdefghij"), 5, 2, "1234567890", 10, S("abcde1234567890hij"));
551     test(S("abcdefghij"), 5, 2, "12345678901234567890", 0, S("abcdehij"));
552     test(S("abcdefghij"), 5, 2, "12345678901234567890", 1, S("abcde1hij"));
553     test(S("abcdefghij"), 5, 2, "12345678901234567890", 10, S("abcde1234567890hij"));
554     test(S("abcdefghij"), 5, 2, "12345678901234567890", 19, S("abcde1234567890123456789hij"));
555     test(S("abcdefghij"), 5, 2, "12345678901234567890", 20, S("abcde12345678901234567890hij"));
556     test(S("abcdefghij"), 5, 4, "", 0, S("abcdej"));
557     test(S("abcdefghij"), 5, 4, "12345", 0, S("abcdej"));
558     test(S("abcdefghij"), 5, 4, "12345", 1, S("abcde1j"));
559     test(S("abcdefghij"), 5, 4, "12345", 2, S("abcde12j"));
560 }
561 
562 template <class S>
test5()563 void test5()
564 {
565     test(S("abcdefghij"), 5, 4, "12345", 4, S("abcde1234j"));
566     test(S("abcdefghij"), 5, 4, "12345", 5, S("abcde12345j"));
567     test(S("abcdefghij"), 5, 4, "1234567890", 0, S("abcdej"));
568     test(S("abcdefghij"), 5, 4, "1234567890", 1, S("abcde1j"));
569     test(S("abcdefghij"), 5, 4, "1234567890", 5, S("abcde12345j"));
570     test(S("abcdefghij"), 5, 4, "1234567890", 9, S("abcde123456789j"));
571     test(S("abcdefghij"), 5, 4, "1234567890", 10, S("abcde1234567890j"));
572     test(S("abcdefghij"), 5, 4, "12345678901234567890", 0, S("abcdej"));
573     test(S("abcdefghij"), 5, 4, "12345678901234567890", 1, S("abcde1j"));
574     test(S("abcdefghij"), 5, 4, "12345678901234567890", 10, S("abcde1234567890j"));
575     test(S("abcdefghij"), 5, 4, "12345678901234567890", 19, S("abcde1234567890123456789j"));
576     test(S("abcdefghij"), 5, 4, "12345678901234567890", 20, S("abcde12345678901234567890j"));
577     test(S("abcdefghij"), 5, 5, "", 0, S("abcde"));
578     test(S("abcdefghij"), 5, 5, "12345", 0, S("abcde"));
579     test(S("abcdefghij"), 5, 5, "12345", 1, S("abcde1"));
580     test(S("abcdefghij"), 5, 5, "12345", 2, S("abcde12"));
581     test(S("abcdefghij"), 5, 5, "12345", 4, S("abcde1234"));
582     test(S("abcdefghij"), 5, 5, "12345", 5, S("abcde12345"));
583     test(S("abcdefghij"), 5, 5, "1234567890", 0, S("abcde"));
584     test(S("abcdefghij"), 5, 5, "1234567890", 1, S("abcde1"));
585     test(S("abcdefghij"), 5, 5, "1234567890", 5, S("abcde12345"));
586     test(S("abcdefghij"), 5, 5, "1234567890", 9, S("abcde123456789"));
587     test(S("abcdefghij"), 5, 5, "1234567890", 10, S("abcde1234567890"));
588     test(S("abcdefghij"), 5, 5, "12345678901234567890", 0, S("abcde"));
589     test(S("abcdefghij"), 5, 5, "12345678901234567890", 1, S("abcde1"));
590     test(S("abcdefghij"), 5, 5, "12345678901234567890", 10, S("abcde1234567890"));
591     test(S("abcdefghij"), 5, 5, "12345678901234567890", 19, S("abcde1234567890123456789"));
592     test(S("abcdefghij"), 5, 5, "12345678901234567890", 20, S("abcde12345678901234567890"));
593     test(S("abcdefghij"), 9, 0, "", 0, S("abcdefghij"));
594     test(S("abcdefghij"), 9, 0, "12345", 0, S("abcdefghij"));
595     test(S("abcdefghij"), 9, 0, "12345", 1, S("abcdefghi1j"));
596     test(S("abcdefghij"), 9, 0, "12345", 2, S("abcdefghi12j"));
597     test(S("abcdefghij"), 9, 0, "12345", 4, S("abcdefghi1234j"));
598     test(S("abcdefghij"), 9, 0, "12345", 5, S("abcdefghi12345j"));
599     test(S("abcdefghij"), 9, 0, "1234567890", 0, S("abcdefghij"));
600     test(S("abcdefghij"), 9, 0, "1234567890", 1, S("abcdefghi1j"));
601     test(S("abcdefghij"), 9, 0, "1234567890", 5, S("abcdefghi12345j"));
602     test(S("abcdefghij"), 9, 0, "1234567890", 9, S("abcdefghi123456789j"));
603     test(S("abcdefghij"), 9, 0, "1234567890", 10, S("abcdefghi1234567890j"));
604     test(S("abcdefghij"), 9, 0, "12345678901234567890", 0, S("abcdefghij"));
605     test(S("abcdefghij"), 9, 0, "12345678901234567890", 1, S("abcdefghi1j"));
606     test(S("abcdefghij"), 9, 0, "12345678901234567890", 10, S("abcdefghi1234567890j"));
607     test(S("abcdefghij"), 9, 0, "12345678901234567890", 19, S("abcdefghi1234567890123456789j"));
608     test(S("abcdefghij"), 9, 0, "12345678901234567890", 20, S("abcdefghi12345678901234567890j"));
609     test(S("abcdefghij"), 9, 1, "", 0, S("abcdefghi"));
610     test(S("abcdefghij"), 9, 1, "12345", 0, S("abcdefghi"));
611     test(S("abcdefghij"), 9, 1, "12345", 1, S("abcdefghi1"));
