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| // 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 */ |
| |
| |