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 25template <class S> 26void 27test0(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 34template <class S> 35void 36test1(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 43int 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