locale_facets.tcc

00001 // Locale support -*- C++ -*-
00002 
00003 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
00004 // Free Software Foundation, Inc.
00005 //
00006 // This file is part of the GNU ISO C++ Library.  This library is free
00007 // software; you can redistribute it and/or modify it under the
00008 // terms of the GNU General Public License as published by the
00009 // Free Software Foundation; either version 2, or (at your option)
00010 // any later version.
00011 
00012 // This library is distributed in the hope that it will be useful,
00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015 // GNU General Public License for more details.
00016 
00017 // You should have received a copy of the GNU General Public License along
00018 // with this library; see the file COPYING.  If not, write to the Free
00019 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
00020 // USA.
00021 
00022 // As a special exception, you may use this file as part of a free software
00023 // library without restriction.  Specifically, if other files instantiate
00024 // templates or use macros or inline functions from this file, or you compile
00025 // this file and link it with other files to produce an executable, this
00026 // file does not by itself cause the resulting executable to be covered by
00027 // the GNU General Public License.  This exception does not however
00028 // invalidate any other reasons why the executable file might be covered by
00029 // the GNU General Public License.
00030 
00031 // Warning: this file is not meant for user inclusion. Use <locale>.
00032 
00033 #ifndef _CPP_BITS_LOCFACETS_TCC
00034 #define _CPP_BITS_LOCFACETS_TCC 1
00035 
00036 #pragma GCC system_header
00037 
00038 #include <cerrno>
00039 #include <clocale>   // For localeconv
00040 #include <cstdlib>   // For strof, strtold
00041 #include <cmath>     // For ceil
00042 #include <cctype>    // For isspace
00043 #include <limits>    // For numeric_limits
00044 #include <bits/streambuf_iterator.h>
00045 #include <typeinfo>  // For bad_cast.
00046 
00047 namespace std
00048 {
00049   template<typename _Facet>
00050     locale
00051     locale::combine(const locale& __other) const
00052     {
00053       _Impl* __tmp = new _Impl(*_M_impl, 1);
00054       __tmp->_M_replace_facet(__other._M_impl, &_Facet::id);
00055       return locale(__tmp);
00056     }
00057 
00058   template<typename _CharT, typename _Traits, typename _Alloc>
00059     bool
00060     locale::operator()(const basic_string<_CharT, _Traits, _Alloc>& __s1,
00061                        const basic_string<_CharT, _Traits, _Alloc>& __s2) const
00062     {
00063       typedef std::collate<_CharT> __collate_type;
00064       const __collate_type& __collate = use_facet<__collate_type>(*this);
00065       return (__collate.compare(__s1.data(), __s1.data() + __s1.length(),
00066                 __s2.data(), __s2.data() + __s2.length()) < 0);
00067     }
00068 
00069   template<typename _Facet>
00070     const _Facet&
00071     use_facet(const locale& __loc)
00072     {
00073       size_t __i = _Facet::id._M_id();
00074       locale::facet** __facets = __loc._M_impl->_M_facets;
00075       if (!(__i < __loc._M_impl->_M_facets_size && __facets[__i]))
00076         __throw_bad_cast();
00077       return static_cast<const _Facet&>(*__facets[__i]);
00078     }
00079 
00080   template<typename _Facet>
00081     bool
00082     has_facet(const locale& __loc) throw()
00083     {
00084       size_t __i = _Facet::id._M_id();
00085       locale::facet** __facets = __loc._M_impl->_M_facets;
00086       return (__i < __loc._M_impl->_M_facets_size && __facets[__i]);
00087     }
00088 
00089 
00090   // Stage 1: Determine a conversion specifier.
00091   template<typename _CharT, typename _InIter>
00092     _InIter
00093     num_get<_CharT, _InIter>::
00094     _M_extract_float(_InIter __beg, _InIter __end, ios_base& __io,
00095              ios_base::iostate& __err, string& __xtrc) const
00096     {
00097       const locale __loc = __io.getloc();
00098       const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
00099       const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc);
00100 
00101       // First check for sign.
