1361 lines
38 KiB
C++
1361 lines
38 KiB
C++
// Locale support -*- C++ -*-
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// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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// 2006, 2007, 2008, 2009, 2010
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// 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 3, 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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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file bits/locale_facets.tcc
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* This is an internal header file, included by other library headers.
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* Do not attempt to use it directly. @headername{locale}
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*/
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#ifndef _LOCALE_FACETS_TCC
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#define _LOCALE_FACETS_TCC 1
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#pragma GCC system_header
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_GLIBCXX_BEGIN_NAMESPACE(std)
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// Routine to access a cache for the facet. If the cache didn't
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// exist before, it gets constructed on the fly.
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template<typename _Facet>
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struct __use_cache
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{
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const _Facet*
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operator() (const locale& __loc) const;
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};
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// Specializations.
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template<typename _CharT>
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struct __use_cache<__numpunct_cache<_CharT> >
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{
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const __numpunct_cache<_CharT>*
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operator() (const locale& __loc) const
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{
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const size_t __i = numpunct<_CharT>::id._M_id();
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const locale::facet** __caches = __loc._M_impl->_M_caches;
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if (!__caches[__i])
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{
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__numpunct_cache<_CharT>* __tmp = 0;
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__try
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{
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__tmp = new __numpunct_cache<_CharT>;
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__tmp->_M_cache(__loc);
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}
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__catch(...)
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{
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delete __tmp;
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__throw_exception_again;
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}
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__loc._M_impl->_M_install_cache(__tmp, __i);
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}
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return static_cast<const __numpunct_cache<_CharT>*>(__caches[__i]);
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}
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};
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template<typename _CharT>
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void
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__numpunct_cache<_CharT>::_M_cache(const locale& __loc)
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{
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_M_allocated = true;
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const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc);
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char* __grouping = 0;
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_CharT* __truename = 0;
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_CharT* __falsename = 0;
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__try
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{
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_M_grouping_size = __np.grouping().size();
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__grouping = new char[_M_grouping_size];
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__np.grouping().copy(__grouping, _M_grouping_size);
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_M_grouping = __grouping;
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_M_use_grouping = (_M_grouping_size
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&& static_cast<signed char>(_M_grouping[0]) > 0
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&& (_M_grouping[0]
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!= __gnu_cxx::__numeric_traits<char>::__max));
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_M_truename_size = __np.truename().size();
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__truename = new _CharT[_M_truename_size];
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__np.truename().copy(__truename, _M_truename_size);
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_M_truename = __truename;
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_M_falsename_size = __np.falsename().size();
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__falsename = new _CharT[_M_falsename_size];
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__np.falsename().copy(__falsename, _M_falsename_size);
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_M_falsename = __falsename;
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_M_decimal_point = __np.decimal_point();
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_M_thousands_sep = __np.thousands_sep();
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const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__loc);
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__ct.widen(__num_base::_S_atoms_out,
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__num_base::_S_atoms_out
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+ __num_base::_S_oend, _M_atoms_out);
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__ct.widen(__num_base::_S_atoms_in,
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__num_base::_S_atoms_in
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+ __num_base::_S_iend, _M_atoms_in);
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}
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__catch(...)
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{
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delete [] __grouping;
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delete [] __truename;
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delete [] __falsename;
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__throw_exception_again;
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}
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}
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// Used by both numeric and monetary facets.
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// Check to make sure that the __grouping_tmp string constructed in
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// money_get or num_get matches the canonical grouping for a given
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// locale.
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// __grouping_tmp is parsed L to R
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// 1,222,444 == __grouping_tmp of "\1\3\3"
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// __grouping is parsed R to L
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// 1,222,444 == __grouping of "\3" == "\3\3\3"
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_GLIBCXX_PURE bool
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__verify_grouping(const char* __grouping, size_t __grouping_size,
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const string& __grouping_tmp) throw ();
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_GLIBCXX_BEGIN_LDBL_NAMESPACE
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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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_M_extract_float(_InIter __beg, _InIter __end, ios_base& __io,
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ios_base::iostate& __err, string& __xtrc) const
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{
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typedef char_traits<_CharT> __traits_type;
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typedef __numpunct_cache<_CharT> __cache_type;
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__use_cache<__cache_type> __uc;
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const locale& __loc = __io._M_getloc();
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const __cache_type* __lc = __uc(__loc);
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const _CharT* __lit = __lc->_M_atoms_in;
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char_type __c = char_type();
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// True if __beg becomes equal to __end.
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bool __testeof = __beg == __end;
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// First check for sign.
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if (!__testeof)
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{
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__c = *__beg;
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const bool __plus = __c == __lit[__num_base::_S_iplus];
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if ((__plus || __c == __lit[__num_base::_S_iminus])
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&& !(__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
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&& !(__c == __lc->_M_decimal_point))
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{
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__xtrc += __plus ? '+' : '-';
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if (++__beg != __end)
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__c = *__beg;
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else
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__testeof = true;
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}
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}
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// Next, look for leading zeros.
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bool __found_mantissa = false;
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int __sep_pos = 0;
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while (!__testeof)
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{
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if ((__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
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|| __c == __lc->_M_decimal_point)
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break;
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else if (__c == __lit[__num_base::_S_izero])
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{
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if (!__found_mantissa)
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{
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__xtrc += '0';
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__found_mantissa = true;
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}
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++__sep_pos;
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if (++__beg != __end)
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__c = *__beg;
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else
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__testeof = true;
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}
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else
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break;
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}
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// Only need acceptable digits for floating point numbers.
