1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <string>
11 
12 // basic_string<charT,traits,Allocator>&
13 //   replace(size_type pos1, size_type n1, const basic_string<charT,traits,Allocator>& str);
14 
15 #include <string>
16 #include <stdexcept>
17 #include <algorithm>
18 #include <cassert>
19 
20 #include "min_allocator.h"
21 
22 template <class S>
23 void
test(S s,typename S::size_type pos1,typename S::size_type n1,S str,S expected)24 test(S s, typename S::size_type pos1, typename S::size_type n1, S str, S expected)
25 {
26     typename S::size_type old_size = s.size();
27     S s0 = s;
28     try
29     {
30         s.replace(pos1, n1, str);
31         assert(s.__invariants());
32         assert(pos1 <= old_size);
33         assert(s == expected);
34         typename S::size_type xlen = std::min(n1, old_size - pos1);
35         typename S::size_type rlen = str.size();
36         assert(s.size() == old_size - xlen + rlen);
37     }
38     catch (std::out_of_range&)
39     {
40         assert(pos1 > old_size);
41         assert(s == s0);
42     }
43 }
44 
45 template <class S>
test0()46 void test0()
47 {
48     test(S(""), 0, 0, S(""), S(""));
49     test(S(""), 0, 0, S("12345"), S("12345"));
50     test(S(""), 0, 0, S("1234567890"), S("1234567890"));
51     test(S(""), 0, 0, S("12345678901234567890"), S("12345678901234567890"));
52     test(S(""), 0, 1, S(""), S(""));
53     test(S(""), 0, 1, S("12345"), S("12345"));
54     test(S(""), 0, 1, S("1234567890"), S("1234567890"));
55     test(S(""), 0, 1, S("12345678901234567890"), S("12345678901234567890"));
56     test(S(""), 1, 0, S(""), S("can't happen"));
57     test(S(""), 1, 0, S("12345"), S("can't happen"));
58     test(S(""), 1, 0, S("1234567890"), S("can't happen"));
59     test(S(""), 1, 0, S("12345678901234567890"), S("can't happen"));
60     test(S("abcde"), 0, 0, S(""), S("abcde"));
61     test(S("abcde"), 0, 0, S("12345"), S("12345abcde"));
62     test(S("abcde"), 0, 0, S("1234567890"), S("1234567890abcde"));
63     test(S("abcde"), 0, 0, S("12345678901234567890"), S("12345678901234567890abcde"));
64     test(S("abcde"), 0, 1, S(""), S("bcde"));
65     test(S("abcde"), 0, 1, S("12345"), S("12345bcde"));
66     test(S("abcde"), 0, 1, S("1234567890"), S("1234567890bcde"));
67     test(S("abcde"), 0, 1, S("12345678901234567890"), S("12345678901234567890bcde"));
68     test(S("abcde"), 0, 2, S(""), S("cde"));
69     test(S("abcde"), 0, 2, S("12345"), S("12345cde"));
70     test(S("abcde"), 0, 2, S("1234567890"), S("1234567890cde"));
71     test(S("abcde"), 0, 2, S("12345678901234567890"), S("12345678901234567890cde"));
72     test(S("abcde"), 0, 4, S(""), S("e"));
73     test(S("abcde"), 0, 4, S("12345"), S("12345e"));
74     test(S("abcde"), 0, 4, S("1234567890"), S("1234567890e"));
75     test(S("abcde"), 0, 4, S("12345678901234567890"), S("12345678901234567890e"));
76     test(S("abcde"), 0, 5, S(""), S(""));
77     test(S("abcde"), 0, 5, S("12345"), S("12345"));
78     test(S("abcde"), 0, 5, S("1234567890"), S("1234567890"));