00102       const char_type __plus = __ctype.widen('+');
00103       const char_type __minus = __ctype.widen('-');
00104       int __pos = 0;
00105       char_type  __c = *__beg;
00106       if ((__c == __plus || __c == __minus) && __beg != __end)
00107     {
00108       __xtrc += __ctype.narrow(__c, char());
00109       ++__pos;
00110       __c = *(++__beg);
00111     }
00112 
00113       // Next, strip leading zeros.
00114       const char_type __zero = __ctype.widen(_S_atoms[_M_zero]);
00115       bool __found_zero = false;
00116       while (__c == __zero && __beg != __end)
00117     {
00118       __c = *(++__beg);
00119       __found_zero = true;
00120     }
00121       if (__found_zero)
00122     {
00123       __xtrc += _S_atoms[_M_zero];
00124       ++__pos;
00125     }
00126 
00127       // Only need acceptable digits for floating point numbers.
00128       const size_t __len = _M_E - _M_zero + 1;
00129       char_type  __watoms[__len];
00130       __ctype.widen(_S_atoms, _S_atoms + __len, __watoms);
00131       bool __found_dec = false;
00132       bool __found_sci = false;
00133       const char_type __dec = __np.decimal_point();
00134 
00135       string __found_grouping;
00136       const string __grouping = __np.grouping();
00137       bool __check_grouping = __grouping.size();
00138       int __sep_pos = 0;
00139       const char_type __sep = __np.thousands_sep();
00140 
00141       while (__beg != __end)
00142         {
00143       // Only look in digits.
00144       typedef char_traits<_CharT>   __traits_type;
00145           const char_type* __p = __traits_type::find(__watoms, 10,  __c);
00146 
00147           // NB: strchr returns true for __c == 0x0
00148           if (__p && __c)
00149         {
00150           // Try first for acceptable digit; record it if found.
00151           ++__pos;
00152           __xtrc += _S_atoms[__p - __watoms];
00153           ++__sep_pos;
00154           __c = *(++__beg);
00155         }
00156           else if (__c == __sep && __check_grouping && !__found_dec)
00157         {
00158               // NB: Thousands separator at the beginning of a string
00159               // is a no-no, as is two consecutive thousands separators.
00160               if (__sep_pos)
00161                 {
00162                   __found_grouping += static_cast<char>(__sep_pos);
00163                   __sep_pos = 0;
00164           __c = *(++__beg);
00165                 }
00166               else
00167         {
00168           __err |= ios_base::failbit;
00169           break;
00170         }
00171             }
00172       else if (__c == __dec && !__found_dec)
00173         {
00174           // According to the standard, if no grouping chars are seen,
00175           // no grouping check is applied. Therefore __found_grouping
00176           // must be adjusted only if __dec comes after some __sep.
00177           if (__found_grouping.size())
00178         __found_grouping += static_cast<char>(__sep_pos);
00179           ++__pos;
00180           __xtrc += '.';
00181           __c = *(++__beg);
00182           __found_dec = true;
00183         }
00184       else if ((__c == __watoms[_M_e] || __c == __watoms[_M_E]) 
00185            && !__found_sci && __pos)
00186         {
00187           // Scientific notation.
00188           ++__pos;
00189           __xtrc += __ctype.narrow(__c, char());
00190           __c = *(++__beg);
00191 
00192           // Remove optional plus or minus sign, if they exist.
00193           if (__c == __plus || __c == __minus)
00194         {
00195           ++__pos;
00196           __xtrc += __ctype.narrow(__c, char());
00197           __c = *(++__beg);
00198         }
00199           __found_sci = true;
00200         }
00201       else
00202         // Not a valid input item.
00203         break;
00204         }
00205 
00206       // Digit grouping is checked. If grouping and found_grouping don't
00207       // match, then get very very upset, and set failbit.
00208       if (__check_grouping && __found_grouping.size())
00209         {
00210           // Add the ending grouping if a decimal wasn't found.
00211       if (!__found_dec)
00212         __found_grouping += static_cast<char>(__sep_pos);
00213           if (!__verify_grouping(__grouping, __found_grouping))
00214         __err |= ios_base::failbit;
00215         }
00216 
00217       // Finish up
00218       __xtrc += char();
00219       if (__beg == __end)
00220         __err |= ios_base::eofbit;
00221       return __beg;
00222     }
00223 
00224   // Stage 1: Determine a conversion specifier.
