69302d8b5e
2001-03-14 Benjamin Kosnik <bkoz@redhat.com> libstdc++/2020 * include/bits/std_streambuf.h: Remove cached locale facets. (basic_streambuf::_M_buf_fctype): Remove. (basic_streambuf::~basic_streambuf): Remove here. (basic_streambuf::basic_streambuf): Same. (basic_streambuf::imbue): Same. * include/bits/fstream.tcc (filebuf::imbue): Remove _M_buf_fctype. * include/bits/std_fstream.h (basic_filebuf::_M_fcvt): Remove. (basic_filebuf::~basic_filebuf()): Remove here. * include/bits/fstream.tcc (basic_filebuf::basic_filebuf): Same. (basic_filebuf::imbue): Same. * include/bits/localefwd.h (_Count_ones): Remove. (locale::_S_num_categories): Just use 6, since this doesn't actually change, ever. * include/bits/locale_facets.tcc (has_facet): Simplify. (use_facet): Same. * testsuite/27_io/filebuf.cc (test06): Add tests. From-SVN: r40472
1228 lines
40 KiB
C++
1228 lines
40 KiB
C++
// Locale support -*- C++ -*-
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// Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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// Warning: this file is not meant for user inclusion. Use <locale>.
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#ifndef _CPP_BITS_LOCFACETS_TCC
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#define _CPP_BITS_LOCFACETS_TCC 1
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#include <bits/std_cerrno.h>
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#include <bits/std_clocale.h> // For localeconv
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#include <bits/std_cstdlib.h> // For strof, strtold
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#include <bits/std_limits.h> // For numeric_limits
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#include <bits/std_memory.h> // For auto_ptr
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#include <bits/sbuf_iter.h> // For streambuf_iterators
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#include <bits/std_cctype.h> // For isspace
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#include <typeinfo> // For bad_cast
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#include <bits/std_vector.h>
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namespace std
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{
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template<typename _Facet>
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locale
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locale::combine(const locale& __other)
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{
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locale __copy(*this);
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__copy._M_impl->_M_replace_facet(__other._M_impl, &_Facet::id);
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return __copy;
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}
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template<typename _CharT, typename _Traits, typename _Alloc>
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bool
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locale::operator()(const basic_string<_CharT, _Traits, _Alloc>& __s1,
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const basic_string<_CharT, _Traits, _Alloc>& __s2) const
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{
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typedef std::collate<_CharT> __collate_type;
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const __collate_type* __fcoll = &use_facet<__collate_type>(*this);
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return (__fcoll->compare(__s1.data(), __s1.data() + __s1.length(),
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__s2.data(), __s2.data() + __s2.length()) < 0);
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}
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template<typename _Facet>
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const _Facet&
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use_facet(const locale& __loc)
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{
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typedef locale::_Impl::__vec_facet __vec_facet;
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size_t __i = _Facet::id._M_index;
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__vec_facet* __facet = __loc._M_impl->_M_facets;
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const locale::facet* __fp = (*__facet)[__i];
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if (__fp == 0 || __i >= __facet->size())
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__throw_bad_cast();
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return static_cast<const _Facet&>(*__fp);
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}
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template<typename _Facet>
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bool
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has_facet(const locale& __loc) throw()
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{
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typedef locale::_Impl::__vec_facet __vec_facet;
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size_t __i = _Facet::id._M_index;
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__vec_facet* __facet = __loc._M_impl->_M_facets;
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return (__i < __facet->size() && (*__facet)[__i] != 0);
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}
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// __match_parallel
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// matches input __s against a set of __ntargs strings in __targets,
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// placing in __matches a vector of indices into __targets which
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// match, and in __remain the number of such matches. If it hits
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// end of sequence before it minimizes the set, sets __eof.
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// Empty strings are never matched.
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template<typename _InIter, typename _CharT>
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_InIter
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__match_parallel(_InIter __s, _InIter __end, int __ntargs,
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const basic_string<_CharT>* __targets,
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int* __matches, int& __remain, bool& __eof)
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{
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typedef basic_string<_CharT> __string_type;
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__eof = false;
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for (int __ti = 0; __ti < __ntargs; ++__ti)
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__matches[__ti] = __ti;
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__remain = __ntargs;
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size_t __pos = 0;
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do
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{
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int __ti = 0;
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while (__ti < __remain && __pos == __targets[__matches[__ti]].size())
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++__ti;
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if (__ti == __remain)
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{
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if (__pos == 0) __remain = 0;
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return __s;
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}
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if (__s == __end)
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__eof = true;
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bool __matched = false;
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for (int __ti2 = 0; __ti2 < __remain; )
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{
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const __string_type& __target = __targets[__matches[__ti2]];
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if (__pos < __target.size())
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{
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if (__eof || __target[__pos] != *__s)
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{
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__matches[__ti2] = __matches[--__remain];
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continue;
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}
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__matched = true;
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}
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++__ti2;
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}
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if (__matched)
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{
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++__s;
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++__pos;
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}
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for (int __ti3 = 0; __ti3 < __remain;)
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{
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if (__pos > __targets[__matches[__ti3]].size())
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{
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__matches[__ti3] = __matches[--__remain];
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continue;
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}
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++__ti3;
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}
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}
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while (__remain);
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return __s;
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}
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template<typename _CharT>
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_Format_cache<_CharT>::_Format_cache()
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: _M_valid(true), _M_use_grouping(false)
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{ }
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template<>
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_Format_cache<char>::_Format_cache();
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template<>
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_Format_cache<wchar_t>::_Format_cache();
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template<typename _CharT>
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void
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_Format_cache<_CharT>::_M_populate(ios_base& __io)
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{
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locale __loc = __io.getloc ();
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numpunct<_CharT> const& __np = use_facet<numpunct<_CharT> >(__loc);
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_M_truename = __np.truename();
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_M_falsename = __np.falsename();
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_M_thousands_sep = __np.thousands_sep();
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_M_decimal_point = __np.decimal_point();
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_M_grouping = __np.grouping();
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_M_use_grouping = _M_grouping.size() != 0 && _M_grouping.data()[0] != 0;
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_M_valid = true;
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}
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// This function is always called via a pointer installed in
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// an ios_base by ios_base::register_callback.
