5b1a76105b
2002-01-23 Benjamin Kosnik <bkoz@redhat.com> * include/bits/locale_facets.h (num_get::_M_extract_int): Change prototype. * include/bits/locale_facets.tcc (num_get::_M_extract_int): Remove __max_digits checks, adjust arguments. (num_get::do_get(*)): Changeup. From-SVN: r49154
2034 lines
63 KiB
C++
2034 lines
63 KiB
C++
// Locale support -*- C++ -*-
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// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
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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 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 <cerrno>
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#include <clocale> // For localeconv
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#include <cstdlib> // For strof, strtold
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#include <cmath> // For ceil
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#include <cctype> // For isspace
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#include <limits> // For numeric_limits
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#include <memory> // For auto_ptr
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#include <bits/streambuf_iterator.h>
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#include <vector>
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#include <typeinfo> // For bad_cast.
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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) const
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{
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_Impl* __tmp = new _Impl(*_M_impl, 1);
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__tmp->_M_replace_facet(__other._M_impl, &_Facet::id);
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return locale(__tmp);
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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& __collate = use_facet<__collate_type>(*this);
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return (__collate.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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size_t __i = _Facet::id._M_index;
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locale::_Impl::__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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size_t __i = _Facet::id._M_index;
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locale::_Impl::__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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// Stage 1: Determine a conversion specifier.
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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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const locale __loc = __io.getloc();
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const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
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const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc);
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// First check for sign.
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const char_type __plus = __ctype.widen('+');
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const char_type __minus = __ctype.widen('-');
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int __pos = 0;
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char_type __c = *__beg;
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if ((__c == __plus || __c == __minus) && __beg != __end)
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{
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__xtrc += __ctype.narrow(__c, char());
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++__pos;
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__c = *(++__beg);
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}
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// Next, strip leading zeros.
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const char_type __zero = __ctype.widen(_S_atoms[_M_zero]);
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bool __found_zero = false;
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while (__c == __zero && __beg != __end)
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{
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__c = *(++__beg);
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__found_zero = true;
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}
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if (__found_zero)
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{
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__xtrc += _S_atoms[_M_zero];
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++__pos;
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}
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// Only need acceptable digits for floating point numbers.
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const size_t __len = _M_E - _M_zero + 1;
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char_type __watoms[__len];
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__ctype.widen(_S_atoms, _S_atoms + __len, __watoms);
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bool __found_dec = false;
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bool __found_sci = false;
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const char_type __dec = __np.decimal_point();
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string __found_grouping;
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const string __grouping = __np.grouping();
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bool __check_grouping = __grouping.size();
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int __sep_pos = 0;
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const char_type __sep = __np.thousands_sep();
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while (__beg != __end)
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{
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// Only look in digits.
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typedef char_traits<_CharT> __traits_type;
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const char_type* __p = __traits_type::find(__watoms, 10, __c);
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// NB: strchr returns true for __c == 0x0
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if (__p && __c)
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{
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// Try first for acceptable digit; record it if found.
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++__pos;
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__xtrc += _S_atoms[__p - __watoms];
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++__sep_pos;
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__c = *(++__beg);
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}
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else if (__c == __sep && __check_grouping && !__found_dec)
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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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__c = *(++__beg);
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}
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else
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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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}
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else if (__c == __dec && !__found_dec)
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{
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__found_grouping += static_cast<char>(__sep_pos);
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++__pos;
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__xtrc += '.';
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__c = *(++__beg);
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__found_dec = true;
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}
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else if ((__c == __watoms[_M_e] || __c == __watoms[_M_E])
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&& !__found_sci && __pos)
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{
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// Scientific notation.
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++__pos;
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__xtrc += __ctype.narrow(__c, char());
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__c = *(++__beg);
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// Remove optional plus or minus sign, if they exist.
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if (__c == __plus || __c == __minus)
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{
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++__pos;
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__xtrc += __ctype.narrow(__c, char());
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__c = *(++__beg);
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}
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__found_sci = true;
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}
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else
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// Not a valid input item.
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break;
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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 (__check_grouping && __found_grouping.size())
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{
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// Add the ending grouping if a decimal wasn't found.
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if (!__found_dec)
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__found_grouping += static_cast<char>(__sep_pos);
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if (!__verify_grouping(__grouping, __found_grouping))
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__err |= ios_base::failbit;
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}
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// Finish up
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__xtrc += char();
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if (__beg == __end)
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__err |= ios_base::eofbit;
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return __beg;
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}
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// Stage 1: Determine a conversion specifier.
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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_int(_InIter __beg, _InIter __end, ios_base& __io,
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ios_base::iostate& __err, string& __xtrc, int& __base) const
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{
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const locale __loc = __io.getloc();
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const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
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const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc);
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// NB: Iff __basefield == 0, this can change based on contents.
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ios_base::fmtflags __basefield = __io.flags() & ios_base::basefield;
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if (__basefield == ios_base::oct)
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__base = 8;
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else if (__basefield == ios_base::hex)
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__base = 16;
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else
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__base = 10;
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// First check for sign.
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int __pos = 0;
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char_type __c = *__beg;
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if ((__c == __ctype.widen('+') || __c == __ctype.widen('-'))
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&& __beg != __end)
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{
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__xtrc += __ctype.narrow(__c, char());
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++__pos;
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__c = *(++__beg);
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}
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// Next, strip leading zeros and check required digits for base formats.
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const char_type __zero = __ctype.widen(_S_atoms[_M_zero]);
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const char_type __x = __ctype.widen('x');
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const char_type __X = __ctype.widen('X');
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if (__base == 10)
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{
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bool __found_zero = false;
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while (__c == __zero && __beg != __end)
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{
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__c = *(++__beg);
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__found_zero = true;
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}
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if (__found_zero)
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{
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__xtrc += _S_atoms[_M_zero];
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++__pos;
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if (__basefield == 0)
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{
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if ((__c == __x || __c == __X) && __beg != __end)
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{
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__xtrc += __ctype.narrow(__c, char());
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++__pos;
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__c = *(++__beg);
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__base = 16;
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}
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else
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__base = 8;
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}
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}
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}
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else if (__base == 16)
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{
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if (__c == __zero && __beg != __end)
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{
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__xtrc += _S_atoms[_M_zero];
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++__pos;
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__c = *(++__beg);
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if ((__c == __x || __c == __X) && __beg != __end)
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{
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__xtrc += __ctype.narrow(__c, char());
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++__pos;
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__c = *(++__beg);
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}
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}
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}
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// At this point, base is determined. If not hex, only allow
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// base digits as valid input.
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size_t __len;
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if (__base == 16)
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__len = _M_size;
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else
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__len = __base;
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// Extract.
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char_type __watoms[_M_size];
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__ctype.widen(_S_atoms, _S_atoms + __len, __watoms);
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string __found_grouping;
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const string __grouping = __np.grouping();
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bool __check_grouping = __grouping.size() && __base == 10;
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int __sep_pos = 0;
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const char_type __sep = __np.thousands_sep();
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while (__beg != __end)
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{
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typedef char_traits<_CharT> __traits_type;
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const char_type* __p = __traits_type::find(__watoms, __len, __c);
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// NB: strchr returns true for __c == 0x0
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if (__p && __c)
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{
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// Try first for acceptable digit; record it if found.
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__xtrc += _S_atoms[__p - __watoms];
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++__pos;
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++__sep_pos;
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__c = *(++__beg);
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}
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else if (__c == __sep && __check_grouping)
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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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__c = *(++__beg);
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}
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else
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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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}
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else
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// Not a valid input item.
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break;
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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 (__check_grouping && __found_grouping.size())
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{
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// Add the ending grouping.
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__found_grouping += static_cast<char>(__sep_pos);
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if (!__verify_grouping(__grouping, __found_grouping))
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__err |= ios_base::failbit;
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}
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// Finish up.
