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 // UNSUPPORTED: c++98, c++03
11
12 // <string>
13
14 // basic_string<charT,traits,Allocator>&
15 // operator=(basic_string<charT,traits,Allocator>&& str);
16
17 #include <string>
18 #include <cassert>
19
20 #include "test_macros.h"
21 #include "test_allocator.h"
22 #include "min_allocator.h"
23
24 template <class S>
25 void
test(S s1,S s2)26 test(S s1, S s2)
27 {
28 S s0 = s2;
29 s1 = std::move(s2);
30 LIBCPP_ASSERT(s1.__invariants());
31 LIBCPP_ASSERT(s2.__invariants());
32 assert(s1 == s0);
33 assert(s1.capacity() >= s1.size());
34 }
35
main()36 int main()
37 {
38 {
39 typedef std::string S;
40 test(S(), S());
41 test(S("1"), S());
42 test(S(), S("1"));
43 test(S("1"), S("2"));
44 test(S("1"), S("2"));
45
46 test(S(),
47 S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
48 test(S("123456789"),
49 S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
50 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"),
51 S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
52 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"
53 "1234567890123456789012345678901234567890123456789012345678901234567890"),
54 S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
55 }
56 {
57 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
58 test(S(), S());
59 test(S("1"), S());
60 test(S(), S("1"));
61 test(S("1"), S("2"));
62 test(S("1"), S("2"));
63
64 test(S(),
65 S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
66 test(S("123456789"),
67 S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
68 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"),
69 S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
70 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"
71 "1234567890123456789012345678901234567890123456789012345678901234567890"),
72 S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"));
73 }
74 }
75