612     test(S("abcdefghij"), 9, 1, "12345", 2, S("abcdefghi12"));
613     test(S("abcdefghij"), 9, 1, "12345", 4, S("abcdefghi1234"));
614     test(S("abcdefghij"), 9, 1, "12345", 5, S("abcdefghi12345"));
615     test(S("abcdefghij"), 9, 1, "1234567890", 0, S("abcdefghi"));
616     test(S("abcdefghij"), 9, 1, "1234567890", 1, S("abcdefghi1"));
617     test(S("abcdefghij"), 9, 1, "1234567890", 5, S("abcdefghi12345"));
618     test(S("abcdefghij"), 9, 1, "1234567890", 9, S("abcdefghi123456789"));
619     test(S("abcdefghij"), 9, 1, "1234567890", 10, S("abcdefghi1234567890"));
620     test(S("abcdefghij"), 9, 1, "12345678901234567890", 0, S("abcdefghi"));
621     test(S("abcdefghij"), 9, 1, "12345678901234567890", 1, S("abcdefghi1"));
622     test(S("abcdefghij"), 9, 1, "12345678901234567890", 10, S("abcdefghi1234567890"));
623     test(S("abcdefghij"), 9, 1, "12345678901234567890", 19, S("abcdefghi1234567890123456789"));
624     test(S("abcdefghij"), 9, 1, "12345678901234567890", 20, S("abcdefghi12345678901234567890"));
625     test(S("abcdefghij"), 10, 0, "", 0, S("abcdefghij"));
626     test(S("abcdefghij"), 10, 0, "12345", 0, S("abcdefghij"));
627     test(S("abcdefghij"), 10, 0, "12345", 1, S("abcdefghij1"));
628     test(S("abcdefghij"), 10, 0, "12345", 2, S("abcdefghij12"));
629     test(S("abcdefghij"), 10, 0, "12345", 4, S("abcdefghij1234"));
630     test(S("abcdefghij"), 10, 0, "12345", 5, S("abcdefghij12345"));
631     test(S("abcdefghij"), 10, 0, "1234567890", 0, S("abcdefghij"));
632     test(S("abcdefghij"), 10, 0, "1234567890", 1, S("abcdefghij1"));
633     test(S("abcdefghij"), 10, 0, "1234567890", 5, S("abcdefghij12345"));
634     test(S("abcdefghij"), 10, 0, "1234567890", 9, S("abcdefghij123456789"));
635     test(S("abcdefghij"), 10, 0, "1234567890", 10, S("abcdefghij1234567890"));
636     test(S("abcdefghij"), 10, 0, "12345678901234567890", 0, S("abcdefghij"));
637     test(S("abcdefghij"), 10, 0, "12345678901234567890", 1, S("abcdefghij1"));
638     test(S("abcdefghij"), 10, 0, "12345678901234567890", 10, S("abcdefghij1234567890"));
639     test(S("abcdefghij"), 10, 0, "12345678901234567890", 19, S("abcdefghij1234567890123456789"));
640     test(S("abcdefghij"), 10, 0, "12345678901234567890", 20, S("abcdefghij12345678901234567890"));
641     test(S("abcdefghijklmnopqrst"), 0, 0, "", 0, S("abcdefghijklmnopqrst"));
642     test(S("abcdefghijklmnopqrst"), 0, 0, "12345", 0, S("abcdefghijklmnopqrst"));
643     test(S("abcdefghijklmnopqrst"), 0, 0, "12345", 1, S("1abcdefghijklmnopqrst"));
644     test(S("abcdefghijklmnopqrst"), 0, 0, "12345", 2, S("12abcdefghijklmnopqrst"));
645     test(S("abcdefghijklmnopqrst"), 0, 0, "12345", 4, S("1234abcdefghijklmnopqrst"));
646     test(S("abcdefghijklmnopqrst"), 0, 0, "12345", 5, S("12345abcdefghijklmnopqrst"));
647     test(S("abcdefghijklmnopqrst"), 0, 0, "1234567890", 0, S("abcdefghijklmnopqrst"));
648     test(S("abcdefghijklmnopqrst"), 0, 0, "1234567890", 1, S("1abcdefghijklmnopqrst"));
649     test(S("abcdefghijklmnopqrst"), 0, 0, "1234567890", 5, S("12345abcdefghijklmnopqrst"));
650     test(S("abcdefghijklmnopqrst"), 0, 0, "1234567890", 9, S("123456789abcdefghijklmnopqrst"));
651     test(S("abcdefghijklmnopqrst"), 0, 0, "1234567890", 10, S("1234567890abcdefghijklmnopqrst"));
652     test(S("abcdefghijklmnopqrst"), 0, 0, "12345678901234567890", 0, S("abcdefghijklmnopqrst"));
653     test(S("abcdefghijklmnopqrst"), 0, 0, "12345678901234567890", 1, S("1abcdefghijklmnopqrst"));
654     test(S("abcdefghijklmnopqrst"), 0, 0, "12345678901234567890", 10, S("1234567890abcdefghijklmnopqrst"));
655     test(S("abcdefghijklmnopqrst"), 0, 0, "12345678901234567890", 19, S("1234567890123456789abcdefghijklmnopqrst"));
656     test(S("abcdefghijklmnopqrst"), 0, 0, "12345678901234567890", 20, S("12345678901234567890abcdefghijklmnopqrst"));
657     test(S("abcdefghijklmnopqrst"), 0, 1, "", 0, S("bcdefghijklmnopqrst"));
658     test(S("abcdefghijklmnopqrst"), 0, 1, "12345", 0, S("bcdefghijklmnopqrst"));
659     test(S("abcdefghijklmnopqrst"), 0, 1, "12345", 1, S("1bcdefghijklmnopqrst"));
660     test(S("abcdefghijklmnopqrst"), 0, 1, "12345", 2, S("12bcdefghijklmnopqrst"));
661     test(S("abcdefghijklmnopqrst"), 0, 1, "12345", 4, S("1234bcdefghijklmnopqrst"));
