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 // <iterator> 11 12 // template<class charT, class traits = char_traits<charT> > 13 // class istreambuf_iterator 14 // : public iterator<input_iterator_tag, charT, 15 // typename traits::off_type, unspecified, 16 // charT> 17 // { 18 // public: 19 // typedef charT char_type; 20 // typedef traits traits_type; 21 // typedef typename traits::int_type int_type; 22 // typedef basic_streambuf<charT,traits> streambuf_type; 23 // typedef basic_istream<charT,traits> istream_type; 24 // ... 25 26 #include <iterator> 27 #include <string> 28 #include <type_traits> 29 30 int main() 31 { 32 typedef std::istreambuf_iterator<char> I1; 33 static_assert((std::is_convertible<I1, 34 std::iterator<std::input_iterator_tag, char, std::char_traits<char>::off_type, 35 char*, char> >::value), ""); 36 static_assert((std::is_same<I1::char_type, char>::value), ""); 37 static_assert((std::is_same<I1::traits_type, std::char_traits<char> >::value), ""); 38 static_assert((std::is_same<I1::int_type, I1::traits_type::int_type>::value), ""); 39 static_assert((std::is_same<I1::streambuf_type, std::streambuf>::value), ""); 40 static_assert((std::is_same<I1::istream_type, std::istream>::value), ""); 41 42 typedef std::istreambuf_iterator<wchar_t> I2; 43 static_assert((std::is_convertible<I2, 44 std::iterator<std::input_iterator_tag, wchar_t, std::char_traits<wchar_t>::off_type, 45 wchar_t*, wchar_t> >::value), ""); 46 static_assert((std::is_same<I2::char_type, wchar_t>::value), ""); 47 static_assert((std::is_same<I2::traits_type, std::char_traits<wchar_t> >::value), ""); 48 static_assert((std::is_same<I2::int_type, I2::traits_type::int_type>::value), ""); 49 static_assert((std::is_same<I2::streambuf_type, std::wstreambuf>::value), ""); 50 static_assert((std::is_same<I2::istream_type, std::wistream>::value), ""); 51 } 52