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bool __found_dec = false;
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bool __found_sci = false;
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string __found_grouping;
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if (__lc->_M_use_grouping)
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__found_grouping.reserve(32);
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const char_type* __lit_zero = __lit + __num_base::_S_izero;
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if (!__lc->_M_allocated)
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// "C" locale
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while (!__testeof)
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{
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const int __digit = _M_find(__lit_zero, 10, __c);
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if (__digit != -1)
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{
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__xtrc += '0' + __digit;
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__found_mantissa = true;
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}
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else if (__c == __lc->_M_decimal_point
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&& !__found_dec && !__found_sci)
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{
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__xtrc += '.';
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__found_dec = true;
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}
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else if ((__c == __lit[__num_base::_S_ie]
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|| __c == __lit[__num_base::_S_iE])
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&& !__found_sci && __found_mantissa)
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{
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// Scientific notation.
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__xtrc += 'e';
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__found_sci = true;
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// Remove optional plus or minus sign, if they exist.
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if (++__beg != __end)
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{
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__c = *__beg;
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const bool __plus = __c == __lit[__num_base::_S_iplus];
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if (__plus || __c == __lit[__num_base::_S_iminus])
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__xtrc += __plus ? '+' : '-';
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else
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continue;
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}
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else
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{
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__testeof = true;
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break;
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}
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}
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else
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break;
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if (++__beg != __end)
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__c = *__beg;
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else
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__testeof = true;
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}
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else
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while (!__testeof)
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{
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// According to 22.2.2.1.2, p8-9, first look for thousands_sep
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// and decimal_point.
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if (__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
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{
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if (!__found_dec && !__found_sci)
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{
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// NB: Thousands separator at the beginning of a string
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// is a no-no, as is two consecutive thousands separators.
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if (__sep_pos)
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{
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__found_grouping += static_cast<char>(__sep_pos);
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__sep_pos = 0;
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}
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else
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{
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// NB: __convert_to_v will not assign __v and will
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// set the failbit.
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__xtrc.clear();
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break;
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}
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}
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else
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break;
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}
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else if (__c == __lc->_M_decimal_point)
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{
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if (!__found_dec && !__found_sci)
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{
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// If no grouping chars are seen, no grouping check
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// is applied. Therefore __found_grouping is adjusted
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// only if decimal_point comes after some thousands_sep.
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if (__found_grouping.size())
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__found_grouping += static_cast<char>(__sep_pos);
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__xtrc += '.';
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__found_dec = true;
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}
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else
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break;
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}
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else
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{
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const char_type* __q =
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__traits_type::find(__lit_zero, 10, __c);
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if (__q)
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{
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__xtrc += '0' + (__q - __lit_zero);
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__found_mantissa = true;
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++__sep_pos;
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}
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else if ((__c == __lit[__num_base::_S_ie]
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|| __c == __lit[__num_base::_S_iE])
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&& !__found_sci && __found_mantissa)
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{
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// Scientific notation.
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if (__found_grouping.size() && !__found_dec)
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__found_grouping += static_cast<char>(__sep_pos);
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__xtrc += 'e';
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__found_sci = true;
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// Remove optional plus or minus sign, if they exist.
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if (++__beg != __end)
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{
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__c = *__beg;
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const bool __plus = __c == __lit[__num_base::_S_iplus];
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if ((__plus || __c == __lit[__num_base::_S_iminus])
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&& !(__lc->_M_use_grouping
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&& __c == __lc->_M_thousands_sep)
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&& !(__c == __lc->_M_decimal_point))
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__xtrc += __plus ? '+' : '-';
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else
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continue;
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}
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else
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{
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__testeof = true;
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break;
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}
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}
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else
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break;
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}
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if (++__beg != __end)
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__c = *__beg;
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else
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__testeof = true;
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}
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// Digit grouping is checked. If grouping and found_grouping don't
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// match, then get very very upset, and set failbit.
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if (__found_grouping.size())
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{
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// Add the ending grouping if a decimal or 'e'/'E' wasn't found.
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if (!__found_dec && !__found_sci)
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__found_grouping += static_cast<char>(__sep_pos);
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if (!std::__verify_grouping(__lc->_M_grouping,
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__lc->_M_grouping_size,
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__found_grouping))
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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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template<typename _CharT, typename _InIter>
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template<typename _ValueT>
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_InIter
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num_get<_CharT, _InIter>::
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_M_extract_int(_InIter __beg, _InIter __end, ios_base& __io,
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ios_base::iostate& __err, _ValueT& __v) const
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{
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typedef char_traits<_CharT> __traits_type;
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using __gnu_cxx::__add_unsigned;
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typedef typename __add_unsigned<_ValueT>::__type __unsigned_type;
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typedef __numpunct_cache<_CharT> __cache_type;
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__use_cache<__cache_type> __uc;
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const locale& __loc = __io._M_getloc();
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const __cache_type* __lc = __uc(__loc);
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const _CharT* __lit = __lc->_M_atoms_in;
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char_type __c = char_type();
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// NB: Iff __basefield == 0, __base can change based on contents.
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const ios_base::fmtflags __basefield = __io.flags()
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& ios_base::basefield;
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const bool __oct = __basefield == ios_base::oct;
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int __base = __oct ? 8 : (__basefield == ios_base::hex ? 16 : 10);
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// True if __beg becomes equal to __end.
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bool __testeof = __beg == __end;
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// First check for sign.
