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      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 ostreambuf_iterator
     14 //   : public iterator<output_iterator_tag, void, void, void, void>
     15 // {
     16 // public:
     17 //   typedef charT                          char_type;
     18 //   typedef traits                         traits_type;
     19 //   typedef basic_streambuf<charT, traits> streambuf_type;
     20 //   typedef basic_ostream<charT, traits>   ostream_type;
     21 //   ...
     22 
     23 #include <iterator>
     24 #include <string>
     25 #include <type_traits>
     26 
     27 #include "test_macros.h"
     28 
     29 int main()
     30 {
     31     typedef std::ostreambuf_iterator<char> I1;
     32 #if TEST_STD_VER <= 14
     33     static_assert((std::is_convertible<I1,
     34         std::iterator<std::output_iterator_tag, void, void, void, void> >::value), "");
     35 #else
     36     static_assert((std::is_same<I1::iterator_category, std::output_iterator_tag>::value), "");
     37     static_assert((std::is_same<I1::value_type, void>::value), "");
     38     static_assert((std::is_same<I1::difference_type, void>::value), "");
     39     static_assert((std::is_same<I1::pointer, void>::value), "");
     40     static_assert((std::is_same<I1::reference, void>::value), "");
     41 #endif
     42     static_assert((std::is_same<I1::char_type, char>::value), "");
     43     static_assert((std::is_same<I1::traits_type, std::char_traits<char> >::value), "");
     44     static_assert((std::is_same<I1::streambuf_type, std::streambuf>::value), "");
     45     static_assert((std::is_same<I1::ostream_type, std::ostream>::value), "");
     46 
     47     typedef std::ostreambuf_iterator<wchar_t> I2;
     48 #if TEST_STD_VER <= 14
     49     static_assert((std::is_convertible<I2,
     50         std::iterator<std::output_iterator_tag, void, void, void, void> >::value), "");
     51 #else
     52     static_assert((std::is_same<I2::iterator_category, std::output_iterator_tag>::value), "");
     53     static_assert((std::is_same<I2::value_type, void>::value), "");
     54     static_assert((std::is_same<I2::difference_type, void>::value), "");
     55     static_assert((std::is_same<I2::pointer, void>::value), "");
     56     static_assert((std::is_same<I2::reference, void>::value), "");
     57 #endif
     58     static_assert((std::is_same<I2::char_type, wchar_t>::value), "");
     59     static_assert((std::is_same<I2::traits_type, std::char_traits<wchar_t> >::value), "");
     60     static_assert((std::is_same<I2::streambuf_type, std::wstreambuf>::value), "");
     61     static_assert((std::is_same<I2::ostream_type, std::wostream>::value), "");
     62 }
     63