79     test(S("abcde"), 0, 5, S("12345678901234567890"), S("12345678901234567890"));
80     test(S("abcde"), 0, 6, S(""), S(""));
81     test(S("abcde"), 0, 6, S("12345"), S("12345"));
82     test(S("abcde"), 0, 6, S("1234567890"), S("1234567890"));
83     test(S("abcde"), 0, 6, S("12345678901234567890"), S("12345678901234567890"));
84     test(S("abcde"), 1, 0, S(""), S("abcde"));
85     test(S("abcde"), 1, 0, S("12345"), S("a12345bcde"));
86     test(S("abcde"), 1, 0, S("1234567890"), S("a1234567890bcde"));
87     test(S("abcde"), 1, 0, S("12345678901234567890"), S("a12345678901234567890bcde"));
88     test(S("abcde"), 1, 1, S(""), S("acde"));
89     test(S("abcde"), 1, 1, S("12345"), S("a12345cde"));
90     test(S("abcde"), 1, 1, S("1234567890"), S("a1234567890cde"));
91     test(S("abcde"), 1, 1, S("12345678901234567890"), S("a12345678901234567890cde"));
92     test(S("abcde"), 1, 2, S(""), S("ade"));
93     test(S("abcde"), 1, 2, S("12345"), S("a12345de"));
94     test(S("abcde"), 1, 2, S("1234567890"), S("a1234567890de"));
95     test(S("abcde"), 1, 2, S("12345678901234567890"), S("a12345678901234567890de"));
96     test(S("abcde"), 1, 3, S(""), S("ae"));
97     test(S("abcde"), 1, 3, S("12345"), S("a12345e"));
98     test(S("abcde"), 1, 3, S("1234567890"), S("a1234567890e"));
99     test(S("abcde"), 1, 3, S("12345678901234567890"), S("a12345678901234567890e"));
100     test(S("abcde"), 1, 4, S(""), S("a"));
101     test(S("abcde"), 1, 4, S("12345"), S("a12345"));
102     test(S("abcde"), 1, 4, S("1234567890"), S("a1234567890"));
103     test(S("abcde"), 1, 4, S("12345678901234567890"), S("a12345678901234567890"));
104     test(S("abcde"), 1, 5, S(""), S("a"));
105     test(S("abcde"), 1, 5, S("12345"), S("a12345"));
106     test(S("abcde"), 1, 5, S("1234567890"), S("a1234567890"));
107     test(S("abcde"), 1, 5, S("12345678901234567890"), S("a12345678901234567890"));
108     test(S("abcde"), 2, 0, S(""), S("abcde"));
109     test(S("abcde"), 2, 0, S("12345"), S("ab12345cde"));
110     test(S("abcde"), 2, 0, S("1234567890"), S("ab1234567890cde"));
111     test(S("abcde"), 2, 0, S("12345678901234567890"), S("ab12345678901234567890cde"));
112     test(S("abcde"), 2, 1, S(""), S("abde"));
113     test(S("abcde"), 2, 1, S("12345"), S("ab12345de"));
114     test(S("abcde"), 2, 1, S("1234567890"), S("ab1234567890de"));
115     test(S("abcde"), 2, 1, S("12345678901234567890"), S("ab12345678901234567890de"));
116     test(S("abcde"), 2, 2, S(""), S("abe"));
117     test(S("abcde"), 2, 2, S("12345"), S("ab12345e"));
118     test(S("abcde"), 2, 2, S("1234567890"), S("ab1234567890e"));
119     test(S("abcde"), 2, 2, S("12345678901234567890"), S("ab12345678901234567890e"));
120     test(S("abcde"), 2, 3, S(""), S("ab"));
121     test(S("abcde"), 2, 3, S("12345"), S("ab12345"));
122     test(S("abcde"), 2, 3, S("1234567890"), S("ab1234567890"));
123     test(S("abcde"), 2, 3, S("12345678901234567890"), S("ab12345678901234567890"));
124     test(S("abcde"), 2, 4, S(""), S("ab"));