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bool __negative = false;
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if (!__testeof)
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{
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__c = *__beg;
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__negative = __c == __lit[__num_base::_S_iminus];
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if ((__negative || __c == __lit[__num_base::_S_iplus])
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&& !(__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
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&& !(__c == __lc->_M_decimal_point))
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{
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if (++__beg != __end)
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__c = *__beg;
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else
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__testeof = true;
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}
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}
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// Next, look for leading zeros and check required digits
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// for base formats.
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bool __found_zero = false;
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int __sep_pos = 0;
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while (!__testeof)
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{
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if ((__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
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|| __c == __lc->_M_decimal_point)
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break;
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else if (__c == __lit[__num_base::_S_izero]
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&& (!__found_zero || __base == 10))
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{
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__found_zero = true;
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++__sep_pos;
|
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if (__basefield == 0)
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__base = 8;
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if (__base == 8)
|
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__sep_pos = 0;
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}
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else if (__found_zero
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&& (__c == __lit[__num_base::_S_ix]
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|| __c == __lit[__num_base::_S_iX]))
|
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{
|
|
if (__basefield == 0)
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__base = 16;
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if (__base == 16)
|
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{
|
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__found_zero = false;
|
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__sep_pos = 0;
|
|
}
|
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else
|
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break;
|
|
}
|
|
else
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break;
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|
|
|
if (++__beg != __end)
|
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{
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__c = *__beg;
|
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if (!__found_zero)
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break;
|
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}
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else
|
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__testeof = true;
|
|
}
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|
|
|
// At this point, base is determined. If not hex, only allow
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// base digits as valid input.
|
|
const size_t __len = (__base == 16 ? __num_base::_S_iend
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- __num_base::_S_izero : __base);
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|
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// Extract.
|
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string __found_grouping;
|
|
if (__lc->_M_use_grouping)
|
|
__found_grouping.reserve(32);
|
|
bool __testfail = false;
|
|
bool __testoverflow = false;
|
|
const __unsigned_type __max =
|
|
(__negative && __gnu_cxx::__numeric_traits<_ValueT>::__is_signed)
|
|
? -__gnu_cxx::__numeric_traits<_ValueT>::__min
|
|
: __gnu_cxx::__numeric_traits<_ValueT>::__max;
|
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const __unsigned_type __smax = __max / __base;
|
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__unsigned_type __result = 0;
|
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int __digit = 0;
|
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const char_type* __lit_zero = __lit + __num_base::_S_izero;
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|
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if (!__lc->_M_allocated)
|
|
// "C" locale
|
|
while (!__testeof)
|
|
{
|
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__digit = _M_find(__lit_zero, __len, __c);
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if (__digit == -1)
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break;
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if (__result > __smax)
|
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__testoverflow = true;
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else
|
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{
|
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__result *= __base;
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__testoverflow |= __result > __max - __digit;
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__result += __digit;
|
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++__sep_pos;
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}
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|
|
|
if (++__beg != __end)
|
|
__c = *__beg;
|
|
else
|
|
__testeof = true;
|
|
}
|
|
else
|
|
while (!__testeof)
|
|
{
|
|
// According to 22.2.2.1.2, p8-9, first look for thousands_sep
|
|
// and decimal_point.
|
|
if (__lc->_M_use_grouping && __c == __lc->_M_thousands_sep)
|
|
{
|
|
// NB: Thousands separator at the beginning of a string
|
|
// is a no-no, as is two consecutive thousands separators.
|
|
if (__sep_pos)
|
|
{
|
|
__found_grouping += static_cast<char>(__sep_pos);
|
|
__sep_pos = 0;
|
|
}
|
|
else
|
|
{
|
|
__testfail = true;
|
|
break;
|
|
}
|
|
}
|
|
else if (__c == __lc->_M_decimal_point)
|
|
break;
|
|
else
|
|
{
|
|
const char_type* __q =
|
|
__traits_type::find(__lit_zero, __len, __c);
|
|
if (!__q)
|
|
break;
|
|
|
|
__digit = __q - __lit_zero;
|
|
if (__digit > 15)
|
|
__digit -= 6;
|
|
if (__result > __smax)
|
|
__testoverflow = true;
|
|
else
|
|
{
|
|
__result *= __base;
|
|
__testoverflow |= __result > __max - __digit;
|
|
__result += __digit;
|
|
++__sep_pos;
|
|
}
|
|
}
|
|
|
|
if (++__beg != __end)
|
|
__c = *__beg;
|
|
else
|
|
__testeof = true;
|
|
}
|
|
|
|
// Digit grouping is checked. If grouping and found_grouping don't
|
|
// match, then get very very upset, and set failbit.
|
|
if (__found_grouping.size())
|
|
{
|
|
// Add the ending grouping.
|
|
__found_grouping += static_cast<char>(__sep_pos);
|
|
|
|
if (!std::__verify_grouping(__lc->_M_grouping,
|
|
__lc->_M_grouping_size,
|
|
__found_grouping))
|
|
__err = ios_base::failbit;
|
|
}
|
|
|
|
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
|
// 23. Num_get overflow result.
|
|
if ((!__sep_pos && !__found_zero && !__found_grouping.size())
|
|
|| __testfail)
|
|
{
|
|
__v = 0;
|
|
__err = ios_base::failbit;
|
|
}
|
|
else if (__testoverflow)
|
|
{
|
|
if (__negative
|
|
&& __gnu_cxx::__numeric_traits<_ValueT>::__is_signed)
|
|
__v = __gnu_cxx::__numeric_traits<_ValueT>::__min;
|
|
else
|
|
__v = __gnu_cxx::__numeric_traits<_ValueT>::__max;
|
|
__err = ios_base::failbit;
|
|
}
|
|
else
|
|
__v = __negative ? -__result : __result;
|
|
|
|
if (__testeof)
|
|
__err |= ios_base::eofbit;
|
|
return __beg;
|
|
}
|
|
|
|
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
|
// 17. Bad bool parsing
|
|
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, bool& __v) const
|
|
{
|
|
if (!(__io.flags() & ios_base::boolalpha))
|
|
{
|
|
// Parse bool values as long.