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__xtrc += char();
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if (__beg == __end)
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__err |= ios_base::eofbit;
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return __beg;
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}
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#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
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//17. Bad bool parsing
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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 unsigned 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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string __xtrc;
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int __base;
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// According to 18.2.1.2.9, digits10 is "Number of base 10 digits
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// that can be represented without change" so we have to add 1 to it
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// in order to obtain the max number of digits. The same for the
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// other do_get for integral types below.
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__beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
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unsigned long __ul;
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__convert_to_v(__xtrc.c_str(), __ul, __err, _S_c_locale, __base);
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if (!(__err & ios_base::failbit) && __ul <= 1)
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__v = __ul;
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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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locale __loc = __io.getloc();
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const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc);
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const char_type* __true = __np.truename().c_str();
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const char_type* __false = __np.falsename().c_str();
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const size_t __truen = __np.truename().size() - 1;
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const size_t __falsen = __np.falsename().size() - 1;
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for (size_t __n = 0; __beg != __end; ++__n)
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{
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char_type __c = *__beg++;
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bool __testf = __n <= __falsen ? __c == __false[__n] : false;
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bool __testt = __n <= __truen ? __c == __true[__n] : false;
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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 && __n == __falsen)
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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 && __n == __truen)
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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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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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string __xtrc;
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int __base;
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__beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
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__convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale, __base);
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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, unsigned short& __v) const
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{
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string __xtrc;
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int __base;
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__beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
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unsigned long __ul;
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__convert_to_v(__xtrc.c_str(), __ul, __err, _S_c_locale, __base);
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if (!(__err & ios_base::failbit)
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&& __ul <= numeric_limits<unsigned short>::max())
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__v = static_cast<unsigned short>(__ul);
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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, unsigned int& __v) const
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{
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string __xtrc;
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int __base;
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__beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
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unsigned long __ul;
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__convert_to_v(__xtrc.c_str(), __ul, __err, _S_c_locale, __base);
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if (!(__err & ios_base::failbit)
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&& __ul <= numeric_limits<unsigned int>::max())
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__v = static_cast<unsigned int>(__ul);
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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>::
|
|
do_get(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, unsigned long& __v) const
|
|
{
|
|
string __xtrc;
|
|
int __base;
|
|
__beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
|
|
__convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale, __base);
|
|
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, long long& __v) const
|
|
{
|
|
string __xtrc;
|
|
int __base;
|
|
__beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
|
|
__convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale, __base);
|
|
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 long& __v) const
|
|
{
|
|
string __xtrc;
|
|
int __base;
|
|
__beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
|
|
__convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale, __base);
|
|
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
|
|
{
|
|
string __xtrc;
|
|
__xtrc.reserve(32);
|
|
__beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
|
|
__convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale);
|
|
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);
|
|
__convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale);
|
|
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, long double& __v) const
|
|
{
|
|
string __xtrc;
|
|
__xtrc.reserve(32);
|
|
__beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
|
|
__convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale);
|
|
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;
|
|
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));
|
|
|
|
string __xtrc;
|
|
int __base;
|
|
__beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
|
|
|
|
// Reset from hex formatted input
|
|
__io.flags(__fmt);
|
|
|
|
unsigned long __ul;
|
|
__convert_to_v(__xtrc.c_str(), __ul, __err, _S_c_locale, __base);
|
|
if (!(__err & ios_base::failbit))
|
|
__v = reinterpret_cast<void*>(__ul);
|
|
else
|
|
__err |= ios_base::failbit;
|
|
return __beg;
|
|
}
|
|
|
|
|
|
// The following code uses sprintf() to convert floating point
|
|
// values for insertion into a stream. An optimization would be to
|
|
// replace sprintf() with code that works directly on a wide buffer
|
|
// and then use __pad to do the padding. It would be good
|
|
// to replace sprintf() anyway to avoid accidental buffer overruns
|
|
// and to gain back the efficiency that C++ provides by knowing up
|
|
// front the type of the values to insert. 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_convert_float(_OutIter __s, ios_base& __io, _CharT __fill, char __mod,
|
|
_ValueT __v) const
|
|
{
|
|
const int __max_digits = numeric_limits<_ValueT>::digits10;
|
|
streamsize __prec = __io.precision();
|
|
// Protect against sprintf() buffer overflows.
|
|
if (__prec > static_cast<streamsize>(__max_digits))
|
|
__prec = static_cast<streamsize>(__max_digits);
|
|
|
|
// Long enough for the max format spec.
|
|
char __fbuf[16];
|
|
|
|
// Consider the possibility of long ios_base::fixed outputs
|
|
const bool __fixed = __io.flags() & ios_base::fixed;
|
|
const int __max_exp = numeric_limits<_ValueT>::max_exponent10;
|
|
// ios_base::fixed outputs may need up to __max_exp+1 chars
|
|
// for the integer part + up to __max_digits chars for the
|
|
// fractional part + 3 chars for sign, decimal point, '\0'. On
|
|
// the other hand, for non-fixed outputs __max_digits*3 chars
|
|
// are largely sufficient.
|
|
const int __cs_size = __fixed ? __max_exp + __max_digits + 4
|
|
: __max_digits * 3;
|
|
char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
|
|
|
|
int __len;
|
|
// [22.2.2.2.2] Stage 1, numeric conversion to character.
|
|
if (_S_format_float(__io, __fbuf, __mod, __prec))
|
|
__len = __convert_from_v(__cs, __fbuf, __v, _S_c_locale, __prec);
|
|
else
|
|
__len = __convert_from_v(__cs, __fbuf, __v, _S_c_locale);
|
|
return _M_widen_float(__s, __io, __fill, __cs, __len);
|
|
}
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
template<typename _ValueT>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
_M_convert_int(_OutIter __s, ios_base& __io, _CharT __fill, char __mod,
|
|
char __modl, _ValueT __v) const
|
|
{
|
|
// [22.2.2.2.2] Stage 1, numeric conversion to character.
|
|
// Leave room for "+/-," "0x," and commas. This size is
|
|
// arbitrary, but should work.
|
|
char __cs[64];
|
|
// Long enough for the max format spec.
|
|
char __fbuf[16];
|
|
_S_format_int(__io, __fbuf, __mod, __modl);
|
|
int __len = __convert_from_v(__cs, __fbuf, __v, _S_c_locale);
|
|
return _M_widen_int(__s, __io, __fill, __cs, __len);
|
|
}
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
_M_widen_float(_OutIter __s, ios_base& __io, _CharT __fill, char* __cs,
|
|
int __len) const
|
|
{
|
|
// [22.2.2.2.2] Stage 2, convert to char_type, using correct
|
|
// numpunct.decimal_point() values for '.' and adding grouping.
|
|
const locale __loc = __io.getloc();
|
|
const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
_CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
|
|
* __len));
|
|
// 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));
|
|
__ctype.widen(__cs, __cs + __len, __ws);
|
|
|
|
// Replace decimal point.
|
|
const _CharT* __p;
|
|
const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc);
|
|
if (__p = char_traits<_CharT>::find(__ws, __len, __ctype.widen('.')))
|
|
__ws[__p - __ws] = __np.decimal_point();
|
|
|
|
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
|
|
//282. What types does numpunct grouping refer to?
|
|
// Add grouping, if necessary.
|
|
const string __grouping = __np.grouping();
|
|
ios_base::fmtflags __basefield = __io.flags() & ios_base::basefield;
|
|
if (__grouping.size())
|
|
{
|
|
_CharT* __p2;
|
|
int __declen = __p ? __p - __ws : __len;
|
|
__p2 = __add_grouping(__ws2, __np.thousands_sep(),
|
|
__grouping.c_str(),
|
|
__grouping.c_str() + __grouping.size(),
|
|
__ws, __ws + __declen);
|
|
int __newlen = __p2 - __ws2;
|
|
|
|
// Tack on decimal part.
|
|
if (__p)
|
|
{
|
|
char_traits<_CharT>::copy(__p2, __p, __len - __declen);
|
|
__newlen += __len - __declen;
|
|
}
|
|
|
|
// Switch strings, establish correct new length.
