2 * © Portions copyright (c) 2006-2007 Nokia Corporation. All rights reserved.
4 * Silicon Graphics Computer Systems, Inc.
9 * This material is provided "as is", with absolutely no warranty expressed
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19 #ifndef _STLP_INTERNAL_IOS_H
20 #define _STLP_INTERNAL_IOS_H
23 #ifndef _STLP_IOS_BASE_H
24 # include <stl/_ios_base.h>
27 #ifndef _STLP_INTERNAL_CTYPE_H
28 # include <stl/_ctype.h>
30 #ifndef _STLP_INTERNAL_NUMPUNCT_H
31 # include <stl/_numpunct.h>
36 // ----------------------------------------------------------------------
38 // Class basic_ios, a subclass of ios_base. The only important difference
39 // between the two is that basic_ios is a class template, parameterized
40 // by the character type. ios_base exists to factor out all of the
41 // common properties that don't depend on the character type.
43 // The second template parameter, _Traits, defaults to char_traits<_CharT>.
44 // The default is declared in header <iosfwd>, and it isn't declared here
45 // because C++ language rules do not allow it to be declared twice.
47 template <class _CharT, class _Traits>
49 class basic_ios : public ios_base {
51 class basic_ios : public ios_base {
53 friend class ios_base;
54 public: // Synonyms for types.
55 typedef _CharT char_type;
56 typedef typename _Traits::int_type int_type;
57 typedef typename _Traits::pos_type pos_type;
58 typedef typename _Traits::off_type off_type;
59 typedef _Traits traits_type;
61 public: // Constructor, destructor.
62 explicit basic_ios(basic_streambuf<_CharT, _Traits>* __streambuf);
63 virtual ~basic_ios() {}
65 public: // Members from clause 27.4.4.2
66 basic_ostream<_CharT, _Traits>* tie() const {
67 return _M_tied_ostream;
69 basic_ostream<_CharT, _Traits>*
70 tie(basic_ostream<char_type, traits_type>* __new_tied_ostream) {
71 basic_ostream<char_type, traits_type>* __tmp = _M_tied_ostream;
72 _M_tied_ostream = __new_tied_ostream;
76 basic_streambuf<_CharT, _Traits>* rdbuf() const
77 { return _M_streambuf; }
79 basic_streambuf<_CharT, _Traits>*
80 rdbuf(basic_streambuf<char_type, traits_type>*);
82 // Copies __x's state to *this.
83 basic_ios<_CharT, _Traits>& copyfmt(const basic_ios<_CharT, _Traits>& __x);
85 char_type fill() const { return _M_fill; }
86 char_type fill(char_type __fill) {
87 char_type __tmp(_M_fill);
92 public: // Members from 27.4.4.3. These four functions
93 // can almost be defined in ios_base.
95 void clear(iostate __state = goodbit) {
96 _M_clear_nothrow(this->rdbuf() ? __state : iostate(__state|ios_base::badbit));
97 _M_check_exception_mask();
99 void setstate(iostate __state) { this->clear(rdstate() | __state); }
101 iostate exceptions() const { return this->_M_get_exception_mask(); }
102 void exceptions(iostate __mask) {
103 this->_M_set_exception_mask(__mask);
104 this->clear(this->rdstate());
107 public: // Locale-related member functions.
108 locale imbue(const locale&);
110 inline char narrow(_CharT, char) const ;
111 inline _CharT widen(char) const;
113 // Helper function that makes testing for EOF more convenient.
114 static bool _STLP_CALL _S_eof(int_type __c) {
115 const int_type __eof = _Traits::eof();
116 return _Traits::eq_int_type(__c, __eof);
122 void init(basic_streambuf<_CharT, _Traits>* __streambuf);
126 // Helper function used in istream and ostream. It is called only from
128 void _M_handle_exception(ios_base::iostate __flag);
130 private: // Data members
131 char_type _M_fill; // The fill character, used for padding.
133 basic_streambuf<_CharT, _Traits>* _M_streambuf;
134 basic_ostream<_CharT, _Traits>* _M_tied_ostream;
139 template <class _CharT, class _Traits>
141 basic_ios<_CharT, _Traits>::narrow(_CharT __c, char __default) const
142 { return ((const ctype<_CharT>*)this->_M_ctype_facet())->narrow(__c, __default); }
144 template <class _CharT, class _Traits>
146 basic_ios<_CharT, _Traits>::widen(char __c) const
148 return ((const ctype<_CharT>*)this->_M_ctype_facet())->widen(__c); }
150 # if defined (_STLP_USE_TEMPLATE_EXPORT)
151 _STLP_EXPORT_TEMPLATE_CLASS basic_ios<char, char_traits<char> >;
152 # if ! defined (_STLP_NO_WCHAR_T)
153 _STLP_EXPORT_TEMPLATE_CLASS basic_ios<wchar_t, char_traits<wchar_t> >;
155 # endif /* _STLP_USE_TEMPLATE_EXPORT */
157 # if !defined (_STLP_NO_METHOD_SPECIALIZATION)
160 basic_ios<char, char_traits<char> >::narrow(char __c, char) const
167 basic_ios<char, char_traits<char> >::widen(char __c) const
171 # endif /* _STLP_NO_METHOD_SPECIALIZATION */
176 #if defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION) && !defined (_STLP_LINK_TIME_INSTANTIATION)
177 # include <stl/_ios.c>
180 // The following is needed to ensure that the inlined _Stl_loc_init functions
181 // that ios_base::_Loc_init::_Loc_init() calls are found eventually.
182 // Otherwise, undefined externs may be caused.
184 #if defined(__BORLANDC__) && defined(_RTLDLL)
185 # ifndef _STLP_INTERNAL_NUM_PUT_H
186 # include <stl/_num_put.h>
188 # ifndef _STLP_INTERNAL_NUM_GET_H
189 # include <stl/_num_get.h>
191 # ifndef _STLP_INTERNAL_MONETARY_H
192 # include <stl/_monetary.h>
194 # ifndef _STLP_INTERNAL_TIME_FACETS_H
195 # include <stl/_time_facets.h>
199 #endif /* _STLP_IOS */