|
|
// NB: We can't just call do_get(long) here, as it might
|
|
// refer to a derived class.
|
|
long __l = -1;
|
|
__beg = _M_extract_int(__beg, __end, __io, __err, __l);
|
|
if (__l == 0 || __l == 1)
|
|
__v = bool(__l);
|
|
else
|
|
{
|
|
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
|
// 23. Num_get overflow result.
|
|
__v = true;
|
|
__err = ios_base::failbit;
|
|
if (__beg == __end)
|
|
__err |= ios_base::eofbit;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Parse bool values as alphanumeric.
|
|
typedef __numpunct_cache<_CharT> __cache_type;
|
|
__use_cache<__cache_type> __uc;
|
|
const locale& __loc = __io._M_getloc();
|
|
const __cache_type* __lc = __uc(__loc);
|
|
|
|
bool __testf = true;
|
|
bool __testt = true;
|
|
bool __donef = __lc->_M_falsename_size == 0;
|
|
bool __donet = __lc->_M_truename_size == 0;
|
|
bool __testeof = false;
|
|
size_t __n = 0;
|
|
while (!__donef || !__donet)
|
|
{
|
|
if (__beg == __end)
|
|
{
|
|
__testeof = true;
|
|
break;
|
|
}
|
|
|
|
const char_type __c = *__beg;
|
|
|
|
if (!__donef)
|
|
__testf = __c == __lc->_M_falsename[__n];
|
|
|
|
if (!__testf && __donet)
|
|
break;
|
|
|
|
if (!__donet)
|
|
__testt = __c == __lc->_M_truename[__n];
|
|
|
|
if (!__testt && __donef)
|
|
break;
|
|
|
|
if (!__testt && !__testf)
|
|
break;
|
|
|
|
++__n;
|
|
++__beg;
|
|
|
|
__donef = !__testf || __n >= __lc->_M_falsename_size;
|
|
__donet = !__testt || __n >= __lc->_M_truename_size;
|
|
}
|
|
if (__testf && __n == __lc->_M_falsename_size && __n)
|
|
{
|
|
__v = false;
|
|
if (__testt && __n == __lc->_M_truename_size)
|
|
__err = ios_base::failbit;
|
|
else
|
|
__err = __testeof ? ios_base::eofbit : ios_base::goodbit;
|
|
}
|
|
else if (__testt && __n == __lc->_M_truename_size && __n)
|
|
{
|
|
__v = true;
|
|
__err = __testeof ? ios_base::eofbit : ios_base::goodbit;
|
|
}
|
|
else
|
|
{
|
|
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
|
// 23. Num_get overflow result.
|
|
__v = false;
|
|
__err = ios_base::failbit;
|
|
if (__testeof)
|
|
__err |= ios_base::eofbit;
|
|
}
|
|
}
|
|
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, float& __v) const
|
|
{
|
|
string __xtrc;
|
|
__xtrc.reserve(32);
|
|
__beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
|
|
std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
|
|
if (__beg == __end)
|
|
__err |= ios_base::eofbit;
|
|
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
|
|
{
|
|
string __xtrc;
|
|
__xtrc.reserve(32);
|
|
__beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
|
|
std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
|
|
if (__beg == __end)
|
|
__err |= ios_base::eofbit;
|
|
return __beg;
|
|
}
|
|
|
|
#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
|
|
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
|
|
{
|
|
string __xtrc;
|
|
__xtrc.reserve(32);
|
|
__beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
|
|
std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
|
|
if (__beg == __end)
|
|
__err |= ios_base::eofbit;
|
|
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, long double& __v) const
|
|
{
|
|
string __xtrc;
|
|
__xtrc.reserve(32);
|
|
__beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
|
|
std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
|
|
if (__beg == __end)
|
|
__err |= ios_base::eofbit;
|
|
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, void*& __v) const
|
|
{
|
|
// Prepare for hex formatted input.
|
|
typedef ios_base::fmtflags fmtflags;
|
|
const fmtflags __fmt = __io.flags();
|
|
__io.flags((__fmt & ~ios_base::basefield) | ios_base::hex);
|
|
|
|
typedef __gnu_cxx::__conditional_type<(sizeof(void*)
|
|
<= sizeof(unsigned long)),
|
|
unsigned long, unsigned long long>::__type _UIntPtrType;
|
|
|
|
_UIntPtrType __ul;
|
|
__beg = _M_extract_int(__beg, __end, __io, __err, __ul);
|
|
|
|
// Reset from hex formatted input.
|
|
__io.flags(__fmt);
|
|
|
|
__v = reinterpret_cast<void*>(__ul);
|
|
return __beg;
|
|
}
|
|
|
|
// For use by integer and floating-point types after they have been
|
|
// converted into a char_type string.
|
|
template<typename _CharT, typename _OutIter>
|
|
void
|
|
num_put<_CharT, _OutIter>::
|
|
_M_pad(_CharT __fill, streamsize __w, ios_base& __io,
|
|
_CharT* __new, const _CharT* __cs, int& __len) const
|
|
{
|
|
// [22.2.2.2.2] Stage 3.
|
|
// If necessary, pad.