662     test(S("abcdefghijklmnopqrst"), 0, 1, "12345", 5, S("12345bcdefghijklmnopqrst"));
663     test(S("abcdefghijklmnopqrst"), 0, 1, "1234567890", 0, S("bcdefghijklmnopqrst"));
664     test(S("abcdefghijklmnopqrst"), 0, 1, "1234567890", 1, S("1bcdefghijklmnopqrst"));
665 }
666 
667 template <class S>
test6()668 void test6()
669 {
670     test(S("abcdefghijklmnopqrst"), 0, 1, "1234567890", 5, S("12345bcdefghijklmnopqrst"));
671     test(S("abcdefghijklmnopqrst"), 0, 1, "1234567890", 9, S("123456789bcdefghijklmnopqrst"));
672     test(S("abcdefghijklmnopqrst"), 0, 1, "1234567890", 10, S("1234567890bcdefghijklmnopqrst"));
673     test(S("abcdefghijklmnopqrst"), 0, 1, "12345678901234567890", 0, S("bcdefghijklmnopqrst"));
674     test(S("abcdefghijklmnopqrst"), 0, 1, "12345678901234567890", 1, S("1bcdefghijklmnopqrst"));
675     test(S("abcdefghijklmnopqrst"), 0, 1, "12345678901234567890", 10, S("1234567890bcdefghijklmnopqrst"));
676     test(S("abcdefghijklmnopqrst"), 0, 1, "12345678901234567890", 19, S("1234567890123456789bcdefghijklmnopqrst"));
677     test(S("abcdefghijklmnopqrst"), 0, 1, "12345678901234567890", 20, S("12345678901234567890bcdefghijklmnopqrst"));
678     test(S("abcdefghijklmnopqrst"), 0, 10, "", 0, S("klmnopqrst"));
679     test(S("abcdefghijklmnopqrst"), 0, 10, "12345", 0, S("klmnopqrst"));
680     test(S("abcdefghijklmnopqrst"), 0, 10, "12345", 1, S("1klmnopqrst"));
681     test(S("abcdefghijklmnopqrst"), 0, 10, "12345", 2, S("12klmnopqrst"));
682     test(S("abcdefghijklmnopqrst"), 0, 10, "12345", 4, S("1234klmnopqrst"));
683     test(S("abcdefghijklmnopqrst"), 0, 10, "12345", 5, S("12345klmnopqrst"));
684     test(S("abcdefghijklmnopqrst"), 0, 10, "1234567890", 0, S("klmnopqrst"));
685     test(S("abcdefghijklmnopqrst"), 0, 10, "1234567890", 1, S("1klmnopqrst"));
686     test(S("abcdefghijklmnopqrst"), 0, 10, "1234567890", 5, S("12345klmnopqrst"));
687     test(S("abcdefghijklmnopqrst"), 0, 10, "1234567890", 9, S("123456789klmnopqrst"));
688     test(S("abcdefghijklmnopqrst"), 0, 10, "1234567890", 10, S("1234567890klmnopqrst"));
689     test(S("abcdefghijklmnopqrst"), 0, 10, "12345678901234567890", 0, S("klmnopqrst"));
690     test(S("abcdefghijklmnopqrst"), 0, 10, "12345678901234567890", 1, S("1klmnopqrst"));
691     test(S("abcdefghijklmnopqrst"), 0, 10, "12345678901234567890", 10, S("1234567890klmnopqrst"));
692     test(S("abcdefghijklmnopqrst"), 0, 10, "12345678901234567890", 19, S("1234567890123456789klmnopqrst"));
693     test(S("abcdefghijklmnopqrst"), 0, 10, "12345678901234567890", 20, S("12345678901234567890klmnopqrst"));
694     test(S("abcdefghijklmnopqrst"), 0, 19, "", 0, S("t"));
695     test(S("abcdefghijklmnopqrst"), 0, 19, "12345", 0, S("t"));
696     test(S("abcdefghijklmnopqrst"), 0, 19, "12345", 1, S("1t"));
697     test(S("abcdefghijklmnopqrst"), 0, 19, "12345", 2, S("12t"));
698     test(S("abcdefghijklmnopqrst"), 0, 19, "12345", 4, S("1234t"));
699     test(S("abcdefghijklmnopqrst"), 0, 19, "12345", 5, S("12345t"));
700     test(S("abcdefghijklmnopqrst"), 0, 19, "1234567890", 0, S("t"));
701     test(S("abcdefghijklmnopqrst"), 0, 19, "1234567890", 1, S("1t"));
702     test(S("abcdefghijklmnopqrst"), 0, 19, "1234567890", 5, S("12345t"));
703     test(S("abcdefghijklmnopqrst"), 0, 19, "1234567890", 9, S("123456789t"));
704     test(S("abcdefghijklmnopqrst"), 0, 19, "1234567890", 10, S("1234567890t"));
705     test(S("abcdefghijklmnopqrst"), 0, 19, "12345678901234567890", 0, S("t"));
706     test(S("abcdefghijklmnopqrst"), 0, 19, "12345678901234567890", 1, S("1t"));
707     test(S("abcdefghijklmnopqrst"), 0, 19, "12345678901234567890", 10, S("1234567890t"));
708     test(S("abcdefghijklmnopqrst"), 0, 19, "12345678901234567890", 19, S("1234567890123456789t"));
709     test(S("abcdefghijklmnopqrst"), 0, 19, "12345678901234567890", 20, S("12345678901234567890t"));
710     test(S("abcdefghijklmnopqrst"), 0, 20, "", 0, S(""));
711     test(S("abcdefghijklmnopqrst"), 0, 20, "12345", 0, S(""));
712     test(S("abcdefghijklmnopqrst"), 0, 20, "12345", 1, S("1"));
713     test(S("abcdefghijklmnopqrst"), 0, 20, "12345", 2, S("12"));
714     test(S("abcdefghijklmnopqrst"), 0, 20, "12345", 4, S("1234"));
715     test(S("abcdefghijklmnopqrst"), 0, 20, "12345", 5, S("12345"));
716     test(S("abcdefghijklmnopqrst"), 0, 20, "1234567890", 0, S(""));