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template<typename _CharT>
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void
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_Format_cache<_CharT>::
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_S_callback(ios_base::event __ev, ios_base& __ios, int __ix) throw()
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{
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void*& __p = __ios.pword(__ix);
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switch (__ev)
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{
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case ios_base::erase_event:
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delete static_cast<_Format_cache<_CharT>*> (__p); __p = 0;
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break;
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case ios_base::copyfmt_event:
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// If just stored zero, the callback would get registered again.
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try {
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__p = new _Format_cache<_CharT>;
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}
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catch(...) {
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}
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break;
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case ios_base::imbue_event:
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static_cast<_Format_cache<_CharT>*>(__p)->_M_valid = false;
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break;
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}
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}
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template<typename _CharT>
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_Format_cache<_CharT>*
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_Format_cache<_CharT>::_S_get(ios_base& __ios)
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{
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if (!_S_pword_ix)
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_S_pword_ix = ios_base::xalloc(); // XXX MT
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void*& __p = __ios.pword(_S_pword_ix);
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// XXX What if pword fails? must check failbit, throw.
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if (__p == 0) // XXX MT? maybe sentry takes care of it
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{
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auto_ptr<_Format_cache<_CharT> > __ap(new _Format_cache<_CharT>);
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__ios.register_callback(&_Format_cache<_CharT>::_S_callback,
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_S_pword_ix);
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__p = __ap.release();
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}
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_Format_cache<_CharT>* __ncp = static_cast<_Format_cache<_CharT>*>(__p);
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if (!__ncp->_M_valid)
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__ncp->_M_populate(__ios);
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return __ncp;
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}
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// This member function takes an (w)istreambuf_iterator object and
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// parses it into a generic char array suitable for parsing with
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// strto[l,ll,f,d]. The thought was to encapsulate the conversion
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// into this one function, and thus the num_get::do_get member
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// functions can just adjust for the type of the overloaded
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// argument and process the char array returned from _M_extract.
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// Other things were also considered, including a fused
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// multiply-add loop that would obviate the need for any call to
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// strto... at all: however, it would b e a bit of a pain, because
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// you'd have to be able to return either floating or integral
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// types, etc etc. The current approach seems to be smack dab in
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// the middle between an unoptimized approach using sscanf, and
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// some kind of hyper-optimized approach alluded to above.
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// XXX
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// Need to do partial specialization to account for differences
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// between character sets. For char, this is pretty
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// straightforward, but for wchar_t, the conversion to a plain-jane
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// char type is a bit more involved.
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template<typename _CharT, typename _InIter>
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void
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num_get<_CharT, _InIter>::
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_M_extract(_InIter /*__beg*/, _InIter /*__end*/, ios_base& /*__io*/,
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ios_base::iostate& /*__err*/, char* /*__xtrc*/,
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int& /*__base*/, bool /*__fp*/) const
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{
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// XXX Not currently done: need to expand upon char version below.
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}
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template<>
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void
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num_get<char, istreambuf_iterator<char> >::
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_M_extract(istreambuf_iterator<char> __beg,
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istreambuf_iterator<char> __end, ios_base& __io,
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ios_base::iostate& __err, char* __xtrc, int& __base,
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bool __fp) const;
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#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
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// NB: This is an unresolved library defect #17
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template<typename _CharT, typename _InIter>
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_InIter
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num_get<_CharT, _InIter>::
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do_get(iter_type __beg, iter_type __end, ios_base& __io,
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ios_base::iostate& __err, bool& __v) const
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{
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// Parse bool values as long
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if (!(__io.flags() & ios_base::boolalpha))
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{
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// NB: We can't just call do_get(long) here, as it might
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// refer to a derived class.
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// Stage 1: extract and determine the conversion specifier.
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// Assuming leading zeros eliminated, thus the size of 32 for
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// integral types.
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char __xtrc[32] = {'\0'};
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int __base;
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_M_extract(__beg, __end, __io, __err, __xtrc, __base, false);
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// Stage 2: convert and store results.
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char* __sanity;
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errno = 0;
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long __l = strtol(__xtrc, &__sanity, __base);
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if (!(__err & ios_base::failbit)
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&& __l <= 1
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&& __sanity != __xtrc && *__sanity == '\0' && errno == 0)
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__v = __l;
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else
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__err |= ios_base::failbit;
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}
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// Parse bool values as alphanumeric
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else
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{
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typedef _Format_cache<char_type> __fcache_type;
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__fcache_type* __fmt = __fcache_type::_S_get(__io);
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const char_type* __true = __fmt->_M_truename.c_str();
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const char_type* __false = __fmt->_M_falsename.c_str();
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const size_t __truelen = __traits_type::length(__true) - 1;
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const size_t __falselen = __traits_type::length(__false) - 1;
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for (size_t __pos = 0; __beg != __end; ++__pos)
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{
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char_type __c = *__beg++;
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bool __testf = __c == __false[__pos];
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bool __testt = __c == __true[__pos];
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if (!(__testf || __testt))
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{
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__err |= ios_base::failbit;
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break;
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}
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else if (__testf && __pos == __falselen)
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{
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__v = 0;
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break;
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}
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else if (__testt && __pos == __truelen)
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{
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__v = 1;
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break;
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}
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}
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if (__beg == __end)
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__err |= ios_base::eofbit;
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}
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return __beg;
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}
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#endif
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#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
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template<typename _CharT, typename _InIter>
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_InIter
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num_get<_CharT, _InIter>::
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do_get(iter_type __beg, iter_type __end, ios_base& __io,
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ios_base::iostate& __err, short& __v) const
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{
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// Stage 1: extract and determine the conversion specifier.
