217 lines
5.6 KiB
C
217 lines
5.6 KiB
C
|
// 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 */
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|