1 // Iostreams base classes -*- C++ -*-
3 // Copyright (C) 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 2, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING. If not, write to the Free
18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21 // As a special exception, you may use this file as part of a free software
22 // library without restriction. Specifically, if other files instantiate
23 // templates or use macros or inline functions from this file, or you compile
24 // this file and link it with other files to produce an executable, this
25 // file does not by itself cause the resulting executable to be covered by
26 // the GNU General Public License. This exception does not however
27 // invalidate any other reasons why the executable file might be covered by
28 // the GNU General Public License.
30 #ifndef _CPP_BITS_BASICIOS_H
31 #define _CPP_BITS_BASICIOS_H 1
33 #include <bits/sbuf_iter.h>
34 #include <bits/locale_facets.h>
38 // 27.4.5 Template class basic_ios
39 template<typename _CharT, typename _Traits>
40 class basic_ios : public ios_base
45 typedef _CharT char_type;
46 typedef typename _Traits::int_type int_type;
47 typedef typename _Traits::pos_type pos_type;
48 typedef typename _Traits::off_type off_type;
49 typedef _Traits traits_type;
51 // Non-standard Types:
52 typedef ctype<_CharT> __ctype_type;
54 typedef ostreambuf_iterator<_CharT> __ostreambuf_iter;
55 typedef num_put<_CharT, __ostreambuf_iter> __numput_type;
56 typedef istreambuf_iterator<_CharT> __istreambuf_iter;
57 typedef num_get<_CharT, __istreambuf_iter> __numget_type;
61 basic_ostream<_CharT, _Traits>* _M_tie;
66 basic_streambuf<_CharT, _Traits>* _M_streambuf;
67 iostate _M_streambuf_state;
69 // Cached use_facet<ctype>, which is based on the current locale info.
70 const __ctype_type* _M_ios_fctype;
72 const __numput_type* _M_fnumput;
74 const __numget_type* _M_fnumget;
78 inline const __ctype_type*
79 _M_get_fctype_ios(void)
80 { return _M_ios_fctype; }
82 inline const __numget_type*
84 { return _M_fnumget; }
86 inline const __numput_type*
88 { return _M_fnumput; }
90 operator void*() const
91 { return this->fail() ? 0 : const_cast<basic_ios*>(this); }
95 { return this->fail(); }
99 { return _M_streambuf_state; }
102 clear(iostate __state = goodbit)
105 _M_streambuf_state = __state;
107 _M_streambuf_state = __state | badbit;
108 if ((this->rdstate() & this->exceptions()))
109 __throw_ios_failure("basic_ios::clear(iostate) caused exception");
113 setstate(iostate __state)
114 { this->clear(this->rdstate() | __state); }
118 { return this->rdstate() == 0; }
122 { return (this->rdstate() & eofbit) != 0; }
126 { return (this->rdstate() & (badbit | failbit)) != 0; }
130 { return (this->rdstate() & badbit) != 0; }
134 { return _M_exception; }
137 exceptions(iostate __except)
139 _M_exception = __except;
140 this->clear(_M_streambuf_state);
143 // Constructor/destructor:
145 basic_ios(basic_streambuf<_CharT, _Traits>* __sb) : ios_base()
146 { this->init(__sb); }
152 inline basic_ostream<_CharT, _Traits>*
156 inline basic_ostream<_CharT, _Traits>*
157 tie(basic_ostream<_CharT, _Traits>* __tiestr)
159 basic_ostream<_CharT, _Traits>* __old = _M_tie;
164 inline basic_streambuf<_CharT, _Traits>*
166 { return _M_streambuf; }
168 basic_streambuf<_CharT, _Traits>*
169 rdbuf(basic_streambuf<_CharT, _Traits>* __sb);
172 copyfmt(const basic_ios& __rhs);
181 char_type __old = _M_fill;
188 imbue(const locale& __loc);
191 narrow(char_type __c, char __dfault) const;
194 widen(char __c) const;
197 // 27.4.5.1 basic_ios constructors
198 basic_ios() : ios_base()
202 init(basic_streambuf<_CharT, _Traits>* __sb);
207 #ifdef _GLIBCPP_NO_TEMPLATE_EXPORT
209 #include <bits/basic_ios.tcc>
212 #endif /* _CPP_BITS_BASICIOS_H */