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+(charT lhs, const basic_string<charT,traits,Allocator>& rhs);
15
16 // template<class charT, class traits, class Allocator>
17 // basic_string<charT,traits,Allocator>&&
18 // operator+(charT lhs, basic_string<charT,traits,Allocator>&& rhs);
19
20 #include <string>
21 #include <cassert>
22
23 #include "min_allocator.h"
24
25 template <class S>
26 void
test0(typename S::value_type lhs,const S & rhs,const S & x)27 test0(typename S::value_type lhs, const S& 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(typename S::value_type lhs,S && rhs,const S & x)36 test1(typename S::value_type lhs, S&& rhs, const S& x)
37 {
38 assert(lhs + move(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('a', S(""), S("a"));
48 test0('a', S("12345"), S("a12345"));
49 test0('a', S("1234567890"), S("a1234567890"));
50 test0('a', S("12345678901234567890"), S("a12345678901234567890"));
51
52 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
53
54 test1('a', S(""), S("a"));
55 test1('a', S("12345"), S("a12345"));
56 test1('a', S("1234567890"), S("a1234567890"));
57 test1('a', S("12345678901234567890"), S("a12345678901234567890"));
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('a', S(""), S("a"));
65 test0('a', S("12345"), S("a12345"));
66 test0('a', S("1234567890"), S("a1234567890"));
67 test0('a', S("12345678901234567890"), S("a12345678901234567890"));
68
69 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
70
71 test1('a', S(""), S("a"));
72 test1('a', S("12345"), S("a12345"));
73 test1('a', S("1234567890"), S("a1234567890"));
74 test1('a', S("12345678901234567890"), S("a12345678901234567890"));
75
76 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
77 }
78 #endif
79 }
80