size_string.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976 
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//   insert(size_type pos1, const basic_string& str);
14
15#include <string>
16#include <stdexcept>
17#include <cassert>
18
19template <class S>
20void
21test(S s, typename S::size_type pos, S str, S expected)
22{
23    typename S::size_type old_size = s.size();
24    S s0 = s;
25    try
26    {
27        s.insert(pos, str);
28        assert(s.__invariants());
29        assert(pos <= old_size);
30        assert(s == expected);
31    }
32    catch (std::out_of_range&)
33    {
34        assert(pos > old_size);
35        assert(s == s0);
36    }
37}
38
39int main()
40{
41    typedef std::string S;
42    test(S(""), 0, S(""), S(""));
43    test(S(""), 0, S("12345"), S("12345"));
44    test(S(""), 0, S("1234567890"), S("1234567890"));
45    test(S(""), 0, S("12345678901234567890"), S("12345678901234567890"));
46    test(S(""), 1, S(""), S("can't happen"));
47    test(S(""), 1, S("12345"), S("can't happen"));
48    test(S(""), 1, S("1234567890"), S("can't happen"));
49    test(S(""), 1, S("12345678901234567890"), S("can't happen"));
50    test(S("abcde"), 0, S(""), S("abcde"));
51    test(S("abcde"), 0, S("12345"), S("12345abcde"));
52    test(S("abcde"), 0, S("1234567890"), S("1234567890abcde"));
53    test(S("abcde"), 0, S("12345678901234567890"), S("12345678901234567890abcde"));
54    test(S("abcde"), 1, S(""), S("abcde"));
55    test(S("abcde"), 1, S("12345"), S("a12345bcde"));
56    test(S("abcde"), 1, S("1234567890"), S("a1234567890bcde"));
57    test(S("abcde"), 1, S("12345678901234567890"), S("a12345678901234567890bcde"));
58    test(S("abcde"), 2, S(""), S("abcde"));
59    test(S("abcde"), 2, S("12345"), S("ab12345cde"));
60    test(S("abcde"), 2, S("1234567890"), S("ab1234567890cde"));
61    test(S("abcde"), 2, S("12345678901234567890"), S("ab12345678901234567890cde"));
62    test(S("abcde"), 4, S(""), S("abcde"));
63    test(S("abcde"), 4, S("12345"), S("abcd12345e"));
64    test(S("abcde"), 4, S("1234567890"), S("abcd1234567890e"));
65    test(S("abcde"), 4, S("12345678901234567890"), S("abcd12345678901234567890e"));
66    test(S("abcde"), 5, S(""), S("abcde"));
67    test(S("abcde"), 5, S("12345"), S("abcde12345"));
68    test(S("abcde"), 5, S("1234567890"), S("abcde1234567890"));
69    test(S("abcde"), 5, S("12345678901234567890"), S("abcde12345678901234567890"));
70    test(S("abcde"), 6, S(""), S("can't happen"));
71    test(S("abcde"), 6, S("12345"), S("can't happen"));
72    test(S("abcde"), 6, S("1234567890"), S("can't happen"));
73    test(S("abcde"), 6, S("12345678901234567890"), S("can't happen"));
74    test(S("abcdefghij"), 0, S(""), S("abcdefghij"));
75    test(S("abcdefghij"), 0, S("12345"), S("12345abcdefghij"));
76    test(S("abcdefghij"), 0, S("1234567890"), S("1234567890abcdefghij"));
77    test(S("abcdefghij"), 0, S("12345678901234567890"), S("12345678901234567890abcdefghij"));
78    test(S("abcdefghij"), 1, S(""), S("abcdefghij"));
79    test(S("abcdefghij"), 1, S("12345"), S("a12345bcdefghij"));
80    test(S("abcdefghij"), 1, S("1234567890"), S("a1234567890bcdefghij"));
81    test(S("abcdefghij"), 1, S("12345678901234567890"), S("a12345678901234567890bcdefghij"));
82    test(S("abcdefghij"), 5, S(""), S("abcdefghij"));
