lib/3rdparty/stlport/stlport/stl/_ostreambuf_iterator.h

   1 /*
   2  * Copyright (c) 1999
   3  * Silicon Graphics Computer Systems, Inc.
   4  *
   5  * Copyright (c) 1999
   6  * Boris Fomitchev
   7  *
   8  * This material is provided "as is", with absolutely no warranty expressed
   9  * or implied. Any use is at your own risk.
  10  *
  11  * Permission to use or copy this software for any purpose is hereby granted
  12  * without fee, provided the above notices are retained on all copies.
  13  * Permission to modify the code and to distribute modified code is granted,
  14  * provided the above notices are retained, and a notice that the code was
  15  * modified is included with the above copyright notice.
  16  *
  17  */
  18 // WARNING: This is an internal header file, included by other C++
  19 // standard library headers.  You should not attempt to use this header
  20 // file directly.
  21
  22
  23 #ifndef _STLP_INTERNAL_OSTREAMBUF_ITERATOR_H
  24 #define _STLP_INTERNAL_OSTREAMBUF_ITERATOR_H
  25
  26 #ifndef _STLP_INTERNAL_STREAMBUF
  27 # include <stl/_streambuf.h>
  28 #endif
  29
  30 _STLP_BEGIN_NAMESPACE
  31
  32 _STLP_MOVE_TO_PRIV_NAMESPACE
  33
  34 template<class _CharT, class _Traits>
  35 extern basic_streambuf<_CharT, _Traits>* _STLP_CALL __get_ostreambuf(basic_ostream<_CharT, _Traits>&);
  36
  37 _STLP_MOVE_TO_STD_NAMESPACE
  38
  39 // The default template argument is declared in iosfwd
  40 template <class _CharT, class _Traits>
  41 class ostreambuf_iterator :
  42   public iterator<output_iterator_tag, void, void, void, void> {
  43 public:
  44   typedef _CharT                           char_type;
  45   typedef _Traits                          traits_type;
  46   typedef typename _Traits::int_type       int_type;
  47   typedef basic_streambuf<_CharT, _Traits> streambuf_type;
  48   typedef basic_ostream<_CharT, _Traits>   ostream_type;
  49
  50   typedef output_iterator_tag              iterator_category;
  51   typedef void                             value_type;
  52   typedef void                             difference_type;
  53   typedef void                             pointer;
  54   typedef void                             reference;
  55
  56 public:
  57   ostreambuf_iterator(streambuf_type* __buf) _STLP_NOTHROW : _M_buf(__buf), _M_ok(__buf!=0) {}
  58   //  ostreambuf_iterator(ostream_type& __o) _STLP_NOTHROW : _M_buf(__get_ostreambuf(__o)), _M_ok(_M_buf != 0) {}
  59   inline ostreambuf_iterator(ostream_type& __o) _STLP_NOTHROW;
  60
  61   ostreambuf_iterator<_CharT, _Traits>& operator=(char_type __c) {
  62     _M_ok = _M_ok && !traits_type::eq_int_type(_M_buf->sputc(__c),
  63                                                traits_type::eof());
  64     return *this;
  65   }
  66
  67   ostreambuf_iterator<_CharT, _Traits>& operator*()     { return *this; }
  68   ostreambuf_iterator<_CharT, _Traits>& operator++()    { return *this; }
  69   ostreambuf_iterator<_CharT, _Traits>& operator++(int) { return *this; }
  70
  71   bool failed() const { return !_M_ok; }
  72
  73 private:
  74   streambuf_type* _M_buf;
  75   bool _M_ok;
  76 };
  77
  78 template <class _CharT, class _Traits>
  79 inline ostreambuf_iterator<_CharT, _Traits>::ostreambuf_iterator(basic_ostream<_CharT, _Traits>& __o) _STLP_NOTHROW
  80   : _M_buf(_STLP_PRIV __get_ostreambuf(__o)), _M_ok(_M_buf != 0) {}
  81
  82 #if defined (_STLP_USE_TEMPLATE_EXPORT)
  83 _STLP_EXPORT_TEMPLATE_CLASS ostreambuf_iterator<char, char_traits<char> >;
  84 #  if defined (INSTANTIATE_WIDE_STREAMS)
  85 _STLP_EXPORT_TEMPLATE_CLASS ostreambuf_iterator<wchar_t, char_traits<wchar_t> >;
  86 #  endif
  87 #endif /* _STLP_USE_TEMPLATE_EXPORT */
  88
  89 #if defined (_STLP_USE_OLD_HP_ITERATOR_QUERIES)
  90 template <class _CharT, class _Traits>
  91 inline output_iterator_tag _STLP_CALL
  92 iterator_category(const ostreambuf_iterator<_CharT, _Traits>&) { return output_iterator_tag(); }
  93 #endif
  94
  95 _STLP_END_NAMESPACE
  96
  97 #endif /* _STLP_INTERNAL_OSTREAMBUF_ITERATOR_H */
  98
  99 // Local Variables:
 100 // mode:C++
 101 // End:
 102