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// Iostreams base classes -*- C++ -*-
// Copyright (C) 1997-1999 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
#ifndef _CPP_BITS_BASICIOS_H
#define _CPP_BITS_BASICIOS_H 1
#include <bits/sbuf_iter.h>
namespace std {
// 27.4.5 Template class basic_ios
template<typename _CharT, typename _Traits>
class basic_ios : public ios_base
{
public:
// Types:
typedef _CharT char_type;
typedef typename _Traits::int_type int_type;
typedef typename _Traits::pos_type pos_type;
typedef typename _Traits::off_type off_type;
typedef _Traits traits_type;
// Non-standard Types:
typedef ctype<_CharT> __ctype_type;
// From ostream
typedef ostreambuf_iterator<_CharT> __ostreambuf_iter;
typedef num_put<_CharT, __ostreambuf_iter> __numput_type;
typedef istreambuf_iterator<_CharT> __istreambuf_iter;
typedef num_get<_CharT, __istreambuf_iter> __numget_type;
// Data members:
private:
basic_ostream<_CharT, _Traits>* _M_tie;
char_type _M_fill;
iostate _M_exception;
protected:
basic_streambuf<_CharT, _Traits>* _M_streambuf;
iostate _M_streambuf_state;
// Cached use_facet<ctype>, which is based on the current locale info.
const __ctype_type* _M_fctype_ios;
// From ostream.
const __numput_type* _M_fnumput;
// From istream.
const __numget_type* _M_fnumget;
public:
inline const __ctype_type*
_M_get_fctype_ios(void)
{ return _M_fctype_ios; }
inline const __numget_type*
_M_get_fnumget(void)
{ return _M_fnumget; }
inline const __numput_type*
_M_get_fnumput(void)
{ return _M_fnumput; }
operator void*() const
{ return this->fail() ? 0 : const_cast<basic_ios*>(this); }
inline bool
operator!() const
{ return this->fail(); }
inline iostate
rdstate() const
{ return _M_streambuf_state; }
inline void
clear(iostate __state = goodbit)
{
if (this->rdbuf())
_M_streambuf_state = __state;
else
_M_streambuf_state = __state | badbit;
if ((this->rdstate() & this->exceptions()))
throw failure("basic_ios::clear(iostate) caused exception");
}
inline void
setstate(iostate __state)
{ this->clear(this->rdstate() | __state); }
inline bool
good() const
{ return this->rdstate() == 0; }
inline bool
eof() const
{ return (this->rdstate() & eofbit) != 0; }
inline bool
fail() const
{ return (this->rdstate() & (badbit | failbit)) != 0; }
inline bool
bad() const
{ return (this->rdstate() & badbit) != 0; }
inline iostate
exceptions() const
{ return _M_exception; }
inline void
exceptions(iostate __except)
{
_M_exception = __except;
this->clear(_M_streambuf_state);
}
// Constructor/destructor:
explicit
basic_ios(basic_streambuf<_CharT, _Traits>* __sb) : ios_base()
{ this->init(__sb); }
virtual
~basic_ios() { }
// Members:
inline basic_ostream<_CharT, _Traits>*
tie() const
{ return _M_tie; }
inline basic_ostream<_CharT, _Traits>*
tie(basic_ostream<_CharT, _Traits>* __tiestr)
{
basic_ostream<_CharT, _Traits>* __old = _M_tie;
_M_tie = __tiestr;
return __old;
}
inline basic_streambuf<_CharT, _Traits>*
rdbuf() const
{ return _M_streambuf; }
basic_streambuf<_CharT, _Traits>*
rdbuf(basic_streambuf<_CharT, _Traits>* __sb);
basic_ios&
copyfmt(const basic_ios& __rhs);
inline char_type
fill() const
{ return _M_fill; }
inline char_type
fill(char_type __ch)
{
char_type __old = _M_fill;
_M_fill = __ch;
return __old;
}
// Locales:
locale
imbue(const locale& __loc);
char
narrow(char_type __c, char __dfault) const;
char_type
widen(char __c) const;
protected:
// 27.4.5.1 basic_ios constructors
basic_ios() : ios_base()
{ }
void
init(basic_streambuf<_CharT, _Traits>* __sb);
};
} // namespace std
#ifdef _GLIBCPP_NO_TEMPLATE_EXPORT
# define export
//#include <bits/basic_ios.tcc>
#endif
#endif /* _CPP_BITS_BASICIOS_H */
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