|
|
__ws = __ws2;
|
|
__len = __newlen;
|
|
}
|
|
#endif
|
|
return _M_insert(__s, __io, __fill, __ws, __len);
|
|
}
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
_M_widen_int(_OutIter __s, ios_base& __io, _CharT __fill, char* __cs,
|
|
int __len) const
|
|
{
|
|
// [22.2.2.2.2] Stage 2, convert to char_type, using correct
|
|
// numpunct.decimal_point() values for '.' and adding grouping.
|
|
const locale __loc = __io.getloc();
|
|
const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
_CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
|
|
* __len));
|
|
// 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));
|
|
__ctype.widen(__cs, __cs + __len, __ws);
|
|
|
|
// Add grouping, if necessary.
|
|
const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc);
|
|
const string __grouping = __np.grouping();
|
|
ios_base::fmtflags __basefield = __io.flags() & ios_base::basefield;
|
|
bool __dec = __basefield != ios_base::oct
|
|
&& __basefield != ios_base::hex;
|
|
if (__grouping.size() && __dec)
|
|
{
|
|
_CharT* __p;
|
|
__p = __add_grouping(__ws2, __np.thousands_sep(), __grouping.c_str(),
|
|
__grouping.c_str() + __grouping.size(),
|
|
__ws, __ws + __len);
|
|
__len = __p - __ws2;
|
|
// Switch strings.
|
|
__ws = __ws2;
|
|
}
|
|
return _M_insert(__s, __io, __fill, __ws, __len);
|
|
}
|
|
|
|
// For use by integer and floating-point types after they have been
|
|
// converted into a char_type string.
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
_M_insert(_OutIter __s, ios_base& __io, _CharT __fill, const _CharT* __ws,
|
|
int __len) const
|
|
{
|
|
// [22.2.2.2.2] Stage 3.
|
|
streamsize __w = __io.width();
|
|
_CharT* __ws2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
|
|
* __w));
|
|
if (__w > static_cast<streamsize>(__len))
|
|
{
|
|
__pad(__io, __fill, __ws2, __ws, __w, __len, true);
|
|
__len = static_cast<int>(__w);
|
|
// Switch strings.
|
|
__ws = __ws2;
|
|
}
|
|
__io.width(0);
|
|
|
|
// [22.2.2.2.2] Stage 4.
|
|
// Write resulting, fully-formatted string to output iterator.
|
|
for (int __j = 0; __j < __len; ++__j, ++__s)
|
|
*__s = __ws[__j];
|
|
return __s;
|
|
}
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __io, char_type __fill, bool __v) const
|
|
{
|
|
ios_base::fmtflags __flags = __io.flags();
|
|
if ((__flags & ios_base::boolalpha) == 0)
|
|
{
|
|
unsigned long __uv = __v;
|
|
__s = _M_convert_int(__s, __io, __fill, 'u', char_type(), __uv);
|
|
}
|
|
else
|
|
{
|
|
locale __loc = __io.getloc();
|
|
const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc);
|
|
const char_type* __ws;
|
|
int __len;
|
|
if (__v)
|
|
{
|
|
__ws = __np.truename().c_str();
|
|
__len = __np.truename().size();
|
|
}
|
|
else
|
|
{
|
|
__ws = __np.falsename().c_str();
|
|
__len = __np.falsename().size();
|
|
}
|
|
__s = _M_insert(__s, __io, __fill, __ws, __len);
|
|
}
|
|
return __s;
|
|
}
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __io, char_type __fill, long __v) const
|
|
{ return _M_convert_int(__s, __io, __fill, 'd', char_type(), __v); }
|
|
|
|
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 _M_convert_int(__s, __io, __fill, 'u', char_type(), __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
|
|
{ return _M_convert_int(__s, __b, __fill, 'd', 'l', __v); }
|
|
|
|
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 _M_convert_int(__s, __io, __fill, 'u', 'l', __v); }
|
|
#endif
|
|
|
|
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_convert_float(__s, __io, __fill, char_type(), __v); }
|
|
|
|
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_convert_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
|
|
{
|
|
ios_base::fmtflags __flags = __io.flags();
|
|
ios_base::fmtflags __fmt = ~(ios_base::showpos | ios_base::basefield
|
|
| ios_base::uppercase | ios_base::internal);
|
|
__io.flags(__flags & __fmt | (ios_base::hex | ios_base::showbase));
|
|
try
|
|
{
|
|
__s = _M_convert_int(__s, __io, __fill, 'u', char_type(),
|
|
reinterpret_cast<unsigned long>(__v));
|
|
__io.flags(__flags);
|
|
}
|
|
catch (...)
|
|
{
|
|
__io.flags(__flags);
|
|
__throw_exception_again;
|
|
}
|
|
return __s;
|
|
}
|
|
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
money_get<_CharT, _InIter>::
|
|
do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io,
|
|
ios_base::iostate& __err, long double& __units) const
|
|
{
|
|
string_type __str;
|
|
__beg = this->do_get(__beg, __end, __intl, __io, __err, __str);
|
|
|
|
const int __n = numeric_limits<long double>::digits10;
|
|
char* __cs = static_cast<char*>(__builtin_alloca(sizeof(char) * __n));
|
|
const locale __loc = __io.getloc();
|
|
const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
const _CharT* __wcs = __str.c_str();
|
|
__ctype.narrow(__wcs, __wcs + __str.size() + 1, char(), __cs);
|
|
__convert_to_v(__cs, __units, __err, _S_c_locale);
|
|
return __beg;
|
|
}
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
money_get<_CharT, _InIter>::
|
|
do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io,
|
|
ios_base::iostate& __err, string_type& __units) const
|
|
{
|
|
// These contortions are quite unfortunate.
|
|
typedef moneypunct<_CharT, true> __money_true;
|
|
typedef moneypunct<_CharT, false> __money_false;
|
|
typedef money_base::part part;
|
|
typedef typename string_type::size_type size_type;
|
|
|
|
const locale __loc = __io.getloc();
|
|
const __money_true& __mpt = use_facet<__money_true>(__loc);
|
|
const __money_false& __mpf = use_facet<__money_false>(__loc);
|
|
const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
|
|
const money_base::pattern __p = __intl ? __mpt.neg_format()
|
|
: __mpf.neg_format();
|
|
|
|
const string_type __pos_sign =__intl ? __mpt.positive_sign()
|
|
: __mpf.positive_sign();
|
|
const string_type __neg_sign =__intl ? __mpt.negative_sign()
|
|
: __mpf.negative_sign();
|
|
const char_type __d = __intl ? __mpt.decimal_point()
|
|
: __mpf.decimal_point();
|
|
const char_type __sep = __intl ? __mpt.thousands_sep()
|
|
: __mpf.thousands_sep();
|
|
|
|
const string __grouping = __intl ? __mpt.grouping() : __mpf.grouping();
|
|
|
|
// Set to deduced positive or negative sign, depending.
|
|
string_type __sign;
|
|
// String of grouping info from thousands_sep plucked from __units.
|
|
string __grouping_tmp;
|
|
// Marker for thousands_sep position.
|
|
int __sep_pos = 0;
|
|
// If input iterator is in a valid state.
|
|
bool __testvalid = true;
|
|
// Flag marking when a decimal point is found.
|
|
bool __testdecfound = false;
|
|
|
|
char_type __c = *__beg;
|
|
char_type __eof = static_cast<char_type>(char_traits<char_type>::eof());
|
|
for (int __i = 0; __beg != __end && __i < 4 && __testvalid; ++__i)
|
|
{
|
|
part __which = static_cast<part>(__p.field[__i]);
|
|
switch (__which)
|
|
{
|
|
case money_base::symbol:
|
|
if (__io.flags() & ios_base::showbase)
|
|
{
|
|
// Symbol is required.