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// Assuming leading zeros eliminated, thus the size of 32 for
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// integral types.
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char __xtrc[32]= {'\0'};
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int __base;
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_M_extract(__beg, __end, __io, __err, __xtrc, __base, false);
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// Stage 2: convert and store results.
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char* __sanity;
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errno = 0;
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long __l = strtol(__xtrc, &__sanity, __base);
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if (!(__err & ios_base::failbit)
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&& __sanity != __xtrc && *__sanity == '\0' && errno == 0
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&& __l >= SHRT_MIN && __l <= SHRT_MAX)
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__v = static_cast<short>(__l);
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else
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__err |= ios_base::failbit;
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return __beg;
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}
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template<typename _CharT, typename _InIter>
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_InIter
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num_get<_CharT, _InIter>::
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do_get(iter_type __beg, iter_type __end, ios_base& __io,
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ios_base::iostate& __err, int& __v) const
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{
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// Stage 1: extract and determine the conversion specifier.
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// Assuming leading zeros eliminated, thus the size of 32 for
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// integral types.
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char __xtrc[32] = {'\0'};
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int __base;
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_M_extract(__beg, __end, __io, __err, __xtrc, __base, false);
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// Stage 2: convert and store results.
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char* __sanity;
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errno = 0;
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long __l = strtol(__xtrc, &__sanity, __base);
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if (!(__err & ios_base::failbit)
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&& __sanity != __xtrc && *__sanity == '\0' && errno == 0
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&& __l >= INT_MIN && __l <= INT_MAX)
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__v = static_cast<int>(__l);
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else
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__err |= ios_base::failbit;
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return __beg;
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}
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#endif
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template<typename _CharT, typename _InIter>
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_InIter
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num_get<_CharT, _InIter>::
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do_get(iter_type __beg, iter_type __end, ios_base& __io,
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ios_base::iostate& __err, long& __v) const
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{
|
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// Stage 1: extract and determine the conversion specifier.
|
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// Assuming leading zeros eliminated, thus the size of 32 for
|
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// integral types.
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char __xtrc[32]= {'\0'};
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int __base;
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_M_extract(__beg, __end, __io, __err, __xtrc, __base, false);
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|
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// Stage 2: convert and store results.
|
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char* __sanity;
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errno = 0;
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long __l = strtol(__xtrc, &__sanity, __base);
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if (!(__err & ios_base::failbit)
|
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&& __sanity != __xtrc && *__sanity == '\0' && errno == 0)
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__v = __l;
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else
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__err |= ios_base::failbit;
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return __beg;
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}
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#ifdef _GLIBCPP_USE_LONG_LONG
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template<typename _CharT, typename _InIter>
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_InIter
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num_get<_CharT, _InIter>::
|
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do_get(iter_type __beg, iter_type __end, ios_base& __io,
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ios_base::iostate& __err, long long& __v) const
|
|
{
|
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// Stage 1: extract and determine the conversion specifier.
|
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// Assuming leading zeros eliminated, thus the size of 32 for
|
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// integral types.
|
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char __xtrc[32]= {'\0'};
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int __base;
|
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_M_extract(__beg, __end, __io, __err, __xtrc, __base, false);
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|
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// Stage 2: convert and store results.
|
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char* __sanity;
|
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errno = 0;
|
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long long __ll = strtoll(__xtrc, &__sanity, __base);
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if (!(__err & ios_base::failbit)
|
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&& __sanity != __xtrc && *__sanity == '\0' && errno == 0)
|
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__v = __ll;
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else
|
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__err |= ios_base::failbit;
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|
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return __beg;
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}
|
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#endif
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|
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template<typename _CharT, typename _InIter>
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_InIter
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num_get<_CharT, _InIter>::
|
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do_get(iter_type __beg, iter_type __end, ios_base& __io,
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ios_base::iostate& __err, unsigned short& __v) const
|
|
{
|
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// Stage 1: extract and determine the conversion specifier.
|
|
// Assuming leading zeros eliminated, thus the size of 32 for
|
|
// integral types.
|
|
char __xtrc[32]= {'\0'};
|
|
int __base;
|
|
_M_extract(__beg, __end, __io, __err, __xtrc, __base, false);
|
|
|
|
// Stage 2: convert and store results.
|
|
char* __sanity;
|
|
errno = 0;
|
|
unsigned long __ul = strtoul(__xtrc, &__sanity, __base);
|
|
if (!(__err & ios_base::failbit)
|
|
&& __sanity != __xtrc && *__sanity == '\0' && errno == 0
|
|
&& __ul <= USHRT_MAX)
|
|
__v = static_cast<unsigned short>(__ul);
|
|
else
|
|
__err |= ios_base::failbit;
|
|
|
|
return __beg;
|
|
}
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
num_get<_CharT, _InIter>::
|
|
do_get(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, unsigned int& __v) const
|
|
{
|
|
// Stage 1: extract and determine the conversion specifier.
|
|
// Assuming leading zeros eliminated, thus the size of 32 for
|
|
// integral types.
|
|
char __xtrc[32]= {'\0'};
|
|
int __base;
|
|
_M_extract(__beg, __end, __io, __err, __xtrc, __base, false);
|
|
|
|
// Stage 2: convert and store results.