717     test(S("abcdefghijklmnopqrst"), 0, 20, "1234567890", 1, S("1"));
718     test(S("abcdefghijklmnopqrst"), 0, 20, "1234567890", 5, S("12345"));
719     test(S("abcdefghijklmnopqrst"), 0, 20, "1234567890", 9, S("123456789"));
720     test(S("abcdefghijklmnopqrst"), 0, 20, "1234567890", 10, S("1234567890"));
721     test(S("abcdefghijklmnopqrst"), 0, 20, "12345678901234567890", 0, S(""));
722     test(S("abcdefghijklmnopqrst"), 0, 20, "12345678901234567890", 1, S("1"));
723     test(S("abcdefghijklmnopqrst"), 0, 20, "12345678901234567890", 10, S("1234567890"));
724     test(S("abcdefghijklmnopqrst"), 0, 20, "12345678901234567890", 19, S("1234567890123456789"));
725     test(S("abcdefghijklmnopqrst"), 0, 20, "12345678901234567890", 20, S("12345678901234567890"));
726     test(S("abcdefghijklmnopqrst"), 1, 0, "", 0, S("abcdefghijklmnopqrst"));
727     test(S("abcdefghijklmnopqrst"), 1, 0, "12345", 0, S("abcdefghijklmnopqrst"));
728     test(S("abcdefghijklmnopqrst"), 1, 0, "12345", 1, S("a1bcdefghijklmnopqrst"));
729     test(S("abcdefghijklmnopqrst"), 1, 0, "12345", 2, S("a12bcdefghijklmnopqrst"));
730     test(S("abcdefghijklmnopqrst"), 1, 0, "12345", 4, S("a1234bcdefghijklmnopqrst"));
731     test(S("abcdefghijklmnopqrst"), 1, 0, "12345", 5, S("a12345bcdefghijklmnopqrst"));
732     test(S("abcdefghijklmnopqrst"), 1, 0, "1234567890", 0, S("abcdefghijklmnopqrst"));
733     test(S("abcdefghijklmnopqrst"), 1, 0, "1234567890", 1, S("a1bcdefghijklmnopqrst"));
734     test(S("abcdefghijklmnopqrst"), 1, 0, "1234567890", 5, S("a12345bcdefghijklmnopqrst"));
735     test(S("abcdefghijklmnopqrst"), 1, 0, "1234567890", 9, S("a123456789bcdefghijklmnopqrst"));
736     test(S("abcdefghijklmnopqrst"), 1, 0, "1234567890", 10, S("a1234567890bcdefghijklmnopqrst"));
737     test(S("abcdefghijklmnopqrst"), 1, 0, "12345678901234567890", 0, S("abcdefghijklmnopqrst"));
738     test(S("abcdefghijklmnopqrst"), 1, 0, "12345678901234567890", 1, S("a1bcdefghijklmnopqrst"));
739     test(S("abcdefghijklmnopqrst"), 1, 0, "12345678901234567890", 10, S("a1234567890bcdefghijklmnopqrst"));
740     test(S("abcdefghijklmnopqrst"), 1, 0, "12345678901234567890", 19, S("a1234567890123456789bcdefghijklmnopqrst"));
741     test(S("abcdefghijklmnopqrst"), 1, 0, "12345678901234567890", 20, S("a12345678901234567890bcdefghijklmnopqrst"));
742     test(S("abcdefghijklmnopqrst"), 1, 1, "", 0, S("acdefghijklmnopqrst"));
743     test(S("abcdefghijklmnopqrst"), 1, 1, "12345", 0, S("acdefghijklmnopqrst"));
744     test(S("abcdefghijklmnopqrst"), 1, 1, "12345", 1, S("a1cdefghijklmnopqrst"));
745     test(S("abcdefghijklmnopqrst"), 1, 1, "12345", 2, S("a12cdefghijklmnopqrst"));
746     test(S("abcdefghijklmnopqrst"), 1, 1, "12345", 4, S("a1234cdefghijklmnopqrst"));
747     test(S("abcdefghijklmnopqrst"), 1, 1, "12345", 5, S("a12345cdefghijklmnopqrst"));
748     test(S("abcdefghijklmnopqrst"), 1, 1, "1234567890", 0, S("acdefghijklmnopqrst"));
749     test(S("abcdefghijklmnopqrst"), 1, 1, "1234567890", 1, S("a1cdefghijklmnopqrst"));
750     test(S("abcdefghijklmnopqrst"), 1, 1, "1234567890", 5, S("a12345cdefghijklmnopqrst"));
751     test(S("abcdefghijklmnopqrst"), 1, 1, "1234567890", 9, S("a123456789cdefghijklmnopqrst"));
752     test(S("abcdefghijklmnopqrst"), 1, 1, "1234567890", 10, S("a1234567890cdefghijklmnopqrst"));
753     test(S("abcdefghijklmnopqrst"), 1, 1, "12345678901234567890", 0, S("acdefghijklmnopqrst"));
754     test(S("abcdefghijklmnopqrst"), 1, 1, "12345678901234567890", 1, S("a1cdefghijklmnopqrst"));
755     test(S("abcdefghijklmnopqrst"), 1, 1, "12345678901234567890", 10, S("a1234567890cdefghijklmnopqrst"));
756     test(S("abcdefghijklmnopqrst"), 1, 1, "12345678901234567890", 19, S("a1234567890123456789cdefghijklmnopqrst"));
757     test(S("abcdefghijklmnopqrst"), 1, 1, "12345678901234567890", 20, S("a12345678901234567890cdefghijklmnopqrst"));
758     test(S("abcdefghijklmnopqrst"), 1, 9, "", 0, S("aklmnopqrst"));
759     test(S("abcdefghijklmnopqrst"), 1, 9, "12345", 0, S("aklmnopqrst"));
760     test(S("abcdefghijklmnopqrst"), 1, 9, "12345", 1, S("a1klmnopqrst"));
761     test(S("abcdefghijklmnopqrst"), 1, 9, "12345", 2, S("a12klmnopqrst"));
762     test(S("abcdefghijklmnopqrst"), 1, 9, "12345", 4, S("a1234klmnopqrst"));
763     test(S("abcdefghijklmnopqrst"), 1, 9, "12345", 5, S("a12345klmnopqrst"));
