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>& append(const charT* s);
13 
14 #include <string>
15 #include <stdexcept>
16 #include <cassert>
17 
18 #include "../../min_allocator.h"
19 
20 template <class S>
21 void
22 test(S s, const typename S::value_type* str, S expected)
23 {
24     s.append(str);
25     assert(s.__invariants());
26     assert(s == expected);
27 }
28 
29 int main()
30 {
31     {
32     typedef std::string S;
33     test(S(), "", S());
34     test(S(), "12345", S("12345"));
35     test(S(), "12345678901234567890", S("12345678901234567890"));
36 
37     test(S("12345"), "", S("12345"));
38     test(S("12345"), "12345", S("1234512345"));
39     test(S("12345"), "1234567890", S("123451234567890"));
40 
41     test(S("12345678901234567890"), "", S("12345678901234567890"));
42     test(S("12345678901234567890"), "12345", S("1234567890123456789012345"));
43     test(S("12345678901234567890"), "12345678901234567890",
44          S("1234567890123456789012345678901234567890"));
45     }
46 #if __cplusplus >= 201103L
47     {
48     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
49     test(S(), "", S());
50     test(S(), "12345", S("12345"));
51     test(S(), "12345678901234567890", S("12345678901234567890"));
52 
53     test(S("12345"), "", S("12345"));
54     test(S("12345"), "12345", S("1234512345"));
55     test(S("12345"), "1234567890", S("123451234567890"));
56 
57     test(S("12345678901234567890"), "", S("12345678901234567890"));
58     test(S("12345678901234567890"), "12345", S("1234567890123456789012345"));
59     test(S("12345678901234567890"), "12345678901234567890",
60          S("1234567890123456789012345678901234567890"));
61     }
62 #endif
63 }
64