|
|
char* __sanity;
|
|
errno = 0;
|
|
unsigned long __ul = strtoul(__xtrc, &__sanity, __base);
|
|
if (!(__err & ios_base::failbit)
|
|
&& __sanity != __xtrc && *__sanity == '\0' && errno == 0
|
|
&& __ul <= UINT_MAX)
|
|
__v = static_cast<unsigned int>(__ul);
|
|
else
|
|
__err |= ios_base::failbit;
|
|
|
|
return __beg;
|
|
}
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
num_get<_CharT, _InIter>::
|
|
do_get(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, unsigned long& __v) const
|
|
{
|
|
// Stage 1: extract and determine the conversion specifier.
|
|
// Assuming leading zeros eliminated, thus the size of 32 for
|
|
// integral types.
|
|
char __xtrc[32] = {'\0'};
|
|
int __base;
|
|
_M_extract(__beg, __end, __io, __err, __xtrc, __base, false);
|
|
|
|
// Stage 2: convert and store results.
|
|
char* __sanity;
|
|
errno = 0;
|
|
unsigned long __ul = strtoul(__xtrc, &__sanity, __base);
|
|
if (!(__err & ios_base::failbit)
|
|
&& __sanity != __xtrc && *__sanity == '\0' && errno == 0)
|
|
__v = __ul;
|
|
else
|
|
__err |= ios_base::failbit;
|
|
|
|
return __beg;
|
|
}
|
|
|
|
#ifdef _GLIBCPP_USE_LONG_LONG
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
num_get<_CharT, _InIter>::
|
|
do_get(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, unsigned long long& __v) const
|
|
{
|
|
// Stage 1: extract and determine the conversion specifier.
|
|
// Assuming leading zeros eliminated, thus the size of 32 for
|
|
// integral types.
|
|
char __xtrc[32]= {'\0'};
|
|
int __base;
|
|
_M_extract(__beg, __end, __io, __err, __xtrc, __base, false);
|
|
|
|
// Stage 2: convert and store results.
|
|
char* __sanity;
|
|
errno = 0;
|
|
unsigned long long __ull = strtoull(__xtrc, &__sanity, __base);
|
|
if (!(__err & ios_base::failbit)
|
|
&& __sanity != __xtrc && *__sanity == '\0' && errno == 0)
|
|
__v = __ull;
|
|
else
|
|
__err |= ios_base::failbit;
|
|
|
|
return __beg;
|
|
}
|
|
#endif
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
num_get<_CharT, _InIter>::
|
|
do_get(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, float& __v) const
|
|
{
|
|
// Stage 1: extract and determine the conversion specifier.
|
|
// Assuming leading zeros eliminated, thus the size of 256 for
|
|
// floating-point types.
|
|
char __xtrc[32]= {'\0'};
|
|
int __base;
|
|
_M_extract(__beg, __end, __io, __err, __xtrc, __base, true);
|
|
|
|
// Stage 2: convert and store results.
|
|
char* __sanity;
|
|
errno = 0;
|
|
#ifdef _GLIBCPP_HAVE_STRTOF
|
|
float __f = strtof(__xtrc, &__sanity);
|
|
#else
|
|
float __f = static_cast<float>(strtod(__xtrc, &__sanity));
|
|
#endif
|
|
if (!(__err & ios_base::failbit)
|
|
&& __sanity != __xtrc && *__sanity == '\0' && errno == 0)
|
|
__v = __f;
|
|
else
|
|
__err |= ios_base::failbit;
|
|
|
|
return __beg;
|
|
}
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
num_get<_CharT, _InIter>::
|
|
do_get(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, double& __v) const
|
|
{
|
|
// Stage 1: extract and determine the conversion specifier.
|
|
// Assuming leading zeros eliminated, thus the size of 256 for
|
|
// floating-point types.
|
|
char __xtrc[32]= {'\0'};
|
|
int __base;
|
|
_M_extract(__beg, __end, __io, __err, __xtrc, __base, true);
|
|
|
|
// Stage 2: convert and store results.
|
|
char* __sanity;
|
|
errno = 0;
|
|
double __d = strtod(__xtrc, &__sanity);
|
|
if (!(__err & ios_base::failbit)
|
|
&& __sanity != __xtrc && *__sanity == '\0' && errno == 0)
|
|
__v = __d;
|
|
else
|
|
__err |= ios_base::failbit;
|
|
|
|
return __beg;
|
|
}
|
|
|
|
#if defined(_GLIBCPP_HAVE_STRTOLD) && !defined(__hpux)
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
num_get<_CharT, _InIter>::
|
|
do_get(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, long double& __v) const
|
|
{
|
|
// Stage 1: extract and determine the conversion specifier.
|
|
// Assuming leading zeros eliminated, thus the size of 256 for
|
|
// floating-point types.
|
|
char __xtrc[32]= {'\0'};
|
|
int __base;
|
|
_M_extract(__beg, __end, __io, __err, __xtrc, __base, true);
|
|
|
|
// Stage 2: convert and store results.
|
|
char* __sanity;
|
|
errno = 0;
|
|
long double __ld = strtold(__xtrc, &__sanity);
|
|
if (!(__err & ios_base::failbit)
|
|
&& __sanity != __xtrc && *__sanity == '\0' && errno == 0)
|
|
__v = __ld;
|
|
else
|
|
__err |= ios_base::failbit;
|
|
|
|
return __beg;
|
|
}
|
|
#else
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
num_get<_CharT, _InIter>::
|
|
do_get(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, long double& __v) const
|
|
{
|
|
// Stage 1: extract
|
|
char __xtrc[32]= {'\0'};
|
|
int __base;
|
|
_M_extract(__beg, __end, __io, __err, __xtrc, __base, true);
|
|
|
|
// Stage 2: determine a conversion specifier.