00225   template<typename _CharT, typename _InIter>
00226     _InIter
00227     num_get<_CharT, _InIter>::
00228     _M_extract_int(_InIter __beg, _InIter __end, ios_base& __io,
00229            ios_base::iostate& __err, string& __xtrc, int& __base) const
00230     {
00231       const locale __loc = __io.getloc();
00232       const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
00233       const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc);
00234  
00235       // NB: Iff __basefield == 0, this can change based on contents.
00236       ios_base::fmtflags __basefield = __io.flags() & ios_base::basefield;
00237       if (__basefield == ios_base::oct)
00238         __base = 8;
00239       else if (__basefield == ios_base::hex)
00240         __base = 16;
00241       else
00242     __base = 10;
00243 
00244      // First check for sign.
00245       int __pos = 0;
00246       char_type  __c = *__beg;
00247       if ((__c == __ctype.widen('+') || __c == __ctype.widen('-'))
00248       && __beg != __end)
00249     {
00250       __xtrc += __ctype.narrow(__c, char());
00251       ++__pos;
00252       __c = *(++__beg);
00253     }
00254 
00255       // Next, strip leading zeros and check required digits for base formats.
00256       const char_type __zero = __ctype.widen(_S_atoms[_M_zero]);
00257       const char_type __x = __ctype.widen('x');
00258       const char_type __X = __ctype.widen('X');
00259       if (__base == 10)
00260     {
00261       bool __found_zero = false;
00262       while (__c == __zero && __beg != __end)
00263         {
00264           __c = *(++__beg);
00265           __found_zero = true;
00266         }
00267       if (__found_zero)
00268         {
00269           __xtrc += _S_atoms[_M_zero];
00270           ++__pos;
00271           if (__basefield == 0)
00272         {         
00273           if ((__c == __x || __c == __X) && __beg != __end)
00274             {
00275               __xtrc += __ctype.narrow(__c, char());
00276               ++__pos;
00277               __c = *(++__beg);
00278               __base = 16;
00279             }
00280           else 
00281             __base = 8;
00282         }
00283         }
00284     }
00285       else if (__base == 16)
00286     {
00287       if (__c == __zero && __beg != __end)
00288         {
00289           __xtrc += _S_atoms[_M_zero];
00290           ++__pos;
00291           __c = *(++__beg); 
00292           if  ((__c == __x || __c == __X) && __beg != __end)
00293         {
00294           __xtrc += __ctype.narrow(__c, char());
00295           ++__pos;
00296           __c = *(++__beg);
00297         }
00298         }
00299     }
00300 
00301       // At this point, base is determined. If not hex, only allow
00302       // base digits as valid input.
00303       size_t __len;
00304       if (__base == 16)
00305     __len = _M_size;
00306       else
00307     __len = __base;
00308 
00309       // Extract.
00310       char_type __watoms[_M_size];
00311       __ctype.widen(_S_atoms, _S_atoms + __len, __watoms);
00312       string __found_grouping;
00313       const string __grouping = __np.grouping();
00314       bool __check_grouping = __grouping.size();
00315       int __sep_pos = 0;
00316       const char_type __sep = __np.thousands_sep();
00317       while (__beg != __end)
00318         {
00319       typedef char_traits<_CharT>   __traits_type;
00320           const char_type* __p = __traits_type::find(__watoms, __len,  __c);
00321 
00322           // NB: strchr returns true for __c == 0x0
00323           if (__p && __c)
00324         {
00325           // Try first for acceptable digit; record it if found.
00326           __xtrc += _S_atoms[__p - __watoms];
00327           ++__pos;
00328           ++__sep_pos;
00329           __c = *(++__beg);
00330         }
00331           else if (__c == __sep && __check_grouping)
00332         {
00333               // NB: Thousands separator at the beginning of a string
00334               // is a no-no, as is two consecutive thousands separators.
