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(basic_string<charT,traits,Allocator>&& str);
13 
14 #include <string>
15 #include <cassert>
16 
17 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
18 
19 #include "../test_allocator.h"
20 #include "../min_allocator.h"
21 
22 template <class S>
23 void
24 test(S s0)
25 {
26     S s1 = s0;
27     S s2 = std::move(s0);
28     assert(s2.__invariants());
29     assert(s0.__invariants());
30     assert(s2 == s1);
31     assert(s2.capacity() >= s2.size());
32     assert(s2.get_allocator() == s1.get_allocator());
33 }
34 
35 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
36 
37 int main()
38 {
39 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
40     {
41     typedef test_allocator<char> A;
42     typedef std::basic_string<char, std::char_traits<char>, A> S;
43     test(S(A(3)));
44     test(S("1", A(5)));
45     test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)));
46     }
47 #if __cplusplus >= 201103L
48     {
49     typedef min_allocator<char> A;
50     typedef std::basic_string<char, std::char_traits<char>, A> S;
51     test(S(A{}));
52     test(S("1", A()));
53     test(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()));
54     }
55 #endif
56 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
57 }
58