|
|
ios_base::fmtflags __basefield = __io.flags() & ios_base::basefield;
|
|
const char* __conv;
|
|
if (__basefield == ios_base::oct)
|
|
__conv = "%Lo";
|
|
else if (__basefield == ios_base::hex)
|
|
__conv = "%LX";
|
|
else if (__basefield == 0)
|
|
__conv = "%Li";
|
|
else
|
|
__conv = "%Lg";
|
|
|
|
// Stage 3: store results.
|
|
long double __ld;
|
|
int __p = sscanf(__xtrc, __conv, &__ld);
|
|
if (__p
|
|
&& static_cast<typename __traits_type::int_type>(__p)
|
|
!= __traits_type::eof())
|
|
__v = __ld;
|
|
else
|
|
__err |= ios_base::failbit;
|
|
|
|
return __beg;
|
|
}
|
|
#endif
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
num_get<_CharT, _InIter>::
|
|
do_get(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, void*& __v) const
|
|
{
|
|
// Prepare for hex formatted input
|
|
typedef ios_base::fmtflags fmtflags;
|
|
fmtflags __fmt = __io.flags();
|
|
fmtflags __fmtmask = ~(ios_base::showpos | ios_base::basefield
|
|
| ios_base::uppercase | ios_base::internal);
|
|
__io.flags(__fmt & __fmtmask | (ios_base::hex | ios_base::showbase));
|
|
|
|
// Stage 1: extract and determine the conversion specifier.
|
|
// Assuming leading zeros eliminated, thus the size of 32 for
|
|
// integral types.
|
|
char __xtrc[32]= {'\0'};
|
|
int __base;
|
|
_M_extract(__beg, __end, __io, __err, __xtrc, __base, false);
|
|
|
|
// Stage 2: convert and store results.
|
|
char* __sanity;
|
|
errno = 0;
|
|
void* __vp = reinterpret_cast<void*>(strtoul(__xtrc, &__sanity, __base));
|
|
if (!(__err & ios_base::failbit)
|
|
&& __sanity != __xtrc && *__sanity == '\0' && errno == 0)
|
|
__v = __vp;
|
|
else
|
|
__err |= ios_base::failbit;
|
|
|
|
// Reset from hex formatted input
|
|
__io.flags(__fmt);
|
|
return __beg;
|
|
}
|
|
|
|
// __pad is specialized for ostreambuf_iterator, random access iterator.
|
|
template <typename _CharT, typename _OutIter>
|
|
inline _OutIter
|
|
__pad(_OutIter __s, _CharT __fill, int __padding);
|
|
|
|
template <typename _CharT, typename _RaIter>
|
|
_RaIter
|
|
__pad(_RaIter __s, _CharT __fill, int __padding,
|
|
random_access_iterator_tag)
|
|
{
|
|
fill_n(__s, __fill);
|
|
return __s + __padding;
|
|
}
|
|
|
|
template <typename _CharT, typename _OutIter, typename _Tag>
|
|
_OutIter
|
|
__pad(_OutIter __s, _CharT __fill, int __padding, _Tag)
|
|
{
|
|
while (--__padding >= 0) { *__s = __fill; ++__s; }
|
|
return __s;
|
|
}
|
|
|
|
template <typename _CharT, typename _OutIter>
|
|
inline _OutIter
|
|
__pad(_OutIter __s, _CharT __fill, int __padding)
|
|
{
|
|
return __pad(__s, __fill, __padding,
|
|
typename iterator_traits<_OutIter>::iterator_category());
|
|
}
|
|
|
|
template <typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
__pad_numeric(_OutIter __s, ios_base::fmtflags /*__flags*/,
|
|
_CharT /*__fill*/, int /*__width*/,
|
|
_CharT const* /*__first*/, _CharT const* /*__middle*/,
|
|
_CharT const* /*__last*/)
|
|
{
|
|
// XXX Not currently done: non streambuf_iterator
|
|
return __s;
|
|
}
|
|
|
|
// Partial specialization for ostreambuf_iterator.
|
|
template <typename _CharT>
|
|
ostreambuf_iterator<_CharT>
|
|
__pad_numeric(ostreambuf_iterator<_CharT> __s, ios_base::fmtflags __flags,
|
|
_CharT __fill, int __width, _CharT const* __first,
|
|
_CharT const* __middle, _CharT const* __last)
|
|
{
|
|
typedef ostreambuf_iterator<_CharT> __out_iter;
|
|
int __padding = __width - (__last - __first);
|
|
if (__padding < 0)
|
|
__padding = 0;
|
|
ios_base::fmtflags __aflags = __flags & ios_base::adjustfield;
|
|
bool __testfield = __padding == 0 || __aflags == ios_base::left
|
|
|| __aflags == ios_base::internal;
|
|
|
|
// This was needlessly complicated.
|
|
if (__first != __middle)
|
|
{
|
|
if (!__testfield)
|
|
{
|
|
__pad(__s, __fill, __padding);
|
|
__padding = 0;
|
|
}
|
|
copy(__first, __middle, __s);
|
|
}
|
|
__out_iter __s2 = __s;
|
|
|
|
if (__padding && __aflags != ios_base::left)
|
|
{
|
|
__pad(__s2, __fill, __padding);
|
|
__padding = 0;
|
|
}
|
|
__out_iter __s3 = copy(__middle, __last, __s2);
|
|
if (__padding)
|
|
__pad(__s3, __fill, __padding);
|
|
return __s3;
|
|
}
|
|
|
|
template <typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __io, char_type __fill, bool __v) const
|
|
{
|
|
const _Format_cache<_CharT>* __fmt = _Format_cache<_CharT>::_S_get(__io);
|
|
ios_base::fmtflags __flags = __io.flags();
|
|
|
|
if ((__flags & ios_base::boolalpha) == 0)
|
|
{
|
|
unsigned long __uv = __v;
|
|
return __output_integer(__s, __io, __fill, false, __uv);
|
|
}
|
|
else
|
|
{
|
|
const char_type* __first;
|
|
const char_type* __last;
|
|
if (__v)
|
|
{
|
|
__first = __fmt->_M_truename.data();
|
|
__last = __first + __fmt->_M_truename.size();
|
|
}
|
|
else
|
|
{
|
|
__first = __fmt->_M_falsename.data();
|
|
__last = __first + __fmt->_M_falsename.size();
|
|
}
|
|
copy(__first, __last, __s);
|
|
}
|
|
return __s;
|
|
}
|
|
|
|
// __group_digits inserts "group separator" characters into an array
|
|
// of characters. It's recursive, one iteration per group. It moves
|
|
// the characters in the buffer this way: "xxxx12345" -> "12,345xxx".