00335               if (__sep_pos)
00336                 {
00337                   __found_grouping += static_cast<char>(__sep_pos);
00338                   __sep_pos = 0;
00339           __c = *(++__beg);
00340                 }
00341               else
00342         {
00343           __err |= ios_base::failbit;
00344           break;
00345         }
00346             }
00347       else
00348         // Not a valid input item.
00349         break;
00350         }
00351 
00352       // Digit grouping is checked. If grouping and found_grouping don't
00353       // match, then get very very upset, and set failbit.
00354       if (__check_grouping && __found_grouping.size())
00355         {
00356           // Add the ending grouping.
00357           __found_grouping += static_cast<char>(__sep_pos);
00358           if (!__verify_grouping(__grouping, __found_grouping))
00359         __err |= ios_base::failbit;
00360         }
00361 
00362       // Finish up.
00363       __xtrc += char();
00364       if (__beg == __end)
00365         __err |= ios_base::eofbit;
00366       return __beg;
00367     }
00368 
00369 #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
00370   //17.  Bad bool parsing
00371   template<typename _CharT, typename _InIter>
00372     _InIter
00373     num_get<_CharT, _InIter>::
00374     do_get(iter_type __beg, iter_type __end, ios_base& __io,
00375            ios_base::iostate& __err, bool& __v) const
00376     {
00377       // Parse bool values as unsigned long
00378       if (!(__io.flags() & ios_base::boolalpha))
00379         {
00380           // NB: We can't just call do_get(long) here, as it might
00381           // refer to a derived class.
00382           string __xtrc;
00383           int __base;
00384           __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
00385 
00386       unsigned long __ul; 
00387       __convert_to_v(__xtrc.c_str(), __ul, __err, _S_c_locale, __base);
00388       if (!(__err & ios_base::failbit) && __ul <= 1)
00389         __v = __ul;
00390       else 
00391             __err |= ios_base::failbit;
00392         }
00393 
00394       // Parse bool values as alphanumeric
00395       else
00396         {
00397       typedef basic_string<_CharT> __string_type;
00398           locale __loc = __io.getloc();
00399       const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc); 
00400       const __string_type __true = __np.truename();
00401       const __string_type __false = __np.falsename();
00402           const char_type* __trues = __true.c_str();
00403           const char_type* __falses = __false.c_str();
00404           const size_t __truen =  __true.size() - 1;
00405           const size_t __falsen =  __false.size() - 1;
00406 
00407           for (size_t __n = 0; __beg != __end; ++__n)
00408             {
00409               char_type __c = *__beg++;
00410               bool __testf = __n <= __falsen ? __c == __falses[__n] : false;
00411               bool __testt = __n <= __truen ? __c == __trues[__n] : false;
00412               if (!(__testf || __testt))
00413                 {
00414                   __err |= ios_base::failbit;
00415                   break;
00416                 }
00417               else if (__testf && __n == __falsen)
00418                 {
00419                   __v = 0;
00420                   break;
00421                 }
00422               else if (__testt && __n == __truen)
00423                 {
00424                   __v = 1;
00425                   break;
00426                 }
00427             }
00428           if (__beg == __end)
00429             __err |= ios_base::eofbit;
00430         }
00431       return __beg;
00432     }
00433 #endif
00434 
00435   template<typename _CharT, typename _InIter>
00436     _InIter
00437     num_get<_CharT, _InIter>::
00438     do_get(iter_type __beg, iter_type __end, ios_base& __io,
00439            ios_base::iostate& __err, long& __v) const
00440     {
00441       string __xtrc;
00442       int __base;
00443       __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
00444       __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale, __base);
00445       return __beg;
00446     }
00447 
00448   template<typename _CharT, typename _InIter>
00449     _InIter
00450     num_get<_CharT, _InIter>::
00451     do_get(iter_type __beg, iter_type __end, ios_base& __io,
00452            ios_base::iostate& __err, unsigned short& __v) const
00453     {
00454       string __xtrc;
00455       int __base;
00456       __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
00457       unsigned long __ul;
00458       __convert_to_v(__xtrc.c_str(), __ul, __err, _S_c_locale, __base);
00459       if (!(__err & ios_base::failbit) 
00460       && __ul <= numeric_limits<unsigned short>::max())
00461     __v = static_cast<unsigned short>(__ul);
00462       else 
00463     __err |= ios_base::failbit;
00464       return __beg;
00465     }
00466 
00467   template<typename _CharT, typename _InIter>
00468     _InIter
00469     num_get<_CharT, _InIter>::
00470     do_get(iter_type __beg, iter_type __end, ios_base& __io,