|
|
__pad<_CharT, char_traits<_CharT> >::_S_pad(__io, __fill, __new,
|
|
__cs, __w, __len);
|
|
__len = static_cast<int>(__w);
|
|
}
|
|
|
|
_GLIBCXX_END_LDBL_NAMESPACE
|
|
|
|
template<typename _CharT, typename _ValueT>
|
|
int
|
|
__int_to_char(_CharT* __bufend, _ValueT __v, const _CharT* __lit,
|
|
ios_base::fmtflags __flags, bool __dec)
|
|
{
|
|
_CharT* __buf = __bufend;
|
|
if (__builtin_expect(__dec, true))
|
|
{
|
|
// Decimal.
|
|
do
|
|
{
|
|
*--__buf = __lit[(__v % 10) + __num_base::_S_odigits];
|
|
__v /= 10;
|
|
}
|
|
while (__v != 0);
|
|
}
|
|
else if ((__flags & ios_base::basefield) == ios_base::oct)
|
|
{
|
|
// Octal.
|
|
do
|
|
{
|
|
*--__buf = __lit[(__v & 0x7) + __num_base::_S_odigits];
|
|
__v >>= 3;
|
|
}
|
|
while (__v != 0);
|
|
}
|
|
else
|
|
{
|
|
// Hex.
|
|
const bool __uppercase = __flags & ios_base::uppercase;
|
|
const int __case_offset = __uppercase ? __num_base::_S_oudigits
|
|
: __num_base::_S_odigits;
|
|
do
|
|
{
|
|
*--__buf = __lit[(__v & 0xf) + __case_offset];
|
|
__v >>= 4;
|
|
}
|
|
while (__v != 0);
|
|
}
|
|
return __bufend - __buf;
|
|
}
|
|
|
|
_GLIBCXX_BEGIN_LDBL_NAMESPACE
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
void
|
|
num_put<_CharT, _OutIter>::
|
|
_M_group_int(const char* __grouping, size_t __grouping_size, _CharT __sep,
|
|
ios_base&, _CharT* __new, _CharT* __cs, int& __len) const
|
|
{
|
|
_CharT* __p = std::__add_grouping(__new, __sep, __grouping,
|
|
__grouping_size, __cs, __cs + __len);
|
|
__len = __p - __new;
|
|
}
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
template<typename _ValueT>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
_M_insert_int(_OutIter __s, ios_base& __io, _CharT __fill,
|
|
_ValueT __v) const
|
|
{
|
|
using __gnu_cxx::__add_unsigned;
|
|
typedef typename __add_unsigned<_ValueT>::__type __unsigned_type;
|
|
typedef __numpunct_cache<_CharT> __cache_type;
|
|
__use_cache<__cache_type> __uc;
|
|
const locale& __loc = __io._M_getloc();
|
|
const __cache_type* __lc = __uc(__loc);
|
|
const _CharT* __lit = __lc->_M_atoms_out;
|
|
const ios_base::fmtflags __flags = __io.flags();
|
|
|
|
// Long enough to hold hex, dec, and octal representations.
|
|
const int __ilen = 5 * sizeof(_ValueT);
|
|
_CharT* __cs = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
|
|
* __ilen));
|
|
|
|
// [22.2.2.2.2] Stage 1, numeric conversion to character.
|
|
// Result is returned right-justified in the buffer.
|
|
const ios_base::fmtflags __basefield = __flags & ios_base::basefield;
|
|
const bool __dec = (__basefield != ios_base::oct
|
|
&& __basefield != ios_base::hex);
|
|
const __unsigned_type __u = ((__v > 0 || !__dec)
|
|
? __unsigned_type(__v)
|
|
: -__unsigned_type(__v));
|
|
int __len = __int_to_char(__cs + __ilen, __u, __lit, __flags, __dec);
|
|
__cs += __ilen - __len;
|
|
|
|
// Add grouping, if necessary.
|
|
if (__lc->_M_use_grouping)
|
|
{
|
|
// Grouping can add (almost) as many separators as the number
|
|
// of digits + space is reserved for numeric base or sign.
|
|
_CharT* __cs2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
|
|
* (__len + 1)
|
|
* 2));
|
|
_M_group_int(__lc->_M_grouping, __lc->_M_grouping_size,
|
|
__lc->_M_thousands_sep, __io, __cs2 + 2, __cs, __len);
|
|
__cs = __cs2 + 2;
|
|
}
|
|
|
|
// Complete Stage 1, prepend numeric base or sign.
|
|
if (__builtin_expect(__dec, true))
|
|
{
|
|
// Decimal.
|
|
if (__v >= 0)
|
|
{
|
|
if (bool(__flags & ios_base::showpos)
|
|
&& __gnu_cxx::__numeric_traits<_ValueT>::__is_signed)
|
|
*--__cs = __lit[__num_base::_S_oplus], ++__len;
|
|
}
|
|
else
|
|
*--__cs = __lit[__num_base::_S_ominus], ++__len;
|
|
}
|
|
else if (bool(__flags & ios_base::showbase) && __v)
|
|
{
|
|
if (__basefield == ios_base::oct)
|
|
*--__cs = __lit[__num_base::_S_odigits], ++__len;
|
|
else
|
|
{
|
|
// 'x' or 'X'
|
|
const bool __uppercase = __flags & ios_base::uppercase;
|
|
*--__cs = __lit[__num_base::_S_ox + __uppercase];
|
|
// '0'
|
|
*--__cs = __lit[__num_base::_S_odigits];
|
|
__len += 2;
|
|
}
|
|
}
|
|
|
|
// Pad.
