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:
ostreambuf_iterator(streambuf_type * __buf)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
failed()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>
ostreambuf_iterator(basic_ostream<_CharT,_Traits> & __o)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
iterator_category(const ostreambuf_iterator<_CharT,_Traits> &)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
103