00471            ios_base::iostate& __err, unsigned int& __v) const
00472     {
00473       string __xtrc;
00474       int __base;
00475       __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
00476       unsigned long __ul;
00477       __convert_to_v(__xtrc.c_str(), __ul, __err, _S_c_locale, __base);
00478       if (!(__err & ios_base::failbit) 
00479       && __ul <= numeric_limits<unsigned int>::max())
00480     __v = static_cast<unsigned int>(__ul);
00481       else 
00482     __err |= ios_base::failbit;
00483       return __beg;
00484     }
00485 
00486   template<typename _CharT, typename _InIter>
00487     _InIter
00488     num_get<_CharT, _InIter>::
00489     do_get(iter_type __beg, iter_type __end, ios_base& __io,
00490            ios_base::iostate& __err, unsigned long& __v) const
00491     {
00492       string __xtrc;
00493       int __base;
00494       __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
00495       __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale, __base);
00496       return __beg;
00497     }
00498 
00499 #ifdef _GLIBCPP_USE_LONG_LONG
00500   template<typename _CharT, typename _InIter>
00501     _InIter
00502     num_get<_CharT, _InIter>::
00503     do_get(iter_type __beg, iter_type __end, ios_base& __io,
00504            ios_base::iostate& __err, long long& __v) const
00505     {
00506       string __xtrc;
00507       int __base;
00508       __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
00509       __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale, __base);
00510       return __beg;
00511     }
00512 
00513   template<typename _CharT, typename _InIter>
00514     _InIter
00515     num_get<_CharT, _InIter>::
00516     do_get(iter_type __beg, iter_type __end, ios_base& __io,
00517            ios_base::iostate& __err, unsigned long long& __v) const
00518     {
00519       string __xtrc;
00520       int __base;
00521       __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
00522       __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale, __base);
00523       return __beg;
00524     }
00525 #endif
00526 
00527   template<typename _CharT, typename _InIter>
00528     _InIter
00529     num_get<_CharT, _InIter>::
00530     do_get(iter_type __beg, iter_type __end, ios_base& __io, 
00531        ios_base::iostate& __err, float& __v) const
00532     {
00533       string __xtrc;
00534       __xtrc.reserve(32);
00535       __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
00536       __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale);
00537       return __beg;
00538     }
00539 
00540   template<typename _CharT, typename _InIter>
00541     _InIter
00542     num_get<_CharT, _InIter>::
00543     do_get(iter_type __beg, iter_type __end, ios_base& __io,
00544            ios_base::iostate& __err, double& __v) const
00545     {
00546       string __xtrc;
00547       __xtrc.reserve(32);
00548       __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
00549       __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale);
00550       return __beg;
00551     }
00552 
00553   template<typename _CharT, typename _InIter>
00554     _InIter
00555     num_get<_CharT, _InIter>::
00556     do_get(iter_type __beg, iter_type __end, ios_base& __io,
00557            ios_base::iostate& __err, long double& __v) const
00558     {
00559       string __xtrc;
00560       __xtrc.reserve(32);
00561       __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc);
00562       __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale);
00563       return __beg;
00564     }
00565 
00566   template<typename _CharT, typename _InIter>
00567     _InIter
00568     num_get<_CharT, _InIter>::
00569     do_get(iter_type __beg, iter_type __end, ios_base& __io,
00570            ios_base::iostate& __err, void*& __v) const
00571     {
00572       // Prepare for hex formatted input
00573       typedef ios_base::fmtflags        fmtflags;
00574       fmtflags __fmt = __io.flags();
00575       fmtflags __fmtmask = ~(ios_base::showpos | ios_base::basefield
00576                              | ios_base::uppercase | ios_base::internal);
00577       __io.flags(__fmt & __fmtmask | (ios_base::hex | ios_base::showbase));
00578 
00579       string __xtrc;
00580       int __base;
00581       __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base);
00582 
00583       // Reset from hex formatted input
00584       __io.flags(__fmt);
00585 
00586       unsigned long __ul;
00587       __convert_to_v(__xtrc.c_str(), __ul, __err, _S_c_locale, __base);
00588       if (!(__err & ios_base::failbit))
00589     __v = reinterpret_cast<void*>(__ul);
00590       else 
00591     __err |= ios_base::failbit;
00592       return __beg;
00593     }
00594 
00595   // The following code uses snprintf (or sprintf(), when _GLIBCPP_USE_C99
00596   // is not defined) to convert floating point values for insertion into a
00597   // stream.  An optimization would be to replace them with code that works
00598   // directly on a wide buffer and then use __pad to do the padding.
