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 // <istream> 11 12 // template <class charT, class traits = char_traits<charT> > 13 // class basic_istream; 14 15 // basic_istream(basic_istream&& rhs); 16 17 #include <istream> 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_istream 31 : public std::basic_istream<CharT> 32 { 33 typedef std::basic_istream<CharT> base; 34 test_istream(testbuf<CharT>* sb) : base(sb) {} 35 36 test_istream(test_istream&& s) 37 : base(std::move(s)) {} 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> sb; 47 test_istream<char> is1(&sb); 48 test_istream<char> is(std::move(is1)); 49 assert(is1.rdbuf() == &sb); 50 assert(is1.gcount() == 0); 51 assert(is.gcount() == 0); 52 assert(is.rdbuf() == 0); 53 assert(is.tie() == 0); 54 assert(is.fill() == ' '); 55 assert(is.rdstate() == is.goodbit); 56 assert(is.exceptions() == is.goodbit); 57 assert(is.flags() == (is.skipws | is.dec)); 58 assert(is.precision() == 6); 59 assert(is.getloc().name() == "C"); 60 } 61 { 62 testbuf<wchar_t> sb; 63 test_istream<wchar_t> is1(&sb); 64 test_istream<wchar_t> is(std::move(is1)); 65 assert(is1.gcount() == 0); 66 assert(is.gcount() == 0); 67 assert(is1.rdbuf() == &sb); 68 assert(is.rdbuf() == 0); 69 assert(is.tie() == 0); 70 assert(is.fill() == L' '); 71 assert(is.rdstate() == is.goodbit); 72 assert(is.exceptions() == is.goodbit); 73 assert(is.flags() == (is.skipws | is.dec)); 74 assert(is.precision() == 6); 75 assert(is.getloc().name() == "C"); 76 } 77 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 78 } 79