83    test(S("abcdefghij"), 5, S("12345"), S("abcde12345fghij"));
84    test(S("abcdefghij"), 5, S("1234567890"), S("abcde1234567890fghij"));
85    test(S("abcdefghij"), 5, S("12345678901234567890"), S("abcde12345678901234567890fghij"));
86    test(S("abcdefghij"), 9, S(""), S("abcdefghij"));
87    test(S("abcdefghij"), 9, S("12345"), S("abcdefghi12345j"));
88    test(S("abcdefghij"), 9, S("1234567890"), S("abcdefghi1234567890j"));
89    test(S("abcdefghij"), 9, S("12345678901234567890"), S("abcdefghi12345678901234567890j"));
90    test(S("abcdefghij"), 10, S(""), S("abcdefghij"));
91    test(S("abcdefghij"), 10, S("12345"), S("abcdefghij12345"));
92    test(S("abcdefghij"), 10, S("1234567890"), S("abcdefghij1234567890"));
93    test(S("abcdefghij"), 10, S("12345678901234567890"), S("abcdefghij12345678901234567890"));
94    test(S("abcdefghij"), 11, S(""), S("can't happen"));
95    test(S("abcdefghij"), 11, S("12345"), S("can't happen"));
96    test(S("abcdefghij"), 11, S("1234567890"), S("can't happen"));
97    test(S("abcdefghij"), 11, S("12345678901234567890"), S("can't happen"));
98    test(S("abcdefghijklmnopqrst"), 0, S(""), S("abcdefghijklmnopqrst"));
99    test(S("abcdefghijklmnopqrst"), 0, S("12345"), S("12345abcdefghijklmnopqrst"));
100    test(S("abcdefghijklmnopqrst"), 0, S("1234567890"), S("1234567890abcdefghijklmnopqrst"));
101    test(S("abcdefghijklmnopqrst"), 0, S("12345678901234567890"), S("12345678901234567890abcdefghijklmnopqrst"));
102    test(S("abcdefghijklmnopqrst"), 1, S(""), S("abcdefghijklmnopqrst"));
103    test(S("abcdefghijklmnopqrst"), 1, S("12345"), S("a12345bcdefghijklmnopqrst"));
104    test(S("abcdefghijklmnopqrst"), 1, S("1234567890"), S("a1234567890bcdefghijklmnopqrst"));
105    test(S("abcdefghijklmnopqrst"), 1, S("12345678901234567890"), S("a12345678901234567890bcdefghijklmnopqrst"));
106    test(S("abcdefghijklmnopqrst"), 10, S(""), S("abcdefghijklmnopqrst"));
107    test(S("abcdefghijklmnopqrst"), 10, S("12345"), S("abcdefghij12345klmnopqrst"));
108    test(S("abcdefghijklmnopqrst"), 10, S("1234567890"), S("abcdefghij1234567890klmnopqrst"));
109    test(S("abcdefghijklmnopqrst"), 10, S("12345678901234567890"), S("abcdefghij12345678901234567890klmnopqrst"));
110    test(S("abcdefghijklmnopqrst"), 19, S(""), S("abcdefghijklmnopqrst"));
111    test(S("abcdefghijklmnopqrst"), 19, S("12345"), S("abcdefghijklmnopqrs12345t"));
112    test(S("abcdefghijklmnopqrst"), 19, S("1234567890"), S("abcdefghijklmnopqrs1234567890t"));
113    test(S("abcdefghijklmnopqrst"), 19, S("12345678901234567890"), S("abcdefghijklmnopqrs12345678901234567890t"));
114    test(S("abcdefghijklmnopqrst"), 20, S(""), S("abcdefghijklmnopqrst"));
115    test(S("abcdefghijklmnopqrst"), 20, S("12345"), S("abcdefghijklmnopqrst12345"));
116    test(S("abcdefghijklmnopqrst"), 20, S("1234567890"), S("abcdefghijklmnopqrst1234567890"));
117    test(S("abcdefghijklmnopqrst"), 20, S("12345678901234567890"), S("abcdefghijklmnopqrst12345678901234567890"));
118    test(S("abcdefghijklmnopqrst"), 21, S(""), S("can't happen"));
119    test(S("abcdefghijklmnopqrst"), 21, S("12345"), S("can't happen"));
120    test(S("abcdefghijklmnopqrst"), 21, S("1234567890"), S("can't happen"));
121    test(S("abcdefghijklmnopqrst"), 21, S("12345678901234567890"), S("can't happen"));
122}
123