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 // template<class charT, class traits, class Allocator>
13 //   basic_string<charT,traits,Allocator>
14 //   operator+(const basic_string<charT,traits,Allocator>& lhs, charT rhs);
15 
16 // template<class charT, class traits, class Allocator>
17 //   basic_string<charT,traits,Allocator>&&
18 //   operator+(basic_string<charT,traits,Allocator>&& lhs, charT rhs);
19 
20 #include <string>
21 #include <utility>
22 #include <cassert>
23 
24 #include "min_allocator.h"
25 
26 template <class S>
27 void
28 test0(const S& lhs, typename S::value_type rhs, const S& x)
29 {
30     assert(lhs + rhs == x);
31 }
32 
33 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
34 
35 template <class S>
36 void
37 test1(S&& lhs, typename S::value_type rhs, const S& x)
38 {
39     assert(move(lhs) + rhs == x);
40 }
41 
42 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
43 
44 int main()
45 {
46     {
47     typedef std::string S;
48     test0(S(""), '1', S("1"));
49     test0(S("abcde"), '1', S("abcde1"));
50     test0(S("abcdefghij"), '1', S("abcdefghij1"));
51     test0(S("abcdefghijklmnopqrst"), '1', S("abcdefghijklmnopqrst1"));
52 
53 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
54 
55     test1(S(""), '1', S("1"));
56     test1(S("abcde"), '1', S("abcde1"));
57     test1(S("abcdefghij"), '1', S("abcdefghij1"));
58     test1(S("abcdefghijklmnopqrst"), '1', S("abcdefghijklmnopqrst1"));
59 
60 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
61     }
62 #if __cplusplus >= 201103L
63     {
64     typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
65     test0(S(""), '1', S("1"));
66     test0(S("abcde"), '1', S("abcde1"));
67     test0(S("abcdefghij"), '1', S("abcdefghij1"));
68     test0(S("abcdefghijklmnopqrst"), '1', S("abcdefghijklmnopqrst1"));
69 
70 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
71 
72     test1(S(""), '1', S("1"));
73     test1(S("abcde"), '1', S("abcde1"));
74     test1(S("abcdefghij"), '1', S("abcdefghij1"));
75     test1(S("abcdefghijklmnopqrst"), '1', S("abcdefghijklmnopqrst1"));
76 
77 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
78     }
79 #endif
80 }
81