764     test(S("abcdefghijklmnopqrst"), 1, 9, "1234567890", 0, S("aklmnopqrst"));
765     test(S("abcdefghijklmnopqrst"), 1, 9, "1234567890", 1, S("a1klmnopqrst"));
766     test(S("abcdefghijklmnopqrst"), 1, 9, "1234567890", 5, S("a12345klmnopqrst"));
767     test(S("abcdefghijklmnopqrst"), 1, 9, "1234567890", 9, S("a123456789klmnopqrst"));
768     test(S("abcdefghijklmnopqrst"), 1, 9, "1234567890", 10, S("a1234567890klmnopqrst"));
769     test(S("abcdefghijklmnopqrst"), 1, 9, "12345678901234567890", 0, S("aklmnopqrst"));
770 }
771 
772 template <class S>
test7()773 void test7()
774 {
775     test(S("abcdefghijklmnopqrst"), 1, 9, "12345678901234567890", 1, S("a1klmnopqrst"));
776     test(S("abcdefghijklmnopqrst"), 1, 9, "12345678901234567890", 10, S("a1234567890klmnopqrst"));
777     test(S("abcdefghijklmnopqrst"), 1, 9, "12345678901234567890", 19, S("a1234567890123456789klmnopqrst"));
778     test(S("abcdefghijklmnopqrst"), 1, 9, "12345678901234567890", 20, S("a12345678901234567890klmnopqrst"));
779     test(S("abcdefghijklmnopqrst"), 1, 18, "", 0, S("at"));
780     test(S("abcdefghijklmnopqrst"), 1, 18, "12345", 0, S("at"));
781     test(S("abcdefghijklmnopqrst"), 1, 18, "12345", 1, S("a1t"));
782     test(S("abcdefghijklmnopqrst"), 1, 18, "12345", 2, S("a12t"));
783     test(S("abcdefghijklmnopqrst"), 1, 18, "12345", 4, S("a1234t"));
784     test(S("abcdefghijklmnopqrst"), 1, 18, "12345", 5, S("a12345t"));
785     test(S("abcdefghijklmnopqrst"), 1, 18, "1234567890", 0, S("at"));
786     test(S("abcdefghijklmnopqrst"), 1, 18, "1234567890", 1, S("a1t"));
787     test(S("abcdefghijklmnopqrst"), 1, 18, "1234567890", 5, S("a12345t"));
788     test(S("abcdefghijklmnopqrst"), 1, 18, "1234567890", 9, S("a123456789t"));
789     test(S("abcdefghijklmnopqrst"), 1, 18, "1234567890", 10, S("a1234567890t"));
790     test(S("abcdefghijklmnopqrst"), 1, 18, "12345678901234567890", 0, S("at"));
791     test(S("abcdefghijklmnopqrst"), 1, 18, "12345678901234567890", 1, S("a1t"));
792     test(S("abcdefghijklmnopqrst"), 1, 18, "12345678901234567890", 10, S("a1234567890t"));
793     test(S("abcdefghijklmnopqrst"), 1, 18, "12345678901234567890", 19, S("a1234567890123456789t"));
794     test(S("abcdefghijklmnopqrst"), 1, 18, "12345678901234567890", 20, S("a12345678901234567890t"));
795     test(S("abcdefghijklmnopqrst"), 1, 19, "", 0, S("a"));
796     test(S("abcdefghijklmnopqrst"), 1, 19, "12345", 0, S("a"));
797     test(S("abcdefghijklmnopqrst"), 1, 19, "12345", 1, S("a1"));
798     test(S("abcdefghijklmnopqrst"), 1, 19, "12345", 2, S("a12"));
799     test(S("abcdefghijklmnopqrst"), 1, 19, "12345", 4, S("a1234"));
800     test(S("abcdefghijklmnopqrst"), 1, 19, "12345", 5, S("a12345"));
801     test(S("abcdefghijklmnopqrst"), 1, 19, "1234567890", 0, S("a"));
802     test(S("abcdefghijklmnopqrst"), 1, 19, "1234567890", 1, S("a1"));
803     test(S("abcdefghijklmnopqrst"), 1, 19, "1234567890", 5, S("a12345"));
804     test(S("abcdefghijklmnopqrst"), 1, 19, "1234567890", 9, S("a123456789"));
805     test(S("abcdefghijklmnopqrst"), 1, 19, "1234567890", 10, S("a1234567890"));
806     test(S("abcdefghijklmnopqrst"), 1, 19, "12345678901234567890", 0, S("a"));
807     test(S("abcdefghijklmnopqrst"), 1, 19, "12345678901234567890", 1, S("a1"));
808     test(S("abcdefghijklmnopqrst"), 1, 19, "12345678901234567890", 10, S("a1234567890"));
809     test(S("abcdefghijklmnopqrst"), 1, 19, "12345678901234567890", 19, S("a1234567890123456789"));
810     test(S("abcdefghijklmnopqrst"), 1, 19, "12345678901234567890", 20, S("a12345678901234567890"));
811     test(S("abcdefghijklmnopqrst"), 10, 0, "", 0, S("abcdefghijklmnopqrst"));
812     test(S("abcdefghijklmnopqrst"), 10, 0, "12345", 0, S("abcdefghijklmnopqrst"));
813     test(S("abcdefghijklmnopqrst"), 10, 0, "12345", 1, S("abcdefghij1klmnopqrst"));
814     test(S("abcdefghijklmnopqrst"), 10, 0, "12345", 2, S("abcdefghij12klmnopqrst"));
815     test(S("abcdefghijklmnopqrst"), 10, 0, "12345", 4, S("abcdefghij1234klmnopqrst"));
816     test(S("abcdefghijklmnopqrst"), 10, 0, "12345", 5, S("abcdefghij12345klmnopqrst"));
817     test(S("abcdefghijklmnopqrst"), 10, 0, "1234567890", 0, S("abcdefghijklmnopqrst"));
818     test(S("abcdefghijklmnopqrst"), 10, 0, "1234567890", 1, S("abcdefghij1klmnopqrst"));
