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