52 lines
2.2 KiB
C++
52 lines
2.2 KiB
C++
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <iterator>
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// template<class charT, class traits = char_traits<charT> >
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// class istreambuf_iterator
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// : public iterator<input_iterator_tag, charT,
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// typename traits::off_type, unspecified,
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// charT>
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// {
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// public:
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// typedef charT char_type;
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// typedef traits traits_type;
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// typedef typename traits::int_type int_type;
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// typedef basic_streambuf<charT,traits> streambuf_type;
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// typedef basic_istream<charT,traits> istream_type;
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// ...
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#include <iterator>
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#include <string>
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#include <type_traits>
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int main()
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{
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typedef std::istreambuf_iterator<char> I1;
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static_assert((std::is_convertible<I1,
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std::iterator<std::input_iterator_tag, char, std::char_traits<char>::off_type,
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char*, char> >::value), "");
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static_assert((std::is_same<I1::char_type, char>::value), "");
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static_assert((std::is_same<I1::traits_type, std::char_traits<char> >::value), "");
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static_assert((std::is_same<I1::int_type, I1::traits_type::int_type>::value), "");
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static_assert((std::is_same<I1::streambuf_type, std::streambuf>::value), "");
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static_assert((std::is_same<I1::istream_type, std::istream>::value), "");
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typedef std::istreambuf_iterator<wchar_t> I2;
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static_assert((std::is_convertible<I2,
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std::iterator<std::input_iterator_tag, wchar_t, std::char_traits<wchar_t>::off_type,
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wchar_t*, wchar_t> >::value), "");
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static_assert((std::is_same<I2::char_type, wchar_t>::value), "");
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static_assert((std::is_same<I2::traits_type, std::char_traits<wchar_t> >::value), "");
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static_assert((std::is_same<I2::int_type, I2::traits_type::int_type>::value), "");
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static_assert((std::is_same<I2::streambuf_type, std::wstreambuf>::value), "");
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static_assert((std::is_same<I2::istream_type, std::wistream>::value), "");
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}
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