|
|
const string_type __symbol = __intl ? __mpt.curr_symbol()
|
|
: __mpf.curr_symbol();
|
|
size_type __len = __symbol.size();
|
|
size_type __i = 0;
|
|
while (__beg != __end
|
|
&& __i < __len && __symbol[__i] == __c)
|
|
{
|
|
__c = *(++__beg);
|
|
++__i;
|
|
}
|
|
if (__i != __len)
|
|
__testvalid = false;
|
|
}
|
|
break;
|
|
case money_base::sign:
|
|
// Sign might not exist, or be more than one character long.
|
|
if (__pos_sign.size() && __neg_sign.size())
|
|
{
|
|
// Sign is mandatory.
|
|
if (__c == __pos_sign[0])
|
|
{
|
|
__sign = __pos_sign;
|
|
__c = *(++__beg);
|
|
}
|
|
else if (__c == __neg_sign[0])
|
|
{
|
|
__sign = __neg_sign;
|
|
__c = *(++__beg);
|
|
}
|
|
else
|
|
__testvalid = false;
|
|
}
|
|
else if (__pos_sign.size() && __c == __pos_sign[0])
|
|
{
|
|
__sign = __pos_sign;
|
|
__c = *(++__beg);
|
|
}
|
|
else if (__neg_sign.size() && __c == __neg_sign[0])
|
|
{
|
|
__sign = __neg_sign;
|
|
__c = *(++__beg);
|
|
}
|
|
break;
|
|
case money_base::value:
|
|
// Extract digits, remove and stash away the
|
|
// grouping of found thousands separators.
|
|
while (__beg != __end
|
|
&& (__ctype.is(ctype_base::digit, __c)
|
|
|| (__c == __d && !__testdecfound)
|
|
|| __c == __sep))
|
|
{
|
|
if (__c == __d)
|
|
{
|
|
__grouping_tmp += static_cast<char>(__sep_pos);
|
|
__sep_pos = 0;
|
|
__testdecfound = true;
|
|
}
|
|
else if (__c == __sep)
|
|
{
|
|
if (__grouping.size())
|
|
{
|
|
// Mark position for later analysis.
|
|
__grouping_tmp += static_cast<char>(__sep_pos);
|
|
__sep_pos = 0;
|
|
}
|
|
else
|
|
{
|
|
__testvalid = false;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
__units += __c;
|
|
++__sep_pos;
|
|
}
|
|
__c = *(++__beg);
|
|
}
|
|
break;
|
|
case money_base::space:
|
|
case money_base::none:
|
|
// Only if not at the end of the pattern.
|
|
if (__i != 3)
|
|
while (__beg != __end
|
|
&& __ctype.is(ctype_base::space, __c))
|
|
__c = *(++__beg);
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Need to get the rest of the sign characters, if they exist.
|
|
if (__sign.size() > 1)
|
|
{
|
|
size_type __len = __sign.size();
|
|
size_type __i = 1;
|
|
for (; __c != __eof && __i < __len; ++__i)
|
|
while (__beg != __end && __c != __sign[__i])
|
|
__c = *(++__beg);
|
|
|
|
if (__i != __len)
|
|
__testvalid = false;
|
|
}
|
|
|
|
// Strip leading zeros.
|
|
while (__units[0] == __ctype.widen('0'))
|
|
__units.erase(__units.begin());
|
|
|
|
if (__sign.size() && __sign == __neg_sign)
|
|
__units.insert(__units.begin(), __ctype.widen('-'));
|
|
|
|
// Test for grouping fidelity.
|
|
if (__grouping.size() && __grouping_tmp.size())
|
|
{
|
|
if (!__verify_grouping(__grouping, __grouping_tmp))
|
|
__testvalid = false;
|
|
}
|
|
|
|
// Iff no more characters are available.
|
|
if (__c == __eof)
|
|
__err |= ios_base::eofbit;
|
|
|
|
// Iff valid sequence is not recognized.
|
|
if (!__testvalid || !__units.size())
|
|
__err |= ios_base::failbit;
|
|
return __beg;
|
|
}
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
money_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
|
|
long double __units) const
|
|
{
|
|
const locale __loc = __io.getloc();
|
|
const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
const int __n = numeric_limits<long double>::digits10;
|
|
char* __cs = static_cast<char*>(__builtin_alloca(sizeof(char) * __n));
|
|
_CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __n));
|
|
int __len = __convert_from_v(__cs, "%.01Lf", __units, _S_c_locale);
|
|
__ctype.widen(__cs, __cs + __len, __ws);
|
|
string_type __digits(__ws);
|
|
return this->do_put(__s, __intl, __io, __fill, __digits);
|
|
}
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
money_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
|
|
const string_type& __digits) const
|
|
{
|
|
typedef typename string_type::size_type size_type;
|
|
typedef money_base::part part;
|
|
|
|
const locale __loc = __io.getloc();
|
|
const size_type __width = static_cast<size_type>(__io.width());
|
|
|
|
// These contortions are quite unfortunate.
|
|
typedef moneypunct<_CharT, true> __money_true;
|
|
typedef moneypunct<_CharT, false> __money_false;
|
|
const __money_true& __mpt = use_facet<__money_true>(__loc);
|
|
const __money_false& __mpf = use_facet<__money_false>(__loc);
|
|
const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
|
|
// Determine if negative or positive formats are to be used, and
|
|
// discard leading negative_sign if it is present.
|
|
const char_type* __beg = __digits.data();
|
|
const char_type* __end = __beg + __digits.size();
|
|
money_base::pattern __p;
|
|
string_type __sign;
|
|
if (*__beg != __ctype.widen('-'))
|
|
{
|
|
__p = __intl ? __mpt.pos_format() : __mpf.pos_format();
|
|
__sign =__intl ? __mpt.positive_sign() : __mpf.positive_sign();
|
|
}
|
|
else
|
|
{
|
|
__p = __intl ? __mpt.neg_format() : __mpf.neg_format();
|
|
__sign =__intl ? __mpt.negative_sign() : __mpf.negative_sign();
|
|
++__beg;
|
|
}
|
|
|
|
// Look for valid numbers in the current ctype facet within input digits.
|
|
__end = __ctype.scan_not(ctype_base::digit, __beg, __end);
|
|
if (__beg != __end)
|
|
{
|
|
// Assume valid input, and attempt to format.
|
|
// Break down input numbers into base components, as follows:
|
|
// final_value = grouped units + (decimal point) + (digits)
|
|
string_type __res;
|
|
string_type __value;
|
|
const string_type __symbol = __intl ? __mpt.curr_symbol()
|
|
: __mpf.curr_symbol();
|
|
|
|
// Deal with decimal point, decimal digits.
|
|
const int __frac = __intl ? __mpt.frac_digits()
|
|
: __mpf.frac_digits();
|
|
if (__frac > 0)
|
|
{
|
|
const char_type __d = __intl ? __mpt.decimal_point()
|
|
: __mpf.decimal_point();
|
|
if (__end - __beg >= __frac)
|
|
{
|
|
__value = string_type(__end - __frac, __end);
|
|
__value.insert(__value.begin(), __d);
|
|
__end -= __frac;
|
|
}
|
|
else
|
|
{
|
|
// Have to pad zeros in the decimal position.
|
|
__value = string_type(__beg, __end);
|
|
int __paddec = __frac - (__end - __beg);
|
|
char_type __zero = __ctype.widen('0');
|
|
__value.insert(__value.begin(), __paddec, __zero);
|
|
__value.insert(__value.begin(), __d);
|
|
__beg = __end;
|
|
}
|
|
}
|
|
|
|
// Add thousands separators to non-decimal digits, per
|
|
// grouping rules.
|
|
if (__beg != __end)
|
|
{
|
|
const string __grouping = __intl ? __mpt.grouping()
|
|
: __mpf.grouping();
|
|
if (__grouping.size())
|
|
{
|
|
const char_type __sep = __intl ? __mpt.thousands_sep()
|
|
: __mpf.thousands_sep();
|
|
const char* __gbeg = __grouping.c_str();
|
|
const char* __gend = __gbeg + __grouping.size();
|
|
const int __n = numeric_limits<long double>::digits10 * 2;
|
|
_CharT* __ws2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __n));
|
|
_CharT* __ws_end = __add_grouping(__ws2, __sep, __gbeg,
|
|
__gend, __beg, __end);
|
|
__value.insert(0, __ws2, __ws_end - __ws2);
|
|
}
|
|
else
|
|
__value.insert(0, string_type(__beg, __end));
|
|
}
|
|
|
|
// Calculate length of resulting string.