819     test(S("abcdefghijklmnopqrst"), 10, 0, "1234567890", 5, S("abcdefghij12345klmnopqrst"));
820     test(S("abcdefghijklmnopqrst"), 10, 0, "1234567890", 9, S("abcdefghij123456789klmnopqrst"));
821     test(S("abcdefghijklmnopqrst"), 10, 0, "1234567890", 10, S("abcdefghij1234567890klmnopqrst"));
822     test(S("abcdefghijklmnopqrst"), 10, 0, "12345678901234567890", 0, S("abcdefghijklmnopqrst"));
823     test(S("abcdefghijklmnopqrst"), 10, 0, "12345678901234567890", 1, S("abcdefghij1klmnopqrst"));
824     test(S("abcdefghijklmnopqrst"), 10, 0, "12345678901234567890", 10, S("abcdefghij1234567890klmnopqrst"));
825     test(S("abcdefghijklmnopqrst"), 10, 0, "12345678901234567890", 19, S("abcdefghij1234567890123456789klmnopqrst"));
826     test(S("abcdefghijklmnopqrst"), 10, 0, "12345678901234567890", 20, S("abcdefghij12345678901234567890klmnopqrst"));
827     test(S("abcdefghijklmnopqrst"), 10, 1, "", 0, S("abcdefghijlmnopqrst"));
828     test(S("abcdefghijklmnopqrst"), 10, 1, "12345", 0, S("abcdefghijlmnopqrst"));
829     test(S("abcdefghijklmnopqrst"), 10, 1, "12345", 1, S("abcdefghij1lmnopqrst"));
830     test(S("abcdefghijklmnopqrst"), 10, 1, "12345", 2, S("abcdefghij12lmnopqrst"));
831     test(S("abcdefghijklmnopqrst"), 10, 1, "12345", 4, S("abcdefghij1234lmnopqrst"));
832     test(S("abcdefghijklmnopqrst"), 10, 1, "12345", 5, S("abcdefghij12345lmnopqrst"));
833     test(S("abcdefghijklmnopqrst"), 10, 1, "1234567890", 0, S("abcdefghijlmnopqrst"));
834     test(S("abcdefghijklmnopqrst"), 10, 1, "1234567890", 1, S("abcdefghij1lmnopqrst"));
835     test(S("abcdefghijklmnopqrst"), 10, 1, "1234567890", 5, S("abcdefghij12345lmnopqrst"));
836     test(S("abcdefghijklmnopqrst"), 10, 1, "1234567890", 9, S("abcdefghij123456789lmnopqrst"));
837     test(S("abcdefghijklmnopqrst"), 10, 1, "1234567890", 10, S("abcdefghij1234567890lmnopqrst"));
838     test(S("abcdefghijklmnopqrst"), 10, 1, "12345678901234567890", 0, S("abcdefghijlmnopqrst"));
839     test(S("abcdefghijklmnopqrst"), 10, 1, "12345678901234567890", 1, S("abcdefghij1lmnopqrst"));
840     test(S("abcdefghijklmnopqrst"), 10, 1, "12345678901234567890", 10, S("abcdefghij1234567890lmnopqrst"));
841     test(S("abcdefghijklmnopqrst"), 10, 1, "12345678901234567890", 19, S("abcdefghij1234567890123456789lmnopqrst"));
842     test(S("abcdefghijklmnopqrst"), 10, 1, "12345678901234567890", 20, S("abcdefghij12345678901234567890lmnopqrst"));
843     test(S("abcdefghijklmnopqrst"), 10, 5, "", 0, S("abcdefghijpqrst"));
844     test(S("abcdefghijklmnopqrst"), 10, 5, "12345", 0, S("abcdefghijpqrst"));
845     test(S("abcdefghijklmnopqrst"), 10, 5, "12345", 1, S("abcdefghij1pqrst"));
846     test(S("abcdefghijklmnopqrst"), 10, 5, "12345", 2, S("abcdefghij12pqrst"));
847     test(S("abcdefghijklmnopqrst"), 10, 5, "12345", 4, S("abcdefghij1234pqrst"));
848     test(S("abcdefghijklmnopqrst"), 10, 5, "12345", 5, S("abcdefghij12345pqrst"));
849     test(S("abcdefghijklmnopqrst"), 10, 5, "1234567890", 0, S("abcdefghijpqrst"));
850     test(S("abcdefghijklmnopqrst"), 10, 5, "1234567890", 1, S("abcdefghij1pqrst"));
851     test(S("abcdefghijklmnopqrst"), 10, 5, "1234567890", 5, S("abcdefghij12345pqrst"));
852     test(S("abcdefghijklmnopqrst"), 10, 5, "1234567890", 9, S("abcdefghij123456789pqrst"));
853     test(S("abcdefghijklmnopqrst"), 10, 5, "1234567890", 10, S("abcdefghij1234567890pqrst"));
854     test(S("abcdefghijklmnopqrst"), 10, 5, "12345678901234567890", 0, S("abcdefghijpqrst"));
855     test(S("abcdefghijklmnopqrst"), 10, 5, "12345678901234567890", 1, S("abcdefghij1pqrst"));
856     test(S("abcdefghijklmnopqrst"), 10, 5, "12345678901234567890", 10, S("abcdefghij1234567890pqrst"));
857     test(S("abcdefghijklmnopqrst"), 10, 5, "12345678901234567890", 19, S("abcdefghij1234567890123456789pqrst"));
858     test(S("abcdefghijklmnopqrst"), 10, 5, "12345678901234567890", 20, S("abcdefghij12345678901234567890pqrst"));
859     test(S("abcdefghijklmnopqrst"), 10, 9, "", 0, S("abcdefghijt"));
860     test(S("abcdefghijklmnopqrst"), 10, 9, "12345", 0, S("abcdefghijt"));
861     test(S("abcdefghijklmnopqrst"), 10, 9, "12345", 1, S("abcdefghij1t"));
862     test(S("abcdefghijklmnopqrst"), 10, 9, "12345", 2, S("abcdefghij12t"));
863     test(S("abcdefghijklmnopqrst"), 10, 9, "12345", 4, S("abcdefghij1234t"));