125     test(S("abcde"), 2, 4, S("12345"), S("ab12345"));
126     test(S("abcde"), 2, 4, S("1234567890"), S("ab1234567890"));
127     test(S("abcde"), 2, 4, S("12345678901234567890"), S("ab12345678901234567890"));
128     test(S("abcde"), 4, 0, S(""), S("abcde"));
129     test(S("abcde"), 4, 0, S("12345"), S("abcd12345e"));
130     test(S("abcde"), 4, 0, S("1234567890"), S("abcd1234567890e"));
131     test(S("abcde"), 4, 0, S("12345678901234567890"), S("abcd12345678901234567890e"));
132     test(S("abcde"), 4, 1, S(""), S("abcd"));
133     test(S("abcde"), 4, 1, S("12345"), S("abcd12345"));
134     test(S("abcde"), 4, 1, S("1234567890"), S("abcd1234567890"));
135     test(S("abcde"), 4, 1, S("12345678901234567890"), S("abcd12345678901234567890"));
136     test(S("abcde"), 4, 2, S(""), S("abcd"));
137     test(S("abcde"), 4, 2, S("12345"), S("abcd12345"));
138     test(S("abcde"), 4, 2, S("1234567890"), S("abcd1234567890"));
139     test(S("abcde"), 4, 2, S("12345678901234567890"), S("abcd12345678901234567890"));
140     test(S("abcde"), 5, 0, S(""), S("abcde"));
141     test(S("abcde"), 5, 0, S("12345"), S("abcde12345"));
142     test(S("abcde"), 5, 0, S("1234567890"), S("abcde1234567890"));
143     test(S("abcde"), 5, 0, S("12345678901234567890"), S("abcde12345678901234567890"));
144     test(S("abcde"), 5, 1, S(""), S("abcde"));
145     test(S("abcde"), 5, 1, S("12345"), S("abcde12345"));
146     test(S("abcde"), 5, 1, S("1234567890"), S("abcde1234567890"));
147     test(S("abcde"), 5, 1, S("12345678901234567890"), S("abcde12345678901234567890"));
148 }
149 
150 template <class S>
test1()151 void test1()
152 {
153     test(S("abcde"), 6, 0, S(""), S("can't happen"));
154     test(S("abcde"), 6, 0, S("12345"), S("can't happen"));
155     test(S("abcde"), 6, 0, S("1234567890"), S("can't happen"));
156     test(S("abcde"), 6, 0, S("12345678901234567890"), S("can't happen"));
157     test(S("abcdefghij"), 0, 0, S(""), S("abcdefghij"));
158     test(S("abcdefghij"), 0, 0, S("12345"), S("12345abcdefghij"));
159     test(S("abcdefghij"), 0, 0, S("1234567890"), S("1234567890abcdefghij"));
160     test(S("abcdefghij"), 0, 0, S("12345678901234567890"), S("12345678901234567890abcdefghij"));
161     test(S("abcdefghij"), 0, 1, S(""), S("bcdefghij"));
162     test(S("abcdefghij"), 0, 1, S("12345"), S("12345bcdefghij"));
163     test(S("abcdefghij"), 0, 1, S("1234567890"), S("1234567890bcdefghij"));
164     test(S("abcdefghij"), 0, 1, S("12345678901234567890"), S("12345678901234567890bcdefghij"));
165     test(S("abcdefghij"), 0, 5, S(""), S("fghij"));
166     test(S("abcdefghij"), 0, 5, S("12345"), S("12345fghij"));
167     test(S("abcdefghij"), 0, 5, S("1234567890"), S("1234567890fghij"));
168     test(S("abcdefghij"), 0, 5, S("12345678901234567890"), S("12345678901234567890fghij"));
169     test(S("abcdefghij"), 0, 9, S(""), S("j"));
170     test(S("abcdefghij"), 0, 9, S("12345"), S("12345j"));
171     test(S("abcdefghij"), 0, 9, S("1234567890"), S("1234567890j"));
172     test(S("abcdefghij"), 0, 9, S("12345678901234567890"), S("12345678901234567890j"));