00599   // It would be good to replace them anyway to gain back the efficiency
00600   // that C++ provides by knowing up front the type of the values to insert.
00601   // Also, sprintf is dangerous since may lead to accidental buffer overruns.
00602   // This implementation follows the C++ standard fairly directly as
00603   // outlined in 22.2.2.2 [lib.locale.num.put]
00604   template<typename _CharT, typename _OutIter>
00605     template<typename _ValueT>
00606       _OutIter
00607       num_put<_CharT, _OutIter>::
00608       _M_convert_float(_OutIter __s, ios_base& __io, _CharT __fill, char __mod,
00609                _ValueT __v) const
00610       {
00611     // Note: digits10 is rounded down.  We need to add 1 to ensure
00612     // we get the full available precision.
00613     const int __max_digits = numeric_limits<_ValueT>::digits10 + 1;
00614     streamsize __prec = __io.precision();
00615 
00616     if (__prec > static_cast<streamsize>(__max_digits))
00617       __prec = static_cast<streamsize>(__max_digits);
00618 
00619     // Long enough for the max format spec.
00620     char __fbuf[16];
00621 
00622     // [22.2.2.2.2] Stage 1, numeric conversion to character.
00623     int __len;
00624 #ifdef _GLIBCPP_USE_C99
00625     // First try a buffer perhaps big enough (for sure sufficient for
00626     // non-ios_base::fixed outputs)
00627     int __cs_size = __max_digits * 3;
00628     char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
00629 
00630     const bool __fp = _S_format_float(__io, __fbuf, __mod, __prec);
00631     if (__fp)
00632       __len = __convert_from_v(__cs, __cs_size, __fbuf, __v, 
00633                    _S_c_locale, __prec);
00634     else
00635       __len = __convert_from_v(__cs, __cs_size, __fbuf, __v, _S_c_locale);
00636 
00637     // If the buffer was not large enough, try again with the correct size.
00638     if (__len >= __cs_size)
00639       {
00640         __cs_size = __len + 1; 
00641         __cs = static_cast<char*>(__builtin_alloca(__cs_size));
00642         if (__fp)
00643           __len = __convert_from_v(__cs, __cs_size, __fbuf, __v, 
00644                        _S_c_locale, __prec);
00645         else
00646           __len = __convert_from_v(__cs, __cs_size, __fbuf, __v, 
00647                        _S_c_locale);
00648       }
00649 #else
00650     // Consider the possibility of long ios_base::fixed outputs
00651     const bool __fixed = __io.flags() & ios_base::fixed;
00652     const int __max_exp = numeric_limits<_ValueT>::max_exponent10;
00653     // ios_base::fixed outputs may need up to __max_exp+1 chars
00654     // for the integer part + up to __max_digits chars for the
00655     // fractional part + 3 chars for sign, decimal point, '\0'. On
00656     // the other hand, for non-fixed outputs __max_digits*3 chars
00657     // are largely sufficient.