|
|
ios_base::fmtflags __f = __io.flags() & ios_base::adjustfield;
|
|
size_type __len = __value.size() + __sign.size();
|
|
__len += (__io.flags() & ios_base::showbase) ? __symbol.size() : 0;
|
|
bool __testipad = __f == ios_base::internal && __len < __width;
|
|
|
|
// Fit formatted digits into the required pattern.
|
|
for (int __i = 0; __i < 4; ++__i)
|
|
{
|
|
part __which = static_cast<part>(__p.field[__i]);
|
|
switch (__which)
|
|
{
|
|
case money_base::symbol:
|
|
if (__io.flags() & ios_base::showbase)
|
|
__res += __symbol;
|
|
break;
|
|
case money_base::sign:
|
|
// Sign might not exist, or be more than one
|
|
// charater long. In that case, add in the rest
|
|
// below.
|
|
if (__sign.size())
|
|
__res += __sign[0];
|
|
break;
|
|
case money_base::value:
|
|
__res += __value;
|
|
break;
|
|
case money_base::space:
|
|
// At least one space is required, but if internal
|
|
// formatting is required, an arbitrary number of
|
|
// fill spaces will be necessary.
|
|
if (__testipad)
|
|
__res += string_type(__width - __len, __fill);
|
|
else
|
|
__res += __ctype.widen(' ');
|
|
break;
|
|
case money_base::none:
|
|
if (__testipad)
|
|
__res += string_type(__width - __len, __fill);
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Special case of multi-part sign parts.
|
|
if (__sign.size() > 1)
|
|
__res += string_type(__sign.begin() + 1, __sign.end());
|
|
|
|
// Pad, if still necessary.
|
|
__len = __res.size();
|
|
if (__width > __len)
|
|
{
|
|
if (__f == ios_base::left)
|
|
// After.
|
|
__res.append(__width - __len, __fill);
|
|
else
|
|
// Before.
|
|
__res.insert(0, string_type(__width - __len, __fill));
|
|
__len = __width;
|
|
}
|
|
|
|
// Write resulting, fully-formatted string to output iterator.
|
|
for (size_type __j = 0; __j < __len; ++__j, ++__s)
|
|
*__s = __res[__j];
|
|
}
|
|
__io.width(0);
|
|
return __s;
|
|
}
|
|
|
|
|
|
// NB: Not especially useful. Without an ios_base object or some
|
|
// kind of locale reference, we are left clawing at the air where
|
|
// the side of the mountain used to be...
|
|
template<typename _CharT, typename _InIter>
|
|
time_base::dateorder
|
|
time_get<_CharT, _InIter>::do_date_order() const
|
|
{ return time_base::no_order; }
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
void
|
|
time_get<_CharT, _InIter>::
|
|
_M_extract_via_format(iter_type& __beg, iter_type& __end, ios_base& __io,
|
|
ios_base::iostate& __err, tm* __tm,
|
|
const _CharT* __format) const
|
|
{
|
|
locale __loc = __io.getloc();
|
|
__timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc);
|
|
const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
size_t __len = char_traits<_CharT>::length(__format);
|
|
|
|
for (size_t __i = 0; __beg != __end && __i < __len && !__err; ++__i)
|
|
{
|
|
char __c = __format[__i];
|
|
if (__c == '%')
|
|
{
|
|
// Verify valid formatting code, attempt to extract.
|
|
__c = __format[++__i];
|
|
char __mod = 0;
|
|
int __mem = 0;
|
|
if (__c == 'E' || __c == 'O')
|
|
{
|
|
__mod = __c;
|
|
__c = __format[++__i];
|
|
}
|
|
switch (__c)
|
|
{
|
|
const char* __cs;
|
|
_CharT __wcs[10];
|
|
case 'a':
|
|
// Abbreviated weekday name [tm_wday]
|
|
const char_type* __days1[7];
|
|
__tp._M_days_abbreviated(__days1);
|
|
_M_extract_name(__beg, __end, __tm->tm_wday, __days1, 7,
|
|
__err);
|
|
break;
|
|
case 'A':
|
|
// Weekday name [tm_wday].
|
|
const char_type* __days2[7];
|
|
__tp._M_days(__days2);
|
|
_M_extract_name(__beg, __end, __tm->tm_wday, __days2, 7,
|
|
__err);
|
|
break;
|
|
case 'h':
|
|
case 'b':
|
|
// Abbreviated month name [tm_mon]
|
|
const char_type* __months1[12];
|
|
__tp._M_months_abbreviated(__months1);
|
|
_M_extract_name(__beg, __end, __tm->tm_mon, __months1, 12,
|
|
__err);
|
|
break;
|
|
case 'B':
|
|
// Month name [tm_mon].
|
|
const char_type* __months2[12];
|
|
__tp._M_months(__months2);
|
|
_M_extract_name(__beg, __end, __tm->tm_mon, __months2, 12,
|
|
__err);
|
|
break;
|
|
case 'c':
|
|
// Default time and date representation.
|
|
const char_type* __dt[2];
|
|
__tp._M_date_time_formats(__dt);
|
|
_M_extract_via_format(__beg, __end, __io, __err, __tm,
|
|
__dt[0]);
|
|
break;
|
|
case 'd':
|
|
// Day [01, 31]. [tm_mday]
|
|
_M_extract_num(__beg, __end, __tm->tm_mday, 1, 31, 2,
|
|
__ctype, __err);
|
|
break;
|
|
case 'D':
|
|
// Equivalent to %m/%d/%y.[tm_mon, tm_mday, tm_year]
|
|
__cs = "%m/%d/%y";
|
|
__ctype.widen(__cs, __cs + 9, __wcs);
|
|
_M_extract_via_format(__beg, __end, __io, __err, __tm,
|
|
__wcs);
|
|
break;
|
|
case 'H':
|
|
// Hour [00, 23]. [tm_hour]
|
|
_M_extract_num(__beg, __end, __tm->tm_hour, 0, 23, 2,
|
|
__ctype, __err);
|
|
break;
|
|
case 'I':
|
|
// Hour [01, 12]. [tm_hour]
|
|
_M_extract_num(__beg, __end, __tm->tm_hour, 1, 12, 2,
|
|
__ctype, __err);
|
|
break;
|
|
case 'm':
|
|
// Month [01, 12]. [tm_mon]
|
|
_M_extract_num(__beg, __end, __mem, 1, 12, 2, __ctype,
|
|
__err);
|
|
if (!__err)
|
|
__tm->tm_mon = __mem - 1;
|
|
break;
|
|
case 'M':
|
|
// Minute [00, 59]. [tm_min]
|
|
_M_extract_num(__beg, __end, __tm->tm_min, 0, 59, 2,
|
|
__ctype, __err);
|
|
break;
|
|
case 'n':
|
|
if (__ctype.narrow(*__beg, 0) == '\n')
|
|
++__beg;
|
|
else
|
|
__err |= ios_base::failbit;
|
|
break;
|
|
case 'R':
|
|
// Equivalent to (%H:%M).
|
|
__cs = "%H:%M";
|
|
__ctype.widen(__cs, __cs + 6, __wcs);
|
|
_M_extract_via_format(__beg, __end, __io, __err, __tm,
|
|
__wcs);
|
|
break;
|
|
case 'S':
|
|
// Seconds.
|
|
_M_extract_num(__beg, __end, __tm->tm_sec, 0, 59, 2,
|
|
__ctype, __err);
|
|
break;
|
|
case 't':
|
|
if (__ctype.narrow(*__beg, 0) == '\t')
|
|
++__beg;
|
|
else
|
|
__err |= ios_base::failbit;
|
|
break;
|
|
case 'T':
|
|
// Equivalent to (%H:%M:%S).
