// basic_ios locale and locale-related member functions -*- C++ -*- // Copyright (C) 1999, 2001, 2002, 2003 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_TCC #define _CPP_BITS_BASICIOS_TCC 1 #pragma GCC system_header namespace std { template void basic_ios<_CharT, _Traits>::clear(iostate __state) { 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"); } template basic_streambuf<_CharT, _Traits>* basic_ios<_CharT, _Traits>::rdbuf(basic_streambuf<_CharT, _Traits>* __sb) { basic_streambuf<_CharT, _Traits>* __old = _M_streambuf; _M_streambuf = __sb; this->clear(); return __old; } template basic_ios<_CharT, _Traits>& basic_ios<_CharT, _Traits>::copyfmt(const basic_ios& __rhs) { // Per 27.1.1, do not call imbue, yet must trash all caches // associated with imbue() // Alloc any new word array first, so if it fails we have "rollback". _Words* __words = (__rhs._M_word_size <= _S_local_word_size) ? _M_local_word : new _Words[__rhs._M_word_size]; // Bump refs before doing callbacks, for safety. _Callback_list* __cb = __rhs._M_callbacks; if (__cb) __cb->_M_add_reference(); _M_call_callbacks(erase_event); if (_M_word != _M_local_word) { delete [] _M_word; _M_word = 0; } _M_dispose_callbacks(); // NB: Don't want any added during above. _M_callbacks = __cb; for (int __i = 0; __i < __rhs._M_word_size; ++__i) __words[__i] = __rhs._M_word[__i]; if (_M_word != _M_local_word) { delete [] _M_word; _M_word = 0; } _M_word = __words; _M_word_size = __rhs._M_word_size; this->flags(__rhs.flags()); this->width(__rhs.width()); this->precision(__rhs.precision()); this->tie(__rhs.tie()); this->fill(__rhs.fill()); _M_ios_locale = __rhs.getloc(); _M_cache_locale(_M_ios_locale); _M_call_callbacks(copyfmt_event); // The next is required to be the last assignment. this->exceptions(__rhs.exceptions()); return *this; } template char basic_ios<_CharT, _Traits>::narrow(char_type __c, char __dfault) const { char __ret = __dfault; if (_M_check_facet(_M_fctype)) __ret = _M_fctype->narrow(__c, __dfault); return __ret; } template _CharT basic_ios<_CharT, _Traits>::widen(char __c) const { char_type __ret = char_type(); if (_M_check_facet(_M_fctype)) __ret = _M_fctype->widen(__c); return __ret; } // Locales: template locale basic_ios<_CharT, _Traits>::imbue(const locale& __loc) { locale __old(this->getloc()); ios_base::imbue(__loc); _M_cache_locale(__loc); if (this->rdbuf() != 0) this->rdbuf()->pubimbue(__loc); return __old; } template void basic_ios<_CharT, _Traits>::init(basic_streambuf<_CharT, _Traits>* __sb) { // NB: This may be called more than once on the same object. ios_base::_M_init(); // Cache locale data and specific facets used by iostreams. if (!_M_locale_cache.get()) { typedef __locale_cache<_CharT> __cache_t; this->_M_locale_cache = auto_ptr<__locale_cache_base>(static_cast<__locale_cache_base*>(new __cache_t)); _M_cache_locale(_M_ios_locale); } // NB: The 27.4.4.1 Postconditions Table specifies requirements // after basic_ios::init() has been called. As part of this, // fill() must return widen(' ') any time after init() has been // called, which needs an imbued ctype facet of char_type to // return without throwing an exception. Unfortunately, // ctype is not necessarily a required facet, so // streams with char_type != [char, wchar_t] will not have it by // default. Because of this, the correct value for _M_fill is // constructed on the first call of fill(). That way, // unformatted input and output with non-required basic_ios // instantiations is possible even without imbuing the expected // ctype facet. _M_fill = _CharT(); _M_fill_init = false; _M_tie = 0; _M_exception = goodbit; _M_streambuf = __sb; _M_streambuf_state = __sb ? goodbit : badbit; } template void basic_ios<_CharT, _Traits>::_M_cache_locale(const locale& __loc) { if (__builtin_expect(has_facet<__ctype_type>(__loc), true)) _M_fctype = &use_facet<__ctype_type>(__loc); if (__builtin_expect(has_facet<__numput_type>(__loc), true)) _M_fnumput = &use_facet<__numput_type>(__loc); if (__builtin_expect(has_facet<__numget_type>(__loc), true)) _M_fnumget = &use_facet<__numget_type>(__loc); static_cast<__locale_cache<_CharT>&>(_M_cache())._M_init(__loc); } // Inhibit implicit instantiations for required instantiations, // which are defined via explicit instantiations elsewhere. // NB: This syntax is a GNU extension. #if _GLIBCPP_EXTERN_TEMPLATE extern template class basic_ios; #ifdef _GLIBCPP_USE_WCHAR_T extern template class basic_ios; #endif #endif } // namespace std #endif