|
|
// Call this only with __grouping != __grend.
|
|
template <typename _CharT>
|
|
_CharT*
|
|
__group_digits(_CharT* __s, _CharT __grsep, char const* __grouping,
|
|
char const* __grend, _CharT const* __first,
|
|
_CharT const* __last)
|
|
{
|
|
if (__last - __first > *__grouping)
|
|
{
|
|
__s = __group_digits(__s, __grsep,
|
|
(__grouping + 1 == __grend ? __grouping : __grouping + 1),
|
|
__grend, __first, __last - *__grouping);
|
|
__first = __last - *__grouping;
|
|
*__s++ = __grsep;
|
|
}
|
|
do
|
|
{
|
|
*__s++ = *__first++;
|
|
}
|
|
while (__first != __last);
|
|
return __s;
|
|
}
|
|
|
|
template <typename _CharT, typename _OutIter, typename _ValueT>
|
|
_OutIter
|
|
__output_integer(_OutIter __s, ios_base& __io, _CharT __fill, bool __neg,
|
|
_ValueT __v)
|
|
{
|
|
// Leave room for "+/-," "0x," and commas.
|
|
const long _M_room = numeric_limits<_ValueT>::digits10 * 2 + 4;
|
|
_CharT __digits[_M_room];
|
|
_CharT* __front = __digits + _M_room;
|
|
ios_base::fmtflags __flags = __io.flags();
|
|
const _Format_cache<_CharT>* __fmt = _Format_cache<_CharT>::_S_get(__io);
|
|
char const* __table = __fmt->_S_literals + __fmt->_S_digits;
|
|
|
|
ios_base::fmtflags __basefield = (__flags & __io.basefield);
|
|
_CharT* __sign_end = __front;
|
|
if (__basefield == ios_base::hex)
|
|
{
|
|
if (__flags & ios_base::uppercase)
|
|
__table += 16; // use ABCDEF
|
|
do
|
|
*--__front = __table[__v & 15];
|
|
while ((__v >>= 4) != 0);
|
|
__sign_end = __front;
|
|
if (__flags & ios_base::showbase)
|
|
{
|
|
*--__front = __fmt->_S_literals[__fmt->_S_x +
|
|
((__flags & ios_base::uppercase) ? 1 : 0)];
|
|
*--__front = __table[0];
|
|
}
|
|
}
|
|
else if (__basefield == ios_base::oct)
|
|
{
|
|
do
|
|
*--__front = __table[__v & 7];
|
|
while ((__v >>= 3) != 0);
|
|
if (__flags & ios_base::showbase
|
|
&& static_cast<char>(*__front) != __table[0])
|
|
*--__front = __table[0];
|
|
__sign_end = __front;
|
|
}
|
|
else
|
|
{
|
|
// NB: This is _lots_ faster than using ldiv.
|
|
do
|
|
*--__front = __table[__v % 10];
|
|
while ((__v /= 10) != 0);
|
|
__sign_end = __front;
|
|
// NB: ios_base:hex || ios_base::oct assumed to be unsigned.
|
|
if (__neg || (__flags & ios_base::showpos))
|
|
*--__front = __fmt->_S_literals[__fmt->_S_plus - __neg];
|
|
}
|
|
|
|
// XXX should specialize!
|
|
if (!__fmt->_M_use_grouping && !__io.width())
|
|
return copy(__front, __digits + _M_room, __s);
|
|
|
|
if (!__fmt->_M_use_grouping)
|
|
return __pad_numeric(__s, __flags, __fill, __io.width(0),
|
|
__front, __sign_end, __digits + _M_room);
|
|
|
|
_CharT* __p = __digits;
|
|
while (__front < __sign_end)
|
|
*__p++ = *__front++;
|
|
const char* __gr = __fmt->_M_grouping.data();
|
|
__front = __group_digits(__p, __fmt->_M_thousands_sep, __gr,
|
|
__gr + __fmt->_M_grouping.size(), __sign_end, __digits + _M_room);
|
|
return __pad_numeric(__s, __flags, __fill, __io.width(0),
|
|
__digits, __p, __front);
|
|
}
|
|
|
|
template <typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __io, char_type __fill, long __v) const
|
|
{
|
|
unsigned long __uv = __v;
|
|
bool __neg = false;
|
|
if (__v < 0)
|
|
{
|
|
__neg = true;
|
|
__uv = -__uv;
|
|
}
|
|
return __output_integer(__s, __io, __fill, __neg, __uv);
|
|
}
|
|
|
|
template <typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __io, char_type __fill,
|
|
unsigned long __v) const
|
|
{ return __output_integer(__s, __io, __fill, false, __v); }
|
|
|
|
#ifdef _GLIBCPP_USE_LONG_LONG
|
|
template <typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __b, char_type __fill, long long __v) const
|
|
{
|
|
unsigned long long __uv = __v;
|
|
bool __neg = false;
|
|
if (__v < 0)
|
|
{
|
|
__neg = true;
|
|
__uv = -__uv;
|
|
}
|
|
return __output_integer(__s, __b, __fill, __neg, __uv);
|
|
}
|
|
|
|
template <typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __io, char_type __fill,
|
|
unsigned long long __v) const
|
|
{ return __output_integer(__s, __io, __fill, false, __v); }
|
|
#endif
|
|
|
|
// Generic helper function
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
__output_float(_OutIter __s, ios_base& __io, _CharT __fill,
|
|
const char* __sptr, size_t __slen)
|
|
{
|
|
// XXX Not currently done: non streambuf_iterator
|
|
return __s;
|
|
}
|
|
|
|
// Partial specialization for ostreambuf_iterator.