|
|
__cs = "%H:%M:%S";
|
|
__ctype.widen(__cs, __cs + 9, __wcs);
|
|
_M_extract_via_format(__beg, __end, __io, __err, __tm,
|
|
__wcs);
|
|
break;
|
|
case 'x':
|
|
// Locale's date.
|
|
const char_type* __dates[2];
|
|
__tp._M_date_formats(__dates);
|
|
_M_extract_via_format(__beg, __end, __io, __err, __tm,
|
|
__dates[0]);
|
|
break;
|
|
case 'X':
|
|
// Locale's time.
|
|
const char_type* __times[2];
|
|
__tp._M_time_formats(__times);
|
|
_M_extract_via_format(__beg, __end, __io, __err, __tm,
|
|
__times[0]);
|
|
break;
|
|
case 'y':
|
|
// Two digit year. [tm_year]
|
|
_M_extract_num(__beg, __end, __tm->tm_year, 0, 99, 2,
|
|
__ctype, __err);
|
|
break;
|
|
case 'Y':
|
|
// Year [1900). [tm_year]
|
|
_M_extract_num(__beg, __end, __mem, 0,
|
|
numeric_limits<int>::max(), 4,
|
|
__ctype, __err);
|
|
if (!__err)
|
|
__tm->tm_year = __mem - 1900;
|
|
break;
|
|
case 'Z':
|
|
// Timezone info.
|
|
if (__ctype.is(ctype_base::upper, *__beg))
|
|
{
|
|
int __tmp;
|
|
_M_extract_name(__beg, __end, __tmp,
|
|
__timepunct<_CharT>::_S_timezones,
|
|
14, __err);
|
|
|
|
// GMT requires special effort.
|
|
char_type __c = *__beg;
|
|
if (!__err && __tmp == 0
|
|
&& (__c == __ctype.widen('-')
|
|
|| __c == __ctype.widen('+')))
|
|
{
|
|
_M_extract_num(__beg, __end, __tmp, 0, 23, 2,
|
|
__ctype, __err);
|
|
_M_extract_num(__beg, __end, __tmp, 0, 59, 2,
|
|
__ctype, __err);
|
|
}
|
|
}
|
|
else
|
|
__err |= ios_base::failbit;
|
|
break;
|
|
default:
|
|
// Not recognized.
|
|
__err |= ios_base::failbit;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Verify format and input match, extract and discard.
|
|
if (__c == __ctype.narrow(*__beg, 0))
|
|
++__beg;
|
|
else
|
|
__err |= ios_base::failbit;
|
|
}
|
|
}
|
|
}
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
void
|
|
time_get<_CharT, _InIter>::
|
|
_M_extract_num(iter_type& __beg, iter_type& __end, int& __member,
|
|
int __min, int __max, size_t __len,
|
|
const ctype<_CharT>& __ctype,
|
|
ios_base::iostate& __err) const
|
|
{
|
|
size_t __i = 0;
|
|
string __digits;
|
|
bool __testvalid = true;
|
|
char_type __c = *__beg;
|
|
while (__beg != __end && __i < __len
|
|
&& __ctype.is(ctype_base::digit, __c))
|
|
{
|
|
__digits += __ctype.narrow(__c, 0);
|
|
__c = *(++__beg);
|
|
++__i;
|
|
}
|
|
if (__i == __len)
|
|
{
|
|
int __value = atoi(__digits.c_str());
|
|
if (__min <= __value && __value <= __max)
|
|
__member = __value;
|
|
else
|
|
__testvalid = false;
|
|
}
|
|
else
|
|
__testvalid = false;
|
|
if (!__testvalid)
|
|
__err |= ios_base::failbit;
|
|
}
|
|
|
|
// Assumptions:
|
|
// All elements in __names are unique.
|
|
template<typename _CharT, typename _InIter>
|
|
void
|
|
time_get<_CharT, _InIter>::
|
|
_M_extract_name(iter_type& __beg, iter_type& __end, int& __member,
|
|
const _CharT** __names, size_t __indexlen,
|
|
ios_base::iostate& __err) const
|
|
{
|
|
typedef char_traits<char_type> __traits_type;
|
|
int* __matches = static_cast<int*>(__builtin_alloca(sizeof(int) * __indexlen));
|
|
size_t __nmatches = 0;
|
|
size_t __pos = 0;
|
|
bool __testvalid = true;
|
|
const char_type* __name;
|
|
|
|
char_type __c = *__beg;
|
|
// Look for initial matches.
|
|
for (size_t __i1 = 0; __i1 < __indexlen; ++__i1)
|
|
if (__c == __names[__i1][0])
|
|
__matches[__nmatches++] = __i1;
|
|
|
|
while(__nmatches > 1)
|
|
{
|
|
// Find smallest matching string.
|
|
size_t __minlen = 10;
|
|
for (size_t __i2 = 0; __i2 < __nmatches; ++__i2)
|
|
__minlen = min(__minlen,
|
|
__traits_type::length(__names[__matches[__i2]]));
|
|
|
|
if (__pos < __minlen && __beg != __end)
|
|
{
|
|
++__pos;
|
|
__c = *(++__beg);
|
|
for (size_t __i3 = 0; __i3 < __nmatches; ++__i3)
|
|
{
|
|
__name = __names[__matches[__i3]];
|
|
if (__name[__pos] != __c)
|
|
__matches[__i3] = __matches[--__nmatches];
|
|
}
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
|
|
if (__nmatches == 1)
|
|
{
|
|
// Make sure found name is completely extracted.
|
|
__name = __names[__matches[0]];
|
|
const size_t __len = __traits_type::length(__name);
|
|
while (__pos < __len && __beg != __end && __name[__pos] == *__beg)
|
|
++__beg, ++__pos;
|
|
|
|
if (__len == __pos)
|
|
__member = __matches[0];
|
|
else
|
|
__testvalid = false;
|
|
}
|
|
else
|
|
__testvalid = false;
|
|
if (!__testvalid)
|
|
__err |= ios_base::failbit;
|
|
}
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
time_get<_CharT, _InIter>::
|
|
do_get_time(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, tm* __tm) const
|
|
{
|
|
_CharT __wcs[3];
|
|
const char* __cs = "%X";
|
|
locale __loc = __io.getloc();
|
|
ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
__ctype.widen(__cs, __cs + 3, __wcs);
|
|
_M_extract_via_format(__beg, __end, __io, __err, __tm, __wcs);
|
|
if (__beg == __end)
|
|
__err |= ios_base::eofbit;
|
|
return __beg;
|
|
}
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
time_get<_CharT, _InIter>::
|
|
do_get_date(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, tm* __tm) const
|
|
{
|
|
_CharT __wcs[3];
|
|
const char* __cs = "%x";
|
|
locale __loc = __io.getloc();
|
|
ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
__ctype.widen(__cs, __cs + 3, __wcs);
|
|
_M_extract_via_format(__beg, __end, __io, __err, __tm, __wcs);
|
|
if (__beg == __end)
|
|
__err |= ios_base::eofbit;
|
|
return __beg;
|
|
}
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
time_get<_CharT, _InIter>::
|
|
do_get_weekday(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, tm* __tm) const
|
|
{
|
|
typedef char_traits<char_type> __traits_type;
|
|
locale __loc = __io.getloc();
|
|
__timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc);
|
|
const char_type* __days[7];
|
|
__tp._M_days_abbreviated(__days);
|
|
int __tmpwday;
|
|
_M_extract_name(__beg, __end, __tmpwday, __days, 7, __err);
|
|
|
|
// Check to see if non-abbreviated name exists, and extract.
|
|
// NB: Assumes both _M_days and _M_days_abbreviated organized in
|
|
// exact same order, first to last, such that the resulting
|
|
// __days array with the same index points to a day, and that
|
|
// day's abbreviated form.
|
|
// NB: Also assumes that an abbreviated name is a subset of the name.
