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 //   operator=(const basic_string<charT,traits,Allocator>& str);
14 
15 #include <string>
16 #include <cassert>
17 
18 #include "../min_allocator.h"
19 
20 template <class S>
21 void
22 test(S s1, const S& s2)
23 {
24     s1 = s2;
25     assert(s1.__invariants());
26     assert(s1 == s2);
27     assert(s1.capacity() >= s1.size());
28 }
29 
30 int main()
31 {
32     {
33     typedef std::string S;
34     test(S(), S());
35     test(S("1"), S());
36     test(S(), S("1"));
37     test(S("1"), S("2"));
38     test(S("1"), S("2"));
39 
40     test(S(),
41          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
42     test(S("123456789"),
43          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
44     test(S("1234567890123456789012345678901234567890123456789012345678901234567890"),
45          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
46     test(S("1234567890123456789012345678901234567890123456789012345678901234567890"
47            "1234567890123456789012345678901234567890123456789012345678901234567890"),
48          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
49     }
50 #if __cplusplus >= 201103L
51     {
52     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
53     test(S(), S());
54     test(S("1"), S());
55     test(S(), S("1"));
56     test(S("1"), S("2"));
57     test(S("1"), S("2"));
58 
59     test(S(),
60          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
61     test(S("123456789"),
62          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
63     test(S("1234567890123456789012345678901234567890123456789012345678901234567890"),
64          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
65     test(S("1234567890123456789012345678901234567890123456789012345678901234567890"
66            "1234567890123456789012345678901234567890123456789012345678901234567890"),
67          S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
68     }
69 #endif
70 }
71