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 <utility>
22 #include <cassert>
23
24 #include "test_macros.h"
25 #include "min_allocator.h"
26
27 template <class S>
test0(typename S::value_type lhs,const S & rhs,const S & x)28 void test0(typename S::value_type lhs, const S& rhs, const S& x) {
29 assert(lhs + rhs == x);
30 }
31
32 #if TEST_STD_VER >= 11
33 template <class S>
test1(typename S::value_type lhs,S && rhs,const S & x)34 void test1(typename S::value_type lhs, S&& rhs, const S& x) {
35 assert(lhs + move(rhs) == x);
36 }
37 #endif
38
main()39 int main() {
40 {
41 typedef std::string S;
42 test0('a', S(""), S("a"));
43 test0('a', S("12345"), S("a12345"));
44 test0('a', S("1234567890"), S("a1234567890"));
45 test0('a', S("12345678901234567890"), S("a12345678901234567890"));
46 }
47 #if TEST_STD_VER >= 11
48 {
49 typedef std::string S;
50 test1('a', S(""), S("a"));
51 test1('a', S("12345"), S("a12345"));
52 test1('a', S("1234567890"), S("a1234567890"));
53 test1('a', S("12345678901234567890"), S("a12345678901234567890"));
54 }
55 {
56 typedef std::basic_string<char, std::char_traits<char>,
57 min_allocator<char> >
58 S;
59 test0('a', S(""), S("a"));
60 test0('a', S("12345"), S("a12345"));
61 test0('a', S("1234567890"), S("a1234567890"));
62 test0('a', S("12345678901234567890"), S("a12345678901234567890"));
63
64 test1('a', S(""), S("a"));
65 test1('a', S("12345"), S("a12345"));
66 test1('a', S("1234567890"), S("a1234567890"));
67 test1('a', S("12345678901234567890"), S("a12345678901234567890"));
68 }
69 #endif
70 }
71