|
|
if (!__err)
|
|
{
|
|
size_t __pos = __traits_type::length(__days[__tmpwday]);
|
|
__tp._M_days(__days);
|
|
const char_type* __name = __days[__tmpwday];
|
|
if (__name[__pos] == *__beg)
|
|
{
|
|
// Extract the rest of it.
|
|
const size_t __len = __traits_type::length(__name);
|
|
while (__pos < __len && __beg != __end
|
|
&& __name[__pos] == *__beg)
|
|
++__beg, ++__pos;
|
|
if (__len != __pos)
|
|
__err |= ios_base::failbit;
|
|
}
|
|
if (!__err)
|
|
__tm->tm_wday = __tmpwday;
|
|
}
|
|
if (__beg == __end)
|
|
__err |= ios_base::eofbit;
|
|
return __beg;
|
|
}
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
time_get<_CharT, _InIter>::
|
|
do_get_monthname(iter_type __beg, iter_type __end,
|
|
ios_base& __io, ios_base::iostate& __err, tm* __tm) const
|
|
{
|
|
typedef char_traits<char_type> __traits_type;
|
|
locale __loc = __io.getloc();
|
|
__timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc);
|
|
const char_type* __months[12];
|
|
__tp._M_months_abbreviated(__months);
|
|
int __tmpmon;
|
|
_M_extract_name(__beg, __end, __tmpmon, __months, 12, __err);
|
|
|
|
// Check to see if non-abbreviated name exists, and extract.
|
|
// NB: Assumes both _M_months and _M_months_abbreviated organized in
|
|
// exact same order, first to last, such that the resulting
|
|
// __months array with the same index points to a month, and that
|
|
// month's abbreviated form.
|
|
// NB: Also assumes that an abbreviated name is a subset of the name.
|
|
if (!__err)
|
|
{
|
|
size_t __pos = __traits_type::length(__months[__tmpmon]);
|
|
__tp._M_months(__months);
|
|
const char_type* __name = __months[__tmpmon];
|
|
if (__name[__pos] == *__beg)
|
|
{
|
|
// Extract the rest of it.
|
|
const size_t __len = __traits_type::length(__name);
|
|
while (__pos < __len && __beg != __end
|
|
&& __name[__pos] == *__beg)
|
|
++__beg, ++__pos;
|
|
if (__len != __pos)
|
|
__err |= ios_base::failbit;
|
|
}
|
|
if (!__err)
|
|
__tm->tm_mon = __tmpmon;
|
|
}
|
|
|
|
if (__beg == __end)
|
|
__err |= ios_base::eofbit;
|
|
return __beg;
|
|
}
|
|
|
|
template<typename _CharT, typename _InIter>
|
|
_InIter
|
|
time_get<_CharT, _InIter>::
|
|
do_get_year(iter_type __beg, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, tm* __tm) const
|
|
{
|
|
locale __loc = __io.getloc();
|
|
const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
|
|
char_type __c = *__beg;
|
|
size_t __i = 0;
|
|
string __digits;
|
|
while (__i < 4 && __beg != __end && __ctype.is(ctype_base::digit, __c))
|
|
{
|
|
__digits += __ctype.narrow(__c, 0);
|
|
__c = *(++__beg);
|
|
++__i;
|
|
}
|
|
if (__i == 2 || __i == 4)
|
|
{
|
|
long __l;
|
|
__convert_to_v(__digits.c_str(), __l, __err, _S_c_locale);
|
|
if (!(__err & ios_base::failbit) && __l <= INT_MAX)
|
|
{
|
|
__l = __i == 2 ? __l : __l - 1900;
|
|
__tm->tm_year = static_cast<int>(__l);
|
|
}
|
|
}
|
|
else
|
|
__err |= ios_base::failbit;
|
|
if (__beg == __end)
|
|
__err |= ios_base::eofbit;
|
|
return __beg;
|
|
}
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
time_put<_CharT, _OutIter>::
|
|
put(iter_type __s, ios_base& __io, char_type, const tm* __tm,
|
|
const _CharT* __beg, const _CharT* __end) const
|
|
{
|
|
locale __loc = __io.getloc();
|
|
ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
while (__beg != __end)
|
|
{
|
|
char __c = __ctype.narrow(*__beg, 0);
|
|
++__beg;
|
|
if (__c == '%')
|
|
{
|
|
char __format;
|
|
char __mod = 0;
|
|
size_t __len = 1;
|
|
__c = __ctype.narrow(*__beg, 0);
|
|
++__beg;
|
|
if (__c == 'E' || __c == 'O')
|
|
{
|
|
__mod = __c;
|
|
__format = __ctype.narrow(*__beg, 0);
|
|
++__beg;
|
|
}
|
|
else
|
|
__format = __c;
|
|
__s = this->do_put(__s, __io, char_type(), __tm, __format,
|
|
__mod);
|
|
}
|
|
else
|
|
{
|
|
*__s = __c;
|
|
++__s;
|
|
}
|
|
}
|
|
return __s;
|
|
}
|
|
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
time_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __io, char_type, const tm* __tm,
|
|
char __format, char __mod) const
|
|
{
|
|
locale __loc = __io.getloc();
|
|
ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
__timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc);
|
|
|
|
// NB: This size is arbitrary. Should this be a data member,
|
|
// initialized at construction?
|
|
const size_t __maxlen = 64;
|
|
char_type* __res = static_cast<char_type*>(__builtin_alloca(__maxlen));
|
|
|
|
// NB: In IEE 1003.1-200x, and perhaps other locale models, it
|
|
// is possible that the format character will be longer than one
|
|
// character. Possibilities include 'E' or 'O' followed by a
|
|
// format character: if __mod is not the default argument, assume
|
|
// it's a valid modifier.
|
|
char_type __fmt[4];
|
|
__fmt[0] = __ctype.widen('%');
|
|
if (!__mod)
|
|
{
|
|
__fmt[1] = __format;
|
|
__fmt[2] = char_type();
|
|
}
|
|
else
|
|
{
|
|
__fmt[1] = __mod;
|
|
__fmt[2] = __format;
|
|
__fmt[3] = char_type();
|
|
}
|
|
|
|
__tp._M_put_helper(__res, __maxlen, __fmt, __tm);
|
|
|
|
// Write resulting, fully-formatted string to output iterator.
|
|
size_t __len = char_traits<char_type>::length(__res);
|
|
for (size_t __i = 0; __i < __len; ++__i, ++__s)
|
|
*__s = __res[__i];
|
|
return __s;
|
|
}
|
|
|
|
|
|
// Generic version does nothing.
|
|
template<typename _CharT>
|
|
int
|
|
collate<_CharT>::_M_compare_helper(const _CharT*, const _CharT*) const
|
|
{ return 0; }
|
|
|
|
// Generic version does nothing.
|
|
template<typename _CharT>
|
|
size_t
|
|
collate<_CharT>::_M_transform_helper(_CharT*, const _CharT*, size_t) const
|
|
{ return 0; }
|
|
|
|
template<typename _CharT>
|
|
int
|
|
collate<_CharT>::
|
|
do_compare(const _CharT* __lo1, const _CharT* __hi1,
|
|
const _CharT* __lo2, const _CharT* __hi2) const
|
|
{
|
|
const string_type __one(__lo1, __hi1);
|
|
const string_type __two(__lo2, __hi2);
|
|
return _M_compare_helper(__one.c_str(), __two.c_str());
|
|
}
|
|
|
|
template<typename _CharT>
|
|
typename collate<_CharT>::string_type
|
|
collate<_CharT>::
|
|
do_transform(const _CharT* __lo, const _CharT* __hi) const
|
|
{
|
|
size_t __len = __hi - __lo;
|
|
_CharT* __c = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __len));
|
|
size_t __res = _M_transform_helper(__c, __lo, __len);
|
|
if (__res >= __len)
|
|
{
|
|
// Try to increment size of translated string.
|
|
size_t __len2 = __len * 2;
|
|
_CharT* __c2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __len2));
|
|
__res = _M_transform_helper(__c2, __lo, __len);
|
|
// XXX Throw exception if still indeterminate?