173     test(S("abcdefghij"), 0, 10, S(""), S(""));
174     test(S("abcdefghij"), 0, 10, S("12345"), S("12345"));
175     test(S("abcdefghij"), 0, 10, S("1234567890"), S("1234567890"));
176     test(S("abcdefghij"), 0, 10, S("12345678901234567890"), S("12345678901234567890"));
177     test(S("abcdefghij"), 0, 11, S(""), S(""));
178     test(S("abcdefghij"), 0, 11, S("12345"), S("12345"));
179     test(S("abcdefghij"), 0, 11, S("1234567890"), S("1234567890"));
180     test(S("abcdefghij"), 0, 11, S("12345678901234567890"), S("12345678901234567890"));
181     test(S("abcdefghij"), 1, 0, S(""), S("abcdefghij"));
182     test(S("abcdefghij"), 1, 0, S("12345"), S("a12345bcdefghij"));
183     test(S("abcdefghij"), 1, 0, S("1234567890"), S("a1234567890bcdefghij"));
184     test(S("abcdefghij"), 1, 0, S("12345678901234567890"), S("a12345678901234567890bcdefghij"));
185     test(S("abcdefghij"), 1, 1, S(""), S("acdefghij"));
186     test(S("abcdefghij"), 1, 1, S("12345"), S("a12345cdefghij"));
187     test(S("abcdefghij"), 1, 1, S("1234567890"), S("a1234567890cdefghij"));
188     test(S("abcdefghij"), 1, 1, S("12345678901234567890"), S("a12345678901234567890cdefghij"));
189     test(S("abcdefghij"), 1, 4, S(""), S("afghij"));
190     test(S("abcdefghij"), 1, 4, S("12345"), S("a12345fghij"));
191     test(S("abcdefghij"), 1, 4, S("1234567890"), S("a1234567890fghij"));
192     test(S("abcdefghij"), 1, 4, S("12345678901234567890"), S("a12345678901234567890fghij"));
193     test(S("abcdefghij"), 1, 8, S(""), S("aj"));
194     test(S("abcdefghij"), 1, 8, S("12345"), S("a12345j"));
195     test(S("abcdefghij"), 1, 8, S("1234567890"), S("a1234567890j"));
196     test(S("abcdefghij"), 1, 8, S("12345678901234567890"), S("a12345678901234567890j"));
197     test(S("abcdefghij"), 1, 9, S(""), S("a"));
198     test(S("abcdefghij"), 1, 9, S("12345"), S("a12345"));
199     test(S("abcdefghij"), 1, 9, S("1234567890"), S("a1234567890"));
200     test(S("abcdefghij"), 1, 9, S("12345678901234567890"), S("a12345678901234567890"));
201     test(S("abcdefghij"), 1, 10, S(""), S("a"));
202     test(S("abcdefghij"), 1, 10, S("12345"), S("a12345"));
203     test(S("abcdefghij"), 1, 10, S("1234567890"), S("a1234567890"));
204     test(S("abcdefghij"), 1, 10, S("12345678901234567890"), S("a12345678901234567890"));
205     test(S("abcdefghij"), 5, 0, S(""), S("abcdefghij"));
206     test(S("abcdefghij"), 5, 0, S("12345"), S("abcde12345fghij"));
207     test(S("abcdefghij"), 5, 0, S("1234567890"), S("abcde1234567890fghij"));
208     test(S("abcdefghij"), 5, 0, S("12345678901234567890"), S("abcde12345678901234567890fghij"));
209     test(S("abcdefghij"), 5, 1, S(""), S("abcdeghij"));
210     test(S("abcdefghij"), 5, 1, S("12345"), S("abcde12345ghij"));
211     test(S("abcdefghij"), 5, 1, S("1234567890"), S("abcde1234567890ghij"));
212     test(S("abcdefghij"), 5, 1, S("12345678901234567890"), S("abcde12345678901234567890ghij"));
213     test(S("abcdefghij"), 5, 2, S(""), S("abcdehij"));