|
|
const streamsize __w = __io.width();
|
|
if (__w > static_cast<streamsize>(__len))
|
|
{
|
|
_CharT* __cs3 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
|
|
* __w));
|
|
_M_pad(__fill, __w, __io, __cs3, __cs, __len);
|
|
__cs = __cs3;
|
|
}
|
|
__io.width(0);
|
|
|
|
// [22.2.2.2.2] Stage 4.
|
|
// Write resulting, fully-formatted string to output iterator.
|
|
return std::__write(__s, __cs, __len);
|
|
}
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
void
|
|
num_put<_CharT, _OutIter>::
|
|
_M_group_float(const char* __grouping, size_t __grouping_size,
|
|
_CharT __sep, const _CharT* __p, _CharT* __new,
|
|
_CharT* __cs, int& __len) const
|
|
{
|
|
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
|
// 282. What types does numpunct grouping refer to?
|
|
// Add grouping, if necessary.
|
|
const int __declen = __p ? __p - __cs : __len;
|
|
_CharT* __p2 = std::__add_grouping(__new, __sep, __grouping,
|
|
__grouping_size,
|
|
__cs, __cs + __declen);
|
|
|
|
// Tack on decimal part.
|
|
int __newlen = __p2 - __new;
|
|
if (__p)
|
|
{
|
|
char_traits<_CharT>::copy(__p2, __p, __len - __declen);
|
|
__newlen += __len - __declen;
|
|
}
|
|
__len = __newlen;
|
|
}
|
|
|
|
// The following code uses vsnprintf (or vsprintf(), when
|
|
// _GLIBCXX_USE_C99 is not defined) to convert floating point values
|
|
// for insertion into a stream. An optimization would be to replace
|
|
// them with code that works directly on a wide buffer and then use
|
|
// __pad to do the padding. It would be good to replace them anyway
|
|
// to gain back the efficiency that C++ provides by knowing up front
|
|
// the type of the values to insert. Also, sprintf is dangerous
|
|
// since may lead to accidental buffer overruns. This
|
|
// implementation follows the C++ standard fairly directly as
|
|
// outlined in 22.2.2.2 [lib.locale.num.put]
|
|
template<typename _CharT, typename _OutIter>
|
|
template<typename _ValueT>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
_M_insert_float(_OutIter __s, ios_base& __io, _CharT __fill, char __mod,
|
|
_ValueT __v) const
|
|
{
|
|
typedef __numpunct_cache<_CharT> __cache_type;
|
|
__use_cache<__cache_type> __uc;
|
|
const locale& __loc = __io._M_getloc();
|
|
const __cache_type* __lc = __uc(__loc);
|
|
|
|
// Use default precision if out of range.
|
|
const streamsize __prec = __io.precision() < 0 ? 6 : __io.precision();
|
|
|
|
const int __max_digits =
|
|
__gnu_cxx::__numeric_traits<_ValueT>::__digits10;
|
|
|
|
// [22.2.2.2.2] Stage 1, numeric conversion to character.
|
|
int __len;
|
|
// Long enough for the max format spec.
|
|
char __fbuf[16];
|
|
__num_base::_S_format_float(__io, __fbuf, __mod);
|
|
|
|
#ifdef _GLIBCXX_USE_C99
|
|
// First try a buffer perhaps big enough (most probably sufficient
|
|
// for non-ios_base::fixed outputs)
|
|
int __cs_size = __max_digits * 3;
|
|
char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
|
|
__len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
|
|
__fbuf, __prec, __v);
|
|
|
|
// If the buffer was not large enough, try again with the correct size.
|
|
if (__len >= __cs_size)
|
|
{
|
|
__cs_size = __len + 1;
|
|
__cs = static_cast<char*>(__builtin_alloca(__cs_size));
|
|
__len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
|
|
__fbuf, __prec, __v);
|
|
}
|
|
#else
|
|
// Consider the possibility of long ios_base::fixed outputs
|
|
const bool __fixed = __io.flags() & ios_base::fixed;
|
|
const int __max_exp =
|
|
__gnu_cxx::__numeric_traits<_ValueT>::__max_exponent10;
|
|
|
|
// The size of the output string is computed as follows.
|
|
// ios_base::fixed outputs may need up to __max_exp + 1 chars
|
|
// for the integer part + __prec chars for the fractional part
|
|
// + 3 chars for sign, decimal point, '\0'. On the other hand,
|
|
// for non-fixed outputs __max_digits * 2 + __prec chars are
|
|
// largely sufficient.
|
|
const int __cs_size = __fixed ? __max_exp + __prec + 4
|
|
: __max_digits * 2 + __prec;
|
|
char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
|
|
__len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, __fbuf,
|
|
__prec, __v);
|
|
#endif
|
|
|
|
// [22.2.2.2.2] Stage 2, convert to char_type, using correct
|
|
// numpunct.decimal_point() values for '.' and adding grouping.
|
|
const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
|
|
_CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
|
|
* __len));
|
|
__ctype.widen(__cs, __cs + __len, __ws);
|
|
|
|
// Replace decimal point.
|
|
_CharT* __wp = 0;
|
|
const char* __p = char_traits<char>::find(__cs, __len, '.');
|
|
if (__p)
|
|
{
|
|
__wp = __ws + (__p - __cs);
|
|
*__wp = __lc->_M_decimal_point;
|
|
}
|
|
|
|
// Add grouping, if necessary.
|
|
// N.B. Make sure to not group things like 2e20, i.e., no decimal
|
|
// point, scientific notation.
|
|
if (__lc->_M_use_grouping
|
|
&& (__wp || __len < 3 || (__cs[1] <= '9' && __cs[2] <= '9'
|
|
&& __cs[1] >= '0' && __cs[2] >= '0')))
|
|
{
|
|
// Grouping can add (almost) as many separators as the
|
|
// number of digits, but no more.