|
|
}
|
|
return string_type(__c);
|
|
}
|
|
|
|
template<typename _CharT>
|
|
long
|
|
collate<_CharT>::
|
|
do_hash(const _CharT* __lo, const _CharT* __hi) const
|
|
{
|
|
unsigned long __val = 0;
|
|
for (; __lo < __hi; ++__lo)
|
|
__val = *__lo + ((__val << 7) |
|
|
(__val >> (numeric_limits<unsigned long>::digits - 1)));
|
|
return static_cast<long>(__val);
|
|
}
|
|
|
|
// Convert string to numeric value of type T and store results.
|
|
// NB: This is specialized for all required types, there is no
|
|
// generic definition.
|
|
template<typename _T>
|
|
void
|
|
__convert_to_v(const char* __in, _T& __out, ios_base::iostate& __err,
|
|
const __c_locale& __cloc, int __base = 10);
|
|
|
|
// Convert numeric value of type T to string and return length of string.
|
|
template<typename _T>
|
|
int
|
|
__convert_from_v(char* __out, const char* __fmt, _T __v,
|
|
const __c_locale&, int __prec = -1)
|
|
{
|
|
int __ret;
|
|
const char* __old = setlocale(LC_ALL, "C");
|
|
if (__prec >= 0)
|
|
__ret = sprintf(__out, __fmt, __prec, __v);
|
|
else
|
|
__ret = sprintf(__out, __fmt, __v);
|
|
setlocale(LC_ALL, __old);
|
|
return __ret;
|
|
}
|
|
|
|
// Construct correctly padded string, as per 22.2.2.2.2
|
|
// Assumes
|
|
// __newlen > __oldlen
|
|
// __news is allocated for __newlen size
|
|
// Used by both num_put and ostream inserters: if __num,
|
|
// internal-adjusted objects are padded according to the rules below
|
|
// concerning 0[xX] and +-, otherwise, exactly as right-adjusted
|
|
// ones are.
|
|
template<typename _CharT, typename _Traits>
|
|
void
|
|
__pad(ios_base& __io, _CharT __fill, _CharT* __news, const _CharT* __olds,
|
|
const streamsize __newlen, const streamsize __oldlen,
|
|
const bool __num)
|
|
{
|
|
typedef _CharT char_type;
|
|
typedef _Traits traits_type;
|
|
typedef typename traits_type::int_type int_type;
|
|
|
|
int_type __plen = static_cast<size_t>(__newlen - __oldlen);
|
|
char_type* __pads = static_cast<char_type*>(__builtin_alloca(sizeof(char_type) * __plen));
|
|
traits_type::assign(__pads, __plen, __fill);
|
|
|
|
char_type* __beg;
|
|
char_type* __end;
|
|
size_t __mod = 0;
|
|
size_t __beglen; //either __plen or __oldlen
|
|
ios_base::fmtflags __adjust = __io.flags() & ios_base::adjustfield;
|
|
|
|
if (__adjust == ios_base::left)
|
|
{
|
|
// Padding last.
|
|
__beg = const_cast<char_type*>(__olds);
|
|
__beglen = __oldlen;
|
|
__end = __pads;
|
|
}
|
|
else if (__adjust == ios_base::internal && __num)
|
|
{
|
|
// Pad after the sign, if there is one.
|
|
// Pad after 0[xX], if there is one.
|
|
// Who came up with these rules, anyway? Jeeze.
|
|
locale __loc = __io.getloc();
|
|
const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
|
|
const char_type __minus = __ctype.widen('-');
|
|
const char_type __plus = __ctype.widen('+');
|
|
bool __testsign = __olds[0] == __minus || __olds[0] == __plus;
|
|
bool __testhex = __ctype.widen('0') == __olds[0]
|
|
&& (__ctype.widen('x') == __olds[1]
|
|
|| __ctype.widen('X') == __olds[1]);
|
|
if (__testhex)
|
|
{
|
|
__news[0] = __olds[0];
|
|
__news[1] = __olds[1];
|
|
__mod += 2;
|
|
__news += 2;
|
|
__beg = __pads;
|
|
__beglen = __plen;
|
|
__end = const_cast<char_type*>(__olds + __mod);
|
|
}
|
|
else if (__testsign)
|
|
{
|
|
__news[0] = __olds[0] == __plus ? __plus : __minus;
|
|
++__mod;
|
|
++__news;
|
|
__beg = __pads;
|
|
__beglen = __plen;
|
|
__end = const_cast<char_type*>(__olds + __mod);
|
|
}
|
|
else
|
|
{
|
|
// Padding first.
|
|
__beg = __pads;
|
|
__beglen = __plen;
|
|
__end = const_cast<char_type*>(__olds);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Padding first.
|
|
__beg = __pads;
|
|
__beglen = __plen;
|
|
__end = const_cast<char_type*>(__olds);
|
|
}
|
|
traits_type::copy(__news, __beg, __beglen);
|
|
traits_type::copy(__news + __beglen, __end, __newlen - __beglen - __mod);
|
|
}
|
|
|
|
// NB: Can't have default argument on non-member template, and
|
|
// num_put doesn't have a _Traits template parameter, so this
|
|
// forwarding template adds in the default template argument.
|
|
template<typename _CharT>
|
|
void
|
|
__pad(ios_base& __io, _CharT __fill, _CharT* __news, const _CharT* __olds,
|
|
const streamsize __newlen, const streamsize __oldlen,
|
|
const bool __num)
|
|
{
|
|
return __pad<_CharT, char_traits<_CharT> >(__io, __fill, __news, __olds,
|
|
__newlen, __oldlen, __num);
|
|
}
|
|
|
|
// Used by both numeric and monetary facets.
|
|
// Check to make sure that the __grouping_tmp string constructed in
|
|
// money_get or num_get matches the canonical grouping for a given
|
|
// locale.
|
|
// __grouping_tmp is parsed L to R
|
|
// 1,222,444 == __grouping_tmp of "/1/3/3"
|
|
// __grouping is parsed R to L
|
|
// 1,222,444 == __grouping of "/3" == "/3/3/3"
|
|
template<typename _CharT>
|
|
bool
|
|
__verify_grouping(const basic_string<_CharT>& __grouping,
|
|
basic_string<_CharT>& __grouping_tmp)
|
|
{
|
|
int __i = 0;
|
|
int __j = 0;
|
|
const int __len = __grouping.size();
|
|
const int __n = __grouping_tmp.size();
|
|
bool __test = true;
|
|
|
|
// Parsed number groupings have to match the
|
|
// numpunct::grouping string exactly, starting at the
|
|
// right-most point of the parsed sequence of elements ...
|
|
while (__test && __i < __n - 1)
|
|
for (__j = 0; __test && __j < __len && __i < __n - 1; ++__j,++__i)
|
|
__test &= __grouping[__j] == __grouping_tmp[__n - __i - 1];
|
|
// ... but the last parsed grouping can be <= numpunct
|
|
// grouping.
|
|
__j == __len ? __j = 0 : __j;
|
|
__test &= __grouping[__j] >= __grouping_tmp[__n - __i - 1];
|
|
return __test;
|
|
}
|
|
|
|
// Used by both numeric and monetary facets.
|
|
// 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 __gbeg != __gend.
|
|
template<typename _CharT>
|
|
_CharT*
|
|
__add_grouping(_CharT* __s, _CharT __sep,
|
|
const char* __gbeg, const char* __gend,
|
|
const _CharT* __first, const _CharT* __last)
|
|
{
|
|
if (__last - __first > *__gbeg)
|
|
{
|
|
__s = __add_grouping(__s, __sep,
|
|
(__gbeg + 1 == __gend ? __gbeg : __gbeg + 1),
|
|
__gend, __first, __last - *__gbeg);
|
|
__first = __last - *__gbeg;
|
|
*__s++ = __sep;
|
|
}
|
|
do
|
|
*__s++ = *__first++;
|
|
while (__first != __last);
|
|
return __s;
|
|
}
|
|
} // namespace std
|
|
|
|
#endif
|