move_assign.pass.cpp (2699B)
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 // UNSUPPORTED: c++98, c++03 11 12 // <istream> 13 14 // template <class charT, class traits = char_traits<charT> > 15 // class basic_iostream; 16 17 // basic_iostream& operator=(basic_iostream&& rhs); 18 19 #include <istream> 20 #include <cassert> 21 22 23 template <class CharT> 24 struct testbuf 25 : public std::basic_streambuf<CharT> 26 { 27 testbuf() {} 28 }; 29 30 template <class CharT> 31 struct test_iostream 32 : public std::basic_iostream<CharT> 33 { 34 typedef std::basic_iostream<CharT> base; 35 test_iostream(testbuf<CharT>* sb) : base(sb) {} 36 37 test_iostream& operator=(test_iostream&& s) 38 {base::operator=(std::move(s)); return *this;} 39 }; 40 41 42 int main() 43 { 44 { 45 testbuf<char> sb1; 46 testbuf<char> sb2; 47 test_iostream<char> is1(&sb1); 48 test_iostream<char> is2(&sb2); 49 is2 = (std::move(is1)); 50 assert(is1.rdbuf() == &sb1); 51 assert(is1.tie() == 0); 52 assert(is1.fill() == ' '); 53 assert(is1.rdstate() == is1.goodbit); 54 assert(is1.exceptions() == is1.goodbit); 55 assert(is1.flags() == (is1.skipws | is1.dec)); 56 assert(is1.precision() == 6); 57 assert(is1.getloc().name() == "C"); 58 assert(is2.rdbuf() == &sb2); 59 assert(is2.tie() == 0); 60 assert(is2.fill() == ' '); 61 assert(is2.rdstate() == is2.goodbit); 62 assert(is2.exceptions() == is2.goodbit); 63 assert(is2.flags() == (is2.skipws | is2.dec)); 64 assert(is2.precision() == 6); 65 assert(is2.getloc().name() == "C"); 66 } 67 { 68 testbuf<wchar_t> sb1; 69 testbuf<wchar_t> sb2; 70 test_iostream<wchar_t> is1(&sb1); 71 test_iostream<wchar_t> is2(&sb2); 72 is2 = (std::move(is1)); 73 assert(is1.rdbuf() == &sb1); 74 assert(is1.tie() == 0); 75 assert(is1.fill() == ' '); 76 assert(is1.rdstate() == is1.goodbit); 77 assert(is1.exceptions() == is1.goodbit); 78 assert(is1.flags() == (is1.skipws | is1.dec)); 79 assert(is1.precision() == 6); 80 assert(is1.getloc().name() == "C"); 81 assert(is2.rdbuf() == &sb2); 82 assert(is2.tie() == 0); 83 assert(is2.fill() == ' '); 84 assert(is2.rdstate() == is2.goodbit); 85 assert(is2.exceptions() == is2.goodbit); 86 assert(is2.flags() == (is2.skipws | is2.dec)); 87 assert(is2.precision() == 6); 88 assert(is2.getloc().name() == "C"); 89 } 90 }