|
|
template<typename _CharT>
|
|
ostreambuf_iterator<_CharT>
|
|
__output_float(ostreambuf_iterator<_CharT> __s, ios_base& __io,
|
|
_CharT __fill, const char* __sptr, size_t __slen)
|
|
{
|
|
size_t __padding = __io.width() > streamsize(__slen) ?
|
|
__io.width() -__slen : 0;
|
|
locale __loc = __io.getloc();
|
|
ctype<_CharT> const& __ct = use_facet<ctype<_CharT> >(__loc);
|
|
ios_base::fmtflags __adjfield = __io.flags() & ios_base::adjustfield;
|
|
const char* const __eptr = __sptr + __slen;
|
|
// [22.2.2.2.2.19] Table 61
|
|
if (__adjfield == ios_base::internal)
|
|
{
|
|
// [22.2.2.2.2.14]; widen()
|
|
if (__sptr < __eptr && (*__sptr == '+' || *__sptr == '-'))
|
|
{
|
|
__s = __ct.widen(*__sptr);
|
|
++__s;
|
|
++__sptr;
|
|
}
|
|
__s = __pad(__s, __fill, __padding);
|
|
__padding = 0;
|
|
}
|
|
else if (__adjfield != ios_base::left)
|
|
{
|
|
__s = __pad(__s, __fill, __padding);
|
|
__padding = 0;
|
|
}
|
|
// the "C" locale decimal character
|
|
char __decimal_point = *(localeconv()->decimal_point);
|
|
const _Format_cache<_CharT>* __fmt = _Format_cache<_CharT>::_S_get(__io);
|
|
for (; __sptr != __eptr; ++__s, ++__sptr)
|
|
{
|
|
// [22.2.2.2.2.17]; decimal point conversion
|
|
if (*__sptr == __decimal_point)
|
|
__s = __fmt->_M_decimal_point;
|
|
// [22.2.2.2.2.14]; widen()
|
|
else
|
|
__s = __ct.widen(*__sptr);
|
|
}
|
|
// [22.2.2.2.2.19] Table 61
|
|
if (__padding)
|
|
__pad(__s, __fill, __padding);
|
|
__io.width(0);
|
|
return __s;
|
|
}
|
|
|
|
bool
|
|
__build_float_format(ios_base& __io, char* __fptr, char __modifier,
|
|
streamsize __prec);
|
|
|
|
template <typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __io, char_type __fill, double __v) const
|
|
{
|
|
const streamsize __max_prec = numeric_limits<double>::digits10 + 3;
|
|
streamsize __prec = __io.precision();
|
|
// Protect against sprintf() buffer overflows.
|
|
if (__prec > __max_prec)
|
|
__prec = __max_prec;
|
|
// The *2 provides for signs, exp, 'E', and pad.
|
|
char __sbuf[__max_prec*2];
|
|
size_t __slen;
|
|
// Long enough for the max format spec.
|
|
char __fbuf[16];
|
|
if (__build_float_format(__io, __fbuf, 0, __prec))
|
|
__slen = sprintf(__sbuf, __fbuf, __prec, __v);
|
|
else
|
|
__slen = sprintf(__sbuf, __fbuf, __v);
|
|
// [22.2.2.2.2] Stages 2-4.
|
|
return __output_float(__s, __io, __fill, __sbuf, __slen);
|
|
}
|
|
|
|
template <typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __io, char_type __fill,
|
|
long double __v) const
|
|
{
|
|
const streamsize __max_prec = numeric_limits<long double>::digits10 + 3;
|
|
streamsize __prec = __io.precision();
|
|
// Protect against sprintf() buffer overflows.
|
|
if (__prec > __max_prec)
|
|
__prec = __max_prec;
|
|
// The *2 provides for signs, exp, 'E', and pad.
|
|
char __sbuf[__max_prec*2];
|
|
size_t __slen;
|
|
// Long enough for the max format spec.
|
|
char __fbuf[16];
|
|
// 'L' as per [22.2.2.2.2] Table 59
|
|
if (__build_float_format(__io, __fbuf, 'L', __prec))
|
|
__slen = sprintf(__sbuf, __fbuf, __prec, __v);
|
|
else
|
|
__slen = sprintf(__sbuf, __fbuf, __v);
|
|
// [22.2.2.2.2] Stages 2-4
|
|
return __output_float(__s, __io, __fill, __sbuf, __slen);
|
|
}
|
|
|
|
template <typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __io, char_type __fill,
|
|
const void* __v) const
|
|
{
|
|
typedef ios_base::fmtflags fmtflags;
|
|
fmtflags __fmt = __io.flags();
|
|
fmtflags __fmtmask = ~(ios_base::showpos | ios_base::basefield
|
|
| ios_base::uppercase | ios_base::internal);
|
|
__io.flags(__fmt & __fmtmask | (ios_base::hex | ios_base::showbase));
|
|
try {
|
|
_OutIter __s2 = __output_integer(__s, __io, __fill, false,
|
|
reinterpret_cast<unsigned long>(__v));
|
|
__io.flags(__fmt);
|
|
return __s2;
|
|
}
|
|
catch (...) {
|
|
__io.flags(__fmt);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
|
|
// Support for time_get:
|
|
// Note that these partial specializations could, and maybe should,
|
|
// be changed to full specializations (by eliminating the _Dummy
|
|
// argument) and moved to a .cc file.