214     test(S("abcdefghij"), 5, 2, S("12345"), S("abcde12345hij"));
215     test(S("abcdefghij"), 5, 2, S("1234567890"), S("abcde1234567890hij"));
216     test(S("abcdefghij"), 5, 2, S("12345678901234567890"), S("abcde12345678901234567890hij"));
217     test(S("abcdefghij"), 5, 4, S(""), S("abcdej"));
218     test(S("abcdefghij"), 5, 4, S("12345"), S("abcde12345j"));
219     test(S("abcdefghij"), 5, 4, S("1234567890"), S("abcde1234567890j"));
220     test(S("abcdefghij"), 5, 4, S("12345678901234567890"), S("abcde12345678901234567890j"));
221     test(S("abcdefghij"), 5, 5, S(""), S("abcde"));
222     test(S("abcdefghij"), 5, 5, S("12345"), S("abcde12345"));
223     test(S("abcdefghij"), 5, 5, S("1234567890"), S("abcde1234567890"));
224     test(S("abcdefghij"), 5, 5, S("12345678901234567890"), S("abcde12345678901234567890"));
225     test(S("abcdefghij"), 5, 6, S(""), S("abcde"));
226     test(S("abcdefghij"), 5, 6, S("12345"), S("abcde12345"));
227     test(S("abcdefghij"), 5, 6, S("1234567890"), S("abcde1234567890"));
228     test(S("abcdefghij"), 5, 6, S("12345678901234567890"), S("abcde12345678901234567890"));
229     test(S("abcdefghij"), 9, 0, S(""), S("abcdefghij"));
230     test(S("abcdefghij"), 9, 0, S("12345"), S("abcdefghi12345j"));
231     test(S("abcdefghij"), 9, 0, S("1234567890"), S("abcdefghi1234567890j"));
232     test(S("abcdefghij"), 9, 0, S("12345678901234567890"), S("abcdefghi12345678901234567890j"));
233     test(S("abcdefghij"), 9, 1, S(""), S("abcdefghi"));
234     test(S("abcdefghij"), 9, 1, S("12345"), S("abcdefghi12345"));
235     test(S("abcdefghij"), 9, 1, S("1234567890"), S("abcdefghi1234567890"));
236     test(S("abcdefghij"), 9, 1, S("12345678901234567890"), S("abcdefghi12345678901234567890"));
237     test(S("abcdefghij"), 9, 2, S(""), S("abcdefghi"));
238     test(S("abcdefghij"), 9, 2, S("12345"), S("abcdefghi12345"));
239     test(S("abcdefghij"), 9, 2, S("1234567890"), S("abcdefghi1234567890"));
240     test(S("abcdefghij"), 9, 2, S("12345678901234567890"), S("abcdefghi12345678901234567890"));
241     test(S("abcdefghij"), 10, 0, S(""), S("abcdefghij"));
242     test(S("abcdefghij"), 10, 0, S("12345"), S("abcdefghij12345"));
243     test(S("abcdefghij"), 10, 0, S("1234567890"), S("abcdefghij1234567890"));
244     test(S("abcdefghij"), 10, 0, S("12345678901234567890"), S("abcdefghij12345678901234567890"));
245     test(S("abcdefghij"), 10, 1, S(""), S("abcdefghij"));
246     test(S("abcdefghij"), 10, 1, S("12345"), S("abcdefghij12345"));
247     test(S("abcdefghij"), 10, 1, S("1234567890"), S("abcdefghij1234567890"));
248     test(S("abcdefghij"), 10, 1, S("12345678901234567890"), S("abcdefghij12345678901234567890"));
249     test(S("abcdefghij"), 11, 0, S(""), S("can't happen"));
250     test(S("abcdefghij"), 11, 0, S("12345"), S("can't happen"));
251     test(S("abcdefghij"), 11, 0, S("1234567890"), S("can't happen"));
252     test(S("abcdefghij"), 11, 0, S("12345678901234567890"), S("can't happen"));
253 }
254 
255 template <class S>
test2()256 void test2()
