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 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 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 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