864     test(S("abcdefghijklmnopqrst"), 10, 9, "12345", 5, S("abcdefghij12345t"));
865     test(S("abcdefghijklmnopqrst"), 10, 9, "1234567890", 0, S("abcdefghijt"));
866     test(S("abcdefghijklmnopqrst"), 10, 9, "1234567890", 1, S("abcdefghij1t"));
867     test(S("abcdefghijklmnopqrst"), 10, 9, "1234567890", 5, S("abcdefghij12345t"));
868     test(S("abcdefghijklmnopqrst"), 10, 9, "1234567890", 9, S("abcdefghij123456789t"));
869     test(S("abcdefghijklmnopqrst"), 10, 9, "1234567890", 10, S("abcdefghij1234567890t"));
870     test(S("abcdefghijklmnopqrst"), 10, 9, "12345678901234567890", 0, S("abcdefghijt"));
871     test(S("abcdefghijklmnopqrst"), 10, 9, "12345678901234567890", 1, S("abcdefghij1t"));
872     test(S("abcdefghijklmnopqrst"), 10, 9, "12345678901234567890", 10, S("abcdefghij1234567890t"));
873     test(S("abcdefghijklmnopqrst"), 10, 9, "12345678901234567890", 19, S("abcdefghij1234567890123456789t"));
874     test(S("abcdefghijklmnopqrst"), 10, 9, "12345678901234567890", 20, S("abcdefghij12345678901234567890t"));
875 }
876 
877 template <class S>
test8()878 void test8()
879 {
880     test(S("abcdefghijklmnopqrst"), 10, 10, "", 0, S("abcdefghij"));
881     test(S("abcdefghijklmnopqrst"), 10, 10, "12345", 0, S("abcdefghij"));
882     test(S("abcdefghijklmnopqrst"), 10, 10, "12345", 1, S("abcdefghij1"));
883     test(S("abcdefghijklmnopqrst"), 10, 10, "12345", 2, S("abcdefghij12"));
884     test(S("abcdefghijklmnopqrst"), 10, 10, "12345", 4, S("abcdefghij1234"));
885     test(S("abcdefghijklmnopqrst"), 10, 10, "12345", 5, S("abcdefghij12345"));
886     test(S("abcdefghijklmnopqrst"), 10, 10, "1234567890", 0, S("abcdefghij"));
887     test(S("abcdefghijklmnopqrst"), 10, 10, "1234567890", 1, S("abcdefghij1"));
888     test(S("abcdefghijklmnopqrst"), 10, 10, "1234567890", 5, S("abcdefghij12345"));
889     test(S("abcdefghijklmnopqrst"), 10, 10, "1234567890", 9, S("abcdefghij123456789"));
890     test(S("abcdefghijklmnopqrst"), 10, 10, "1234567890", 10, S("abcdefghij1234567890"));
891     test(S("abcdefghijklmnopqrst"), 10, 10, "12345678901234567890", 0, S("abcdefghij"));
892     test(S("abcdefghijklmnopqrst"), 10, 10, "12345678901234567890", 1, S("abcdefghij1"));
893     test(S("abcdefghijklmnopqrst"), 10, 10, "12345678901234567890", 10, S("abcdefghij1234567890"));
894     test(S("abcdefghijklmnopqrst"), 10, 10, "12345678901234567890", 19, S("abcdefghij1234567890123456789"));
895     test(S("abcdefghijklmnopqrst"), 10, 10, "12345678901234567890", 20, S("abcdefghij12345678901234567890"));
896     test(S("abcdefghijklmnopqrst"), 19, 0, "", 0, S("abcdefghijklmnopqrst"));
897     test(S("abcdefghijklmnopqrst"), 19, 0, "12345", 0, S("abcdefghijklmnopqrst"));
898     test(S("abcdefghijklmnopqrst"), 19, 0, "12345", 1, S("abcdefghijklmnopqrs1t"));
899     test(S("abcdefghijklmnopqrst"), 19, 0, "12345", 2, S("abcdefghijklmnopqrs12t"));
900     test(S("abcdefghijklmnopqrst"), 19, 0, "12345", 4, S("abcdefghijklmnopqrs1234t"));
901     test(S("abcdefghijklmnopqrst"), 19, 0, "12345", 5, S("abcdefghijklmnopqrs12345t"));
902     test(S("abcdefghijklmnopqrst"), 19, 0, "1234567890", 0, S("abcdefghijklmnopqrst"));
903     test(S("abcdefghijklmnopqrst"), 19, 0, "1234567890", 1, S("abcdefghijklmnopqrs1t"));
904     test(S("abcdefghijklmnopqrst"), 19, 0, "1234567890", 5, S("abcdefghijklmnopqrs12345t"));
905     test(S("abcdefghijklmnopqrst"), 19, 0, "1234567890", 9, S("abcdefghijklmnopqrs123456789t"));
906     test(S("abcdefghijklmnopqrst"), 19, 0, "1234567890", 10, S("abcdefghijklmnopqrs1234567890t"));
907     test(S("abcdefghijklmnopqrst"), 19, 0, "12345678901234567890", 0, S("abcdefghijklmnopqrst"));
908     test(S("abcdefghijklmnopqrst"), 19, 0, "12345678901234567890", 1, S("abcdefghijklmnopqrs1t"));
909     test(S("abcdefghijklmnopqrst"), 19, 0, "12345678901234567890", 10, S("abcdefghijklmnopqrs1234567890t"));
910     test(S("abcdefghijklmnopqrst"), 19, 0, "12345678901234567890", 19, S("abcdefghijklmnopqrs1234567890123456789t"));
911     test(S("abcdefghijklmnopqrst"), 19, 0, "12345678901234567890", 20, S("abcdefghijklmnopqrs12345678901234567890t"));
912     test(S("abcdefghijklmnopqrst"), 19, 1, "", 0, S("abcdefghijklmnopqrs"));
913     test(S("abcdefghijklmnopqrst"), 19, 1, "12345", 0, S("abcdefghijklmnopqrs"));
914     test(S("abcdefghijklmnopqrst"), 19, 1, "12345", 1, S("abcdefghijklmnopqrs1"));
