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 // <ostream> 11 12 // template <class charT, class traits = char_traits<charT> > 13 // class basic_ostream; 14 15 // basic_ostream& operator=(basic_ostream&& rhs); 16 17 #include <ostream> 18 #include <cassert> 19 20 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 21 22 template <class CharT> 23 struct testbuf 24 : public std::basic_streambuf<CharT> 25 { 26 testbuf() {} 27 }; 28 29 template <class CharT> 30 struct test_ostream 31 : public std::basic_ostream<CharT> 32 { 33 typedef std::basic_ostream<CharT> base; 34 test_ostream(testbuf<CharT>* sb) : base(sb) {} 35 36 test_ostream& operator=(test_ostream&& s) 37 {base::operator=(std::move(s)); return *this;} 38 }; 39 40 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 41 42 int main() 43 { 44 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 45 { 46 testbuf<char> sb1; 47 testbuf<char> sb2; 48 test_ostream<char> os1(&sb1); 49 test_ostream<char> os2(&sb2); 50 os2 = (std::move(os1)); 51 assert(os1.rdbuf() == &sb1); 52 assert(os1.tie() == 0); 53 assert(os1.fill() == ' '); 54 assert(os1.rdstate() == os1.goodbit); 55 assert(os1.exceptions() == os1.goodbit); 56 assert(os1.flags() == (os1.skipws | os1.dec)); 57 assert(os1.precision() == 6); 58 assert(os1.getloc().name() == "C"); 59 assert(os2.rdbuf() == &sb2); 60 assert(os2.tie() == 0); 61 assert(os2.fill() == ' '); 62 assert(os2.rdstate() == os2.goodbit); 63 assert(os2.exceptions() == os2.goodbit); 64 assert(os2.flags() == (os2.skipws | os2.dec)); 65 assert(os2.precision() == 6); 66 assert(os2.getloc().name() == "C"); 67 } 68 { 69 testbuf<wchar_t> sb1; 70 testbuf<wchar_t> sb2; 71 test_ostream<wchar_t> os1(&sb1); 72 test_ostream<wchar_t> os2(&sb2); 73 os2 = (std::move(os1)); 74 assert(os1.rdbuf() == &sb1); 75 assert(os1.tie() == 0); 76 assert(os1.fill() == ' '); 77 assert(os1.rdstate() == os1.goodbit); 78 assert(os1.exceptions() == os1.goodbit); 79 assert(os1.flags() == (os1.skipws | os1.dec)); 80 assert(os1.precision() == 6); 81 assert(os1.getloc().name() == "C"); 82 assert(os2.rdbuf() == &sb2); 83 assert(os2.tie() == 0); 84 assert(os2.fill() == ' '); 85 assert(os2.rdstate() == os2.goodbit); 86 assert(os2.exceptions() == os2.goodbit); 87 assert(os2.flags() == (os2.skipws | os2.dec)); 88 assert(os2.precision() == 6); 89 assert(os2.getloc().name() == "C"); 90 } 91 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 92 } 93
