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Whole document tree                   basic_ios.h Go to the documentation of this file. // Iostreams base classes -*- C++ -*- // Copyright (C) 1997, 1998, 1999, 2001 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 #pragma GCC system_header #include <bits/sbuf_iter.h> #include <bits/locale_facets.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; typedef ostreambuf_iterator<_CharT, _Traits> __ostreambuf_iter; typedef num_put<_CharT, __ostreambuf_iter> __numput_type; typedef istreambuf_iterator<_CharT, _Traits> __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_ios_fctype; // 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_ios_fctype; } 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_ios_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); bool _M_check_facet(const locale::facet* __f) { bool __ret = false; if (__f) __ret = true; else __throw_bad_cast(); return __ret; } void _M_cache_facets(const locale& __loc); }; } // namespace std #ifdef _GLIBCPP_NO_TEMPLATE_EXPORT # define export #include <bits/basic_ios.tcc> #endif #endif /* _CPP_BITS_BASICIOS_H */