|
|
template<typename _CharT, typename _Dummy = int>
|
|
struct _Weekdaynames;
|
|
|
|
template<typename _Dummy>
|
|
struct _Weekdaynames<char, _Dummy>
|
|
{ static const char* const _S_names[14]; };
|
|
|
|
template<typename _Dummy>
|
|
const char* const
|
|
_Weekdaynames<char, _Dummy>::_S_names[14] =
|
|
{
|
|
"Sun", "Sunday",
|
|
"Mon", "Monday", "Tue", "Tuesday", "Wed", "Wednesday",
|
|
"Thu", "Thursday", "Fri", "Friday", "Sat", "Saturday"
|
|
};
|
|
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
template<typename _Dummy>
|
|
struct _Weekdaynames<wchar_t, _Dummy>
|
|
{ static const wchar_t* const _S_names[14]; };
|
|
|
|
template<typename _Dummy>
|
|
const wchar_t* const
|
|
_Weekdaynames<wchar_t, _Dummy>::_S_names[14] =
|
|
{
|
|
L"Sun", L"Sunday",
|
|
L"Mon", L"Monday", L"Tue", L"Tuesday", L"Wed", L"Wednesday",
|
|
L"Thu", L"Thursday", L"Fri", L"Friday", L"Sat", L"Saturday"
|
|
};
|
|
#endif
|
|
|
|
template<typename _CharT, typename _Dummy = int>
|
|
struct _Monthnames;
|
|
|
|
template<typename _Dummy>
|
|
struct _Monthnames<char,_Dummy>
|
|
{ static const char* const _S_names[24]; };
|
|
|
|
template<typename _Dummy>
|
|
const char* const
|
|
_Monthnames<char,_Dummy>::_S_names[24] =
|
|
{
|
|
"Jan", "January", "Feb", "February", "Mar", "March",
|
|
"Apr", "April", "May", "May", "Jun", "June",
|
|
"Jul", "July", "Aug", "August", "Sep", "September",
|
|
"Oct", "October", "Nov", "November", "Dec", "December"
|
|
};
|
|
|
|
#ifdef _GLIBCPP_USE_WCHAR_T
|
|
template<typename _Dummy>
|
|
struct _Monthnames<wchar_t, _Dummy>
|
|
{ static const wchar_t* const _S_names[24]; };
|
|
|
|
template<typename _Dummy>
|
|
const wchar_t* const
|
|
_Monthnames<wchar_t,_Dummy>::_S_names[24] =
|
|
{
|
|
L"Jan", L"January", L"Feb", L"February", L"Mar", L"March",
|
|
L"Apr", L"April", L"May", L"May", L"Jun", L"June",
|
|
L"Jul", L"July", L"Aug", L"August", L"Sep", L"September",
|
|
L"Oct", L"October", L"Nov", L"November", L"Dec", L"December"
|
|
};
|
|
#endif
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
time_get<_CharT, _InIter>::
|
|
do_get_weekday(iter_type __s, iter_type __end,
|
|
ios_base& __io, ios_base::iostate& __err, tm* __t) const
|
|
{
|
|
if (!_M_daynames)
|
|
{
|
|
_M_daynames = new basic_string<_CharT>[14];
|
|
for (int __i = 0; __i < 14; ++__i)
|
|
_M_daynames[__i] = _Weekdaynames<_CharT>::_S_names[__i];
|
|
}
|
|
bool __at_eof = false;
|
|
int __remain = 0;
|
|
int __matches[14];
|
|
iter_type __out = __match_parallel(__s, __end, 14, _M_daynames,
|
|
__matches, __remain, __at_eof);
|
|
__err = ios_base::iostate(0);
|
|
if (__at_eof) __err |= __io.eofbit;
|
|
if (__remain == 1 ||
|
|
__remain == 2 && (__matches[0]>>1) == (__matches[1]>>1))
|
|
__t->tm_wday = (__matches[0]>>1);
|
|
else
|
|
__err |= __io.failbit;
|
|
return __out;
|
|
}
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
time_get<_CharT, _InIter>::
|
|
do_get_monthname(iter_type __s, iter_type __end,
|
|
ios_base& __io, ios_base::iostate& __err, tm* __t) const
|
|
{
|
|
if (!_M_monthnames)
|
|
{
|
|
_M_monthnames = new basic_string<_CharT>[24];
|
|
for (int __i = 0; __i < 24; ++__i)
|
|
_M_monthnames[__i] = _Monthnames<_CharT>::_S_names[__i];
|
|
}
|
|
bool __at_eof = false;
|
|
int __remain = 0;
|
|
int __matches[24];
|
|
iter_type __out = __match_parallel( __s, __end, 24, _M_monthnames,
|
|
__matches, __remain, __at_eof);
|
|
__err = ios_base::iostate(0);
|
|
if (__at_eof) __err |= __io.eofbit;
|
|
if (__remain == 1 ||
|
|
__remain == 2 && (__matches[0]>>1) == (__matches[1]>>1))
|
|
__t->tm_mon = (__matches[0]>>1);
|
|
else
|
|
__err |= __io.failbit;
|
|
return __out;
|
|
}
|
|
} // std::
|
|
|
|
#endif /* _CPP_BITS_LOCFACETS_TCC */
|
|
|
|
// Local Variables:
|
|
// mode:c++
|
|
// End:
|