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 // <sstream> 11 12 // template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > 13 // class basic_istringstream 14 15 // basic_istringstream& operator=(basic_istringstream&& rhs); 16 17 #include <sstream> 18 #include <cassert> 19 20 int main() 21 { 22 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 23 { 24 std::istringstream ss0(" 123 456"); 25 std::istringstream ss; 26 ss = std::move(ss0); 27 assert(ss.rdbuf() != 0); 28 assert(ss.good()); 29 assert(ss.str() == " 123 456"); 30 int i = 0; 31 ss >> i; 32 assert(i == 123); 33 ss >> i; 34 assert(i == 456); 35 } 36 { 37 std::istringstream s1("Aaaaa Bbbbb Cccccccccc Dddddddddddddddddd"); 38 std::string s; 39 s1 >> s; 40 41 std::istringstream s2 = std::move(s1); 42 s2 >> s; 43 assert(s == "Bbbbb"); 44 45 std::istringstream s3; 46 s3 = std::move(s2); 47 s3 >> s; 48 assert(s == "Cccccccccc"); 49 50 s1 = std::move(s3); 51 s1 >> s; 52 assert(s == "Dddddddddddddddddd"); 53 } 54 { 55 std::wistringstream ss0(L" 123 456"); 56 std::wistringstream ss; 57 ss = std::move(ss0); 58 assert(ss.rdbuf() != 0); 59 assert(ss.good()); 60 assert(ss.str() == L" 123 456"); 61 int i = 0; 62 ss >> i; 63 assert(i == 123); 64 ss >> i; 65 assert(i == 456); 66 } 67 { 68 std::wistringstream s1(L"Aaaaa Bbbbb Cccccccccc Dddddddddddddddddd"); 69 std::wstring s; 70 s1 >> s; 71 72 std::wistringstream s2 = std::move(s1); 73 s2 >> s; 74 assert(s == L"Bbbbb"); 75 76 std::wistringstream s3; 77 s3 = std::move(s2); 78 s3 >> s; 79 assert(s == L"Cccccccccc"); 80 81 s1 = std::move(s3); 82 s1 >> s; 83 assert(s == L"Dddddddddddddddddd"); 84 } 85 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 86 } 87
