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Diffstat (limited to 'libstdc++-v3/bits/basic_ios.h')
| -rw-r--r-- | libstdc++-v3/bits/basic_ios.h | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/libstdc++-v3/bits/basic_ios.h b/libstdc++-v3/bits/basic_ios.h new file mode 100644 index 0000000..8168ec0 --- /dev/null +++ b/libstdc++-v3/bits/basic_ios.h @@ -0,0 +1,216 @@ +// 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 */ + + + + + |