257 {
258     test(S("abcdefghijklmnopqrst"), 0, 0, S(""), S("abcdefghijklmnopqrst"));
259     test(S("abcdefghijklmnopqrst"), 0, 0, S("12345"), S("12345abcdefghijklmnopqrst"));
260     test(S("abcdefghijklmnopqrst"), 0, 0, S("1234567890"), S("1234567890abcdefghijklmnopqrst"));
261     test(S("abcdefghijklmnopqrst"), 0, 0, S("12345678901234567890"), S("12345678901234567890abcdefghijklmnopqrst"));
262     test(S("abcdefghijklmnopqrst"), 0, 1, S(""), S("bcdefghijklmnopqrst"));
263     test(S("abcdefghijklmnopqrst"), 0, 1, S("12345"), S("12345bcdefghijklmnopqrst"));
264     test(S("abcdefghijklmnopqrst"), 0, 1, S("1234567890"), S("1234567890bcdefghijklmnopqrst"));
265     test(S("abcdefghijklmnopqrst"), 0, 1, S("12345678901234567890"), S("12345678901234567890bcdefghijklmnopqrst"));
266     test(S("abcdefghijklmnopqrst"), 0, 10, S(""), S("klmnopqrst"));
267     test(S("abcdefghijklmnopqrst"), 0, 10, S("12345"), S("12345klmnopqrst"));
268     test(S("abcdefghijklmnopqrst"), 0, 10, S("1234567890"), S("1234567890klmnopqrst"));
269     test(S("abcdefghijklmnopqrst"), 0, 10, S("12345678901234567890"), S("12345678901234567890klmnopqrst"));
270     test(S("abcdefghijklmnopqrst"), 0, 19, S(""), S("t"));
271     test(S("abcdefghijklmnopqrst"), 0, 19, S("12345"), S("12345t"));
272     test(S("abcdefghijklmnopqrst"), 0, 19, S("1234567890"), S("1234567890t"));
273     test(S("abcdefghijklmnopqrst"), 0, 19, S("12345678901234567890"), S("12345678901234567890t"));
274     test(S("abcdefghijklmnopqrst"), 0, 20, S(""), S(""));
275     test(S("abcdefghijklmnopqrst"), 0, 20, S("12345"), S("12345"));
276     test(S("abcdefghijklmnopqrst"), 0, 20, S("1234567890"), S("1234567890"));
277     test(S("abcdefghijklmnopqrst"), 0, 20, S("12345678901234567890"), S("12345678901234567890"));
278     test(S("abcdefghijklmnopqrst"), 0, 21, S(""), S(""));
279     test(S("abcdefghijklmnopqrst"), 0, 21, S("12345"), S("12345"));
280     test(S("abcdefghijklmnopqrst"), 0, 21, S("1234567890"), S("1234567890"));
281     test(S("abcdefghijklmnopqrst"), 0, 21, S("12345678901234567890"), S("12345678901234567890"));
282     test(S("abcdefghijklmnopqrst"), 1, 0, S(""), S("abcdefghijklmnopqrst"));
283     test(S("abcdefghijklmnopqrst"), 1, 0, S("12345"), S("a12345bcdefghijklmnopqrst"));
284     test(S("abcdefghijklmnopqrst"), 1, 0, S("1234567890"), S("a1234567890bcdefghijklmnopqrst"));
285     test(S("abcdefghijklmnopqrst"), 1, 0, S("12345678901234567890"), S("a12345678901234567890bcdefghijklmnopqrst"));
286     test(S("abcdefghijklmnopqrst"), 1, 1, S(""), S("acdefghijklmnopqrst"));
287     test(S("abcdefghijklmnopqrst"), 1, 1, S("12345"), S("a12345cdefghijklmnopqrst"));
288     test(S("abcdefghijklmnopqrst"), 1, 1, S("1234567890"), S("a1234567890cdefghijklmnopqrst"));
289     test(S("abcdefghijklmnopqrst"), 1, 1, S("12345678901234567890"), S("a12345678901234567890cdefghijklmnopqrst"));
290     test(S("abcdefghijklmnopqrst"), 1, 9, S(""), S("aklmnopqrst"));
291     test(S("abcdefghijklmnopqrst"), 1, 9, S("12345"), S("a12345klmnopqrst"));
