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