915     test(S("abcdefghijklmnopqrst"), 19, 1, "12345", 2, S("abcdefghijklmnopqrs12"));
916     test(S("abcdefghijklmnopqrst"), 19, 1, "12345", 4, S("abcdefghijklmnopqrs1234"));
917     test(S("abcdefghijklmnopqrst"), 19, 1, "12345", 5, S("abcdefghijklmnopqrs12345"));
918     test(S("abcdefghijklmnopqrst"), 19, 1, "1234567890", 0, S("abcdefghijklmnopqrs"));
919     test(S("abcdefghijklmnopqrst"), 19, 1, "1234567890", 1, S("abcdefghijklmnopqrs1"));
920     test(S("abcdefghijklmnopqrst"), 19, 1, "1234567890", 5, S("abcdefghijklmnopqrs12345"));
921     test(S("abcdefghijklmnopqrst"), 19, 1, "1234567890", 9, S("abcdefghijklmnopqrs123456789"));
922     test(S("abcdefghijklmnopqrst"), 19, 1, "1234567890", 10, S("abcdefghijklmnopqrs1234567890"));
923     test(S("abcdefghijklmnopqrst"), 19, 1, "12345678901234567890", 0, S("abcdefghijklmnopqrs"));
924     test(S("abcdefghijklmnopqrst"), 19, 1, "12345678901234567890", 1, S("abcdefghijklmnopqrs1"));
925     test(S("abcdefghijklmnopqrst"), 19, 1, "12345678901234567890", 10, S("abcdefghijklmnopqrs1234567890"));
926     test(S("abcdefghijklmnopqrst"), 19, 1, "12345678901234567890", 19, S("abcdefghijklmnopqrs1234567890123456789"));
927     test(S("abcdefghijklmnopqrst"), 19, 1, "12345678901234567890", 20, S("abcdefghijklmnopqrs12345678901234567890"));
928     test(S("abcdefghijklmnopqrst"), 20, 0, "", 0, S("abcdefghijklmnopqrst"));
929     test(S("abcdefghijklmnopqrst"), 20, 0, "12345", 0, S("abcdefghijklmnopqrst"));
930     test(S("abcdefghijklmnopqrst"), 20, 0, "12345", 1, S("abcdefghijklmnopqrst1"));
931     test(S("abcdefghijklmnopqrst"), 20, 0, "12345", 2, S("abcdefghijklmnopqrst12"));
932     test(S("abcdefghijklmnopqrst"), 20, 0, "12345", 4, S("abcdefghijklmnopqrst1234"));
933     test(S("abcdefghijklmnopqrst"), 20, 0, "12345", 5, S("abcdefghijklmnopqrst12345"));
934     test(S("abcdefghijklmnopqrst"), 20, 0, "1234567890", 0, S("abcdefghijklmnopqrst"));
935     test(S("abcdefghijklmnopqrst"), 20, 0, "1234567890", 1, S("abcdefghijklmnopqrst1"));
936     test(S("abcdefghijklmnopqrst"), 20, 0, "1234567890", 5, S("abcdefghijklmnopqrst12345"));
937     test(S("abcdefghijklmnopqrst"), 20, 0, "1234567890", 9, S("abcdefghijklmnopqrst123456789"));
938     test(S("abcdefghijklmnopqrst"), 20, 0, "1234567890", 10, S("abcdefghijklmnopqrst1234567890"));
939     test(S("abcdefghijklmnopqrst"), 20, 0, "12345678901234567890", 0, S("abcdefghijklmnopqrst"));
940     test(S("abcdefghijklmnopqrst"), 20, 0, "12345678901234567890", 1, S("abcdefghijklmnopqrst1"));
941     test(S("abcdefghijklmnopqrst"), 20, 0, "12345678901234567890", 10, S("abcdefghijklmnopqrst1234567890"));
942     test(S("abcdefghijklmnopqrst"), 20, 0, "12345678901234567890", 19, S("abcdefghijklmnopqrst1234567890123456789"));
943     test(S("abcdefghijklmnopqrst"), 20, 0, "12345678901234567890", 20, S("abcdefghijklmnopqrst12345678901234567890"));
944 }
945 
main(int,char **)946 int main(int, char**)
947 {
948     {
949     typedef std::string S;
950     test0<S>();
951     test1<S>();
952     test2<S>();
953     test3<S>();
954     test4<S>();
955     test5<S>();
956     test6<S>();
957     test7<S>();
958     test8<S>();
959     }
960 #if TEST_STD_VER >= 11
961     {
962     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
963     test0<S>();
964     test1<S>();
965     test2<S>();
966     test3<S>();
967     test4<S>();
968     test5<S>();
969     test6<S>();
970     test7<S>();
971     test8<S>();
972     }
973 #endif
974 
975     { // test replacing into self
976     typedef std::string S;
977     S s_short = "123/";
978     S s_long  = "Lorem ipsum dolor sit amet, consectetur/";
979 
980     s_short.replace(s_short.begin(), s_short.begin(), s_short.data(), s_short.size());
981     assert(s_short == "123/123/");
982     s_short.replace(s_short.begin(), s_short.begin(), s_short.data(), s_short.size());
983     assert(s_short == "123/123/123/123/");
984     s_short.replace(s_short.begin(), s_short.begin(), s_short.data(), s_short.size());
985     assert(s_short == "123/123/123/123/123/123/123/123/");
986 
987     s_long.replace(s_long.begin(), s_long.begin(), s_long.data(), s_long.size());
988     assert(s_long == "Lorem ipsum dolor sit amet, consectetur/Lorem ipsum dolor sit amet, consectetur/");
989     }
990 
991   return 0;
992 }
993