|
|
_CharT* __ws2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
|
|
* __len * 2));
|
|
|
|
streamsize __off = 0;
|
|
if (__cs[0] == '-' || __cs[0] == '+')
|
|
{
|
|
__off = 1;
|
|
__ws2[0] = __ws[0];
|
|
__len -= 1;
|
|
}
|
|
|
|
_M_group_float(__lc->_M_grouping, __lc->_M_grouping_size,
|
|
__lc->_M_thousands_sep, __wp, __ws2 + __off,
|
|
__ws + __off, __len);
|
|
__len += __off;
|
|
|
|
__ws = __ws2;
|
|
}
|
|
|
|
// Pad.
|
|
const streamsize __w = __io.width();
|
|
if (__w > static_cast<streamsize>(__len))
|
|
{
|
|
_CharT* __ws3 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
|
|
* __w));
|
|
_M_pad(__fill, __w, __io, __ws3, __ws, __len);
|
|
__ws = __ws3;
|
|
}
|
|
__io.width(0);
|
|
|
|
// [22.2.2.2.2] Stage 4.
|
|
// Write resulting, fully-formatted string to output iterator.
|
|
return std::__write(__s, __ws, __len);
|
|
}
|
|
|
|
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 ios_base::fmtflags __flags = __io.flags();
|
|
if ((__flags & ios_base::boolalpha) == 0)
|
|
{
|
|
const long __l = __v;
|
|
__s = _M_insert_int(__s, __io, __fill, __l);
|
|
}
|
|
else
|
|
{
|
|
typedef __numpunct_cache<_CharT> __cache_type;
|
|
__use_cache<__cache_type> __uc;
|
|
const locale& __loc = __io._M_getloc();
|
|
const __cache_type* __lc = __uc(__loc);
|
|
|
|
const _CharT* __name = __v ? __lc->_M_truename
|
|
: __lc->_M_falsename;
|
|
int __len = __v ? __lc->_M_truename_size
|
|
: __lc->_M_falsename_size;
|
|
|
|
const streamsize __w = __io.width();
|
|
if (__w > static_cast<streamsize>(__len))
|
|
{
|
|
const streamsize __plen = __w - __len;
|
|
_CharT* __ps
|
|
= static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
|
|
* __plen));
|
|
|
|
char_traits<_CharT>::assign(__ps, __plen, __fill);
|
|
__io.width(0);
|
|
|
|
if ((__flags & ios_base::adjustfield) == ios_base::left)
|
|
{
|
|
__s = std::__write(__s, __name, __len);
|
|
__s = std::__write(__s, __ps, __plen);
|
|
}
|
|
else
|
|
{
|
|
__s = std::__write(__s, __ps, __plen);
|
|
__s = std::__write(__s, __name, __len);
|
|
}
|
|
return __s;
|
|
}
|
|
__io.width(0);
|
|
__s = std::__write(__s, __name, __len);
|
|
}
|
|
return __s;
|
|
}
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __io, char_type __fill, double __v) const
|
|
{ return _M_insert_float(__s, __io, __fill, char(), __v); }
|
|
|
|
#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
__do_put(iter_type __s, ios_base& __io, char_type __fill, double __v) const
|
|
{ return _M_insert_float(__s, __io, __fill, char(), __v); }
|
|
#endif
|
|
|
|
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
|
|
{ return _M_insert_float(__s, __io, __fill, 'L', __v); }
|
|
|
|
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
|
|
{
|
|
const ios_base::fmtflags __flags = __io.flags();
|
|
const ios_base::fmtflags __fmt = ~(ios_base::basefield
|
|
| ios_base::uppercase);
|
|
__io.flags((__flags & __fmt) | (ios_base::hex | ios_base::showbase));
|
|
|
|
typedef __gnu_cxx::__conditional_type<(sizeof(const void*)
|
|
<= sizeof(unsigned long)),
|
|
unsigned long, unsigned long long>::__type _UIntPtrType;
|
|
|
|
__s = _M_insert_int(__s, __io, __fill,
|
|
reinterpret_cast<_UIntPtrType>(__v));
|
|
__io.flags(__flags);
|
|
return __s;
|
|
}
|
|
|
|
_GLIBCXX_END_LDBL_NAMESPACE
|
|
|
|
// Construct correctly padded string, as per 22.2.2.2.2
|
|
// Assumes
|
|
// __newlen > __oldlen
|
|
// __news is allocated for __newlen size
|
|
|
|
// NB: Of the two parameters, _CharT can be deduced from the
|
|
// function arguments. The other (_Traits) has to be explicitly specified.
|
|
template<typename _CharT, typename _Traits>
|
|
void
|
|
__pad<_CharT, _Traits>::_S_pad(ios_base& __io, _CharT __fill,
|
|
_CharT* __news, const _CharT* __olds,
|
|
streamsize __newlen, streamsize __oldlen)
|
|
{
|
|
const size_t __plen = static_cast<size_t>(__newlen - __oldlen);
|
|
const ios_base::fmtflags __adjust = __io.flags() & ios_base::adjustfield;
|
|
|
|
// Padding last.
|
|
if (__adjust == ios_base::left)
|
|
{
|
|
_Traits::copy(__news, __olds, __oldlen);
|
|
_Traits::assign(__news + __oldlen, __plen, __fill);
|
|
return;
|
|
}
|
|
|
|
size_t __mod = 0;
|
|
if (__adjust == ios_base::internal)
|
|
{
|
|
// Pad after the sign, if there is one.