292     test(S("abcdefghijklmnopqrst"), 1, 9, S("1234567890"), S("a1234567890klmnopqrst"));
293     test(S("abcdefghijklmnopqrst"), 1, 9, S("12345678901234567890"), S("a12345678901234567890klmnopqrst"));
294     test(S("abcdefghijklmnopqrst"), 1, 18, S(""), S("at"));
295     test(S("abcdefghijklmnopqrst"), 1, 18, S("12345"), S("a12345t"));
296     test(S("abcdefghijklmnopqrst"), 1, 18, S("1234567890"), S("a1234567890t"));
297     test(S("abcdefghijklmnopqrst"), 1, 18, S("12345678901234567890"), S("a12345678901234567890t"));
298     test(S("abcdefghijklmnopqrst"), 1, 19, S(""), S("a"));
299     test(S("abcdefghijklmnopqrst"), 1, 19, S("12345"), S("a12345"));
300     test(S("abcdefghijklmnopqrst"), 1, 19, S("1234567890"), S("a1234567890"));
301     test(S("abcdefghijklmnopqrst"), 1, 19, S("12345678901234567890"), S("a12345678901234567890"));
302     test(S("abcdefghijklmnopqrst"), 1, 20, S(""), S("a"));
303     test(S("abcdefghijklmnopqrst"), 1, 20, S("12345"), S("a12345"));
304     test(S("abcdefghijklmnopqrst"), 1, 20, S("1234567890"), S("a1234567890"));
305     test(S("abcdefghijklmnopqrst"), 1, 20, S("12345678901234567890"), S("a12345678901234567890"));
306     test(S("abcdefghijklmnopqrst"), 10, 0, S(""), S("abcdefghijklmnopqrst"));
307     test(S("abcdefghijklmnopqrst"), 10, 0, S("12345"), S("abcdefghij12345klmnopqrst"));
308     test(S("abcdefghijklmnopqrst"), 10, 0, S("1234567890"), S("abcdefghij1234567890klmnopqrst"));
309     test(S("abcdefghijklmnopqrst"), 10, 0, S("12345678901234567890"), S("abcdefghij12345678901234567890klmnopqrst"));
310     test(S("abcdefghijklmnopqrst"), 10, 1, S(""), S("abcdefghijlmnopqrst"));
311     test(S("abcdefghijklmnopqrst"), 10, 1, S("12345"), S("abcdefghij12345lmnopqrst"));
312     test(S("abcdefghijklmnopqrst"), 10, 1, S("1234567890"), S("abcdefghij1234567890lmnopqrst"));
313     test(S("abcdefghijklmnopqrst"), 10, 1, S("12345678901234567890"), S("abcdefghij12345678901234567890lmnopqrst"));
314     test(S("abcdefghijklmnopqrst"), 10, 5, S(""), S("abcdefghijpqrst"));
315     test(S("abcdefghijklmnopqrst"), 10, 5, S("12345"), S("abcdefghij12345pqrst"));
316     test(S("abcdefghijklmnopqrst"), 10, 5, S("1234567890"), S("abcdefghij1234567890pqrst"));
317     test(S("abcdefghijklmnopqrst"), 10, 5, S("12345678901234567890"), S("abcdefghij12345678901234567890pqrst"));
318     test(S("abcdefghijklmnopqrst"), 10, 9, S(""), S("abcdefghijt"));
319     test(S("abcdefghijklmnopqrst"), 10, 9, S("12345"), S("abcdefghij12345t"));
320     test(S("abcdefghijklmnopqrst"), 10, 9, S("1234567890"), S("abcdefghij1234567890t"));
321     test(S("abcdefghijklmnopqrst"), 10, 9, S("12345678901234567890"), S("abcdefghij12345678901234567890t"));
322     test(S("abcdefghijklmnopqrst"), 10, 10, S(""), S("abcdefghij"));
323     test(S("abcdefghijklmnopqrst"), 10, 10, S("12345"), S("abcdefghij12345"));
324     test(S("abcdefghijklmnopqrst"), 10, 10, S("1234567890"), S("abcdefghij1234567890"));
325     test(S("abcdefghijklmnopqrst"), 10, 10, S("12345678901234567890"), S("abcdefghij12345678901234567890"));