|
|
// Pad after 0[xX], if there is one.
|
|
// Who came up with these rules, anyway? Jeeze.
|
|
const locale& __loc = __io._M_getloc();
|
|
const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
|
|
if (__ctype.widen('-') == __olds[0]
|
|
|| __ctype.widen('+') == __olds[0])
|
|
{
|
|
__news[0] = __olds[0];
|
|
__mod = 1;
|
|
++__news;
|
|
}
|
|
else if (__ctype.widen('0') == __olds[0]
|
|
&& __oldlen > 1
|
|
&& (__ctype.widen('x') == __olds[1]
|
|
|| __ctype.widen('X') == __olds[1]))
|
|
{
|
|
__news[0] = __olds[0];
|
|
__news[1] = __olds[1];
|
|
__mod = 2;
|
|
__news += 2;
|
|
}
|
|
// else Padding first.
|
|
}
|
|
_Traits::assign(__news, __plen, __fill);
|
|
_Traits::copy(__news + __plen, __olds + __mod, __oldlen - __mod);
|
|
}
|
|
|
|
template<typename _CharT>
|
|
_CharT*
|
|
__add_grouping(_CharT* __s, _CharT __sep,
|
|
const char* __gbeg, size_t __gsize,
|
|
const _CharT* __first, const _CharT* __last)
|
|
{
|
|
size_t __idx = 0;
|
|
size_t __ctr = 0;
|
|
|
|
while (__last - __first > __gbeg[__idx]
|
|
&& static_cast<signed char>(__gbeg[__idx]) > 0
|
|
&& __gbeg[__idx] != __gnu_cxx::__numeric_traits<char>::__max)
|
|
{
|
|
__last -= __gbeg[__idx];
|
|
__idx < __gsize - 1 ? ++__idx : ++__ctr;
|
|
}
|
|
|
|
while (__first != __last)
|
|
*__s++ = *__first++;
|
|
|
|
while (__ctr--)
|
|
{
|
|
*__s++ = __sep;
|
|
for (char __i = __gbeg[__idx]; __i > 0; --__i)
|
|
*__s++ = *__first++;
|
|
}
|
|
|
|
while (__idx--)
|
|
{
|
|
*__s++ = __sep;
|
|
for (char __i = __gbeg[__idx]; __i > 0; --__i)
|
|
*__s++ = *__first++;
|
|
}
|
|
|
|
return __s;
|
|
}
|
|
|
|
// Inhibit implicit instantiations for required instantiations,
|
|
// which are defined via explicit instantiations elsewhere.
|
|
// NB: This syntax is a GNU extension.
|
|
#if _GLIBCXX_EXTERN_TEMPLATE
|
|
extern template class numpunct<char>;
|
|
extern template class numpunct_byname<char>;
|
|
extern template class _GLIBCXX_LDBL_NAMESPACE num_get<char>;
|
|
extern template class _GLIBCXX_LDBL_NAMESPACE num_put<char>;
|
|
extern template class ctype_byname<char>;
|
|
|
|
extern template
|
|
const ctype<char>&
|
|
use_facet<ctype<char> >(const locale&);
|
|
|
|
extern template
|
|
const numpunct<char>&
|
|
use_facet<numpunct<char> >(const locale&);
|
|
|
|
extern template
|
|
const num_put<char>&
|
|
use_facet<num_put<char> >(const locale&);
|
|
|
|
extern template
|
|
const num_get<char>&
|
|
use_facet<num_get<char> >(const locale&);
|
|
|
|
extern template
|
|
bool
|
|
has_facet<ctype<char> >(const locale&);
|
|
|
|
extern template
|
|
bool
|
|
has_facet<numpunct<char> >(const locale&);
|
|
|
|
extern template
|
|
bool
|
|
has_facet<num_put<char> >(const locale&);
|
|
|
|
extern template
|
|
bool
|
|
has_facet<num_get<char> >(const locale&);
|
|
|
|
#ifdef _GLIBCXX_USE_WCHAR_T
|
|
extern template class numpunct<wchar_t>;
|
|
extern template class numpunct_byname<wchar_t>;
|
|
extern template class _GLIBCXX_LDBL_NAMESPACE num_get<wchar_t>;
|
|
extern template class _GLIBCXX_LDBL_NAMESPACE num_put<wchar_t>;
|
|
extern template class ctype_byname<wchar_t>;
|
|
|
|
extern template
|
|
const ctype<wchar_t>&
|
|
use_facet<ctype<wchar_t> >(const locale&);
|
|
|
|
extern template
|
|
const numpunct<wchar_t>&
|
|
use_facet<numpunct<wchar_t> >(const locale&);
|
|
|
|
extern template
|
|
const num_put<wchar_t>&
|
|
use_facet<num_put<wchar_t> >(const locale&);
|
|
|
|
extern template
|
|
const num_get<wchar_t>&
|
|
use_facet<num_get<wchar_t> >(const locale&);
|
|
|
|
extern template
|
|
bool
|
|
has_facet<ctype<wchar_t> >(const locale&);
|
|
|
|
extern template
|
|
bool
|
|
has_facet<numpunct<wchar_t> >(const locale&);
|
|
|
|
extern template
|
|
bool
|
|
has_facet<num_put<wchar_t> >(const locale&);
|
|
|
|
extern template
|
|
bool
|
|
has_facet<num_get<wchar_t> >(const locale&);
|
|
#endif
|
|
#endif
|
|
|
|
_GLIBCXX_END_NAMESPACE
|
|
|
|
#endif
|