326     test(S("abcdefghijklmnopqrst"), 10, 11, S(""), S("abcdefghij"));
327     test(S("abcdefghijklmnopqrst"), 10, 11, S("12345"), S("abcdefghij12345"));
328     test(S("abcdefghijklmnopqrst"), 10, 11, S("1234567890"), S("abcdefghij1234567890"));
329     test(S("abcdefghijklmnopqrst"), 10, 11, S("12345678901234567890"), S("abcdefghij12345678901234567890"));
330     test(S("abcdefghijklmnopqrst"), 19, 0, S(""), S("abcdefghijklmnopqrst"));
331     test(S("abcdefghijklmnopqrst"), 19, 0, S("12345"), S("abcdefghijklmnopqrs12345t"));
332     test(S("abcdefghijklmnopqrst"), 19, 0, S("1234567890"), S("abcdefghijklmnopqrs1234567890t"));
333     test(S("abcdefghijklmnopqrst"), 19, 0, S("12345678901234567890"), S("abcdefghijklmnopqrs12345678901234567890t"));
334     test(S("abcdefghijklmnopqrst"), 19, 1, S(""), S("abcdefghijklmnopqrs"));
335     test(S("abcdefghijklmnopqrst"), 19, 1, S("12345"), S("abcdefghijklmnopqrs12345"));
336     test(S("abcdefghijklmnopqrst"), 19, 1, S("1234567890"), S("abcdefghijklmnopqrs1234567890"));
337     test(S("abcdefghijklmnopqrst"), 19, 1, S("12345678901234567890"), S("abcdefghijklmnopqrs12345678901234567890"));
338     test(S("abcdefghijklmnopqrst"), 19, 2, S(""), S("abcdefghijklmnopqrs"));
339     test(S("abcdefghijklmnopqrst"), 19, 2, S("12345"), S("abcdefghijklmnopqrs12345"));
340     test(S("abcdefghijklmnopqrst"), 19, 2, S("1234567890"), S("abcdefghijklmnopqrs1234567890"));
341     test(S("abcdefghijklmnopqrst"), 19, 2, S("12345678901234567890"), S("abcdefghijklmnopqrs12345678901234567890"));
342     test(S("abcdefghijklmnopqrst"), 20, 0, S(""), S("abcdefghijklmnopqrst"));
343     test(S("abcdefghijklmnopqrst"), 20, 0, S("12345"), S("abcdefghijklmnopqrst12345"));
344     test(S("abcdefghijklmnopqrst"), 20, 0, S("1234567890"), S("abcdefghijklmnopqrst1234567890"));
345     test(S("abcdefghijklmnopqrst"), 20, 0, S("12345678901234567890"), S("abcdefghijklmnopqrst12345678901234567890"));
346     test(S("abcdefghijklmnopqrst"), 20, 1, S(""), S("abcdefghijklmnopqrst"));
347     test(S("abcdefghijklmnopqrst"), 20, 1, S("12345"), S("abcdefghijklmnopqrst12345"));
348     test(S("abcdefghijklmnopqrst"), 20, 1, S("1234567890"), S("abcdefghijklmnopqrst1234567890"));
349     test(S("abcdefghijklmnopqrst"), 20, 1, S("12345678901234567890"), S("abcdefghijklmnopqrst12345678901234567890"));
350     test(S("abcdefghijklmnopqrst"), 21, 0, S(""), S("can't happen"));
351     test(S("abcdefghijklmnopqrst"), 21, 0, S("12345"), S("can't happen"));
352     test(S("abcdefghijklmnopqrst"), 21, 0, S("1234567890"), S("can't happen"));
353     test(S("abcdefghijklmnopqrst"), 21, 0, S("12345678901234567890"), S("can't happen"));
354 }
355 
main()356 int main()
357 {
358     {
359     typedef std::string S;
360     test0<S>();
361     test1<S>();
362     test2<S>();
363     }
364 #if __cplusplus >= 201103L
365     {
366     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
367     test0<S>();
368     test1<S>();
369     test2<S>();
370     }
371 #endif
372 }
373