00658     const int __cs_size = __fixed ? __max_exp + __max_digits + 4 
00659                                   : __max_digits * 3;
00660     char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
00661 
00662     if (_S_format_float(__io, __fbuf, __mod, __prec))
00663       __len = __convert_from_v(__cs, 0, __fbuf, __v, _S_c_locale, __prec);
00664     else
00665       __len = __convert_from_v(__cs, 0, __fbuf, __v, _S_c_locale);
00666 #endif
00667     return _M_widen_float(__s, __io, __fill, __cs, __len);
00668       }
00669 
00670   template<typename _CharT, typename _OutIter>
00671     template<typename _ValueT>
00672       _OutIter
00673       num_put<_CharT, _OutIter>::
00674       _M_convert_int(_OutIter __s, ios_base& __io, _CharT __fill, char __mod,
00675              char __modl, _ValueT __v) const
00676       {
00677     // [22.2.2.2.2] Stage 1, numeric conversion to character.
00678 
00679     // Long enough for the max format spec.
00680     char __fbuf[16];
00681     _S_format_int(__io, __fbuf, __mod, __modl);
00682 #ifdef _GLIBCPP_USE_C99
00683     // First try a buffer perhaps big enough.
00684     int __cs_size = 64;
00685     char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
00686     int __len = __convert_from_v(__cs, __cs_size, __fbuf, __v, 
00687                      _S_c_locale);
00688     // If the buffer was not large enough, try again with the correct size.
00689     if (__len >= __cs_size)
00690       {
00691         __cs_size = __len + 1;
00692         __cs = static_cast<char*>(__builtin_alloca(__cs_size));
00693         __len = __convert_from_v(__cs, __cs_size, __fbuf, __v, 
00694                      _S_c_locale);
00695       }
00696 #else
00697     // Leave room for "+/-," "0x," and commas. This size is
00698     // arbitrary, but should be largely sufficient.
00699     char __cs[128];
00700     int __len = __convert_from_v(__cs, 0, __fbuf, __v, _S_c_locale);
00701 #endif
00702     return _M_widen_int(__s, __io, __fill, __cs, __len);
00703       }
00704 
00705   template<typename _CharT, typename _OutIter>
00706     _OutIter
00707     num_put<_CharT, _OutIter>::
00708     _M_widen_float(_OutIter __s, ios_base& __io, _CharT __fill, char* __cs, 
00709            int __len) const
00710     {
00711       // [22.2.2.2.2] Stage 2, convert to char_type, using correct
00712       // numpunct.decimal_point() values for '.' and adding grouping.
00713       const locale __loc = __io.getloc();
00714       const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
00715       _CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) 
00716                                * __len));
00717       // Grouping can add (almost) as many separators as the number of
00718       // digits, but no more.
00719       _CharT* __ws2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) 
00720                                 * __len * 2));
00721       __ctype.widen(__cs, __cs + __len, __ws);
00722       
00723       // Replace decimal point.
00724       const _CharT* __p;
00725       const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc);
00726       if (__p = char_traits<_CharT>::find(__ws, __len, __ctype.widen('.')))
00727     __ws[__p - __ws] = __np.decimal_point();
00728 
00729 #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
00730 //282. What types does numpunct grouping refer to?
00731       // Add grouping, if necessary. 
00732       const string __grouping = __np.grouping();
00733       ios_base::fmtflags __basefield = __io.flags() & ios_base::basefield;
00734       if (__grouping.size())
00735     {
00736       _CharT* __p2;
00737       int __declen = __p ? __p - __ws : __len;
00738       __p2 = __add_grouping(__ws2, __np.thousands_sep(), 
00739                 __grouping.c_str(),
00740                 __grouping.c_str() + __grouping.size(),
00741                 __ws, __ws + __declen);
00742       int __newlen = __p2 - __ws2;
00743     
00744       // Tack on decimal part.
00745       if (__p)
00746         {
00747           char_traits<_CharT>::copy(__p2, __p, __len - __declen);
00748           __newlen += __len - __declen;
00749         }    
00750 
00751       // Switch strings, establish correct new length.
00752       __ws = __ws2;
00753       __len = __newlen;
00754     }
00755 #endif
00756       return _M_insert(__s, __io, __fill, __ws, __len);
00757     }
00758 
00759   template<typename _CharT, typename _OutIter>
00760     _OutIter
00761     num_put<_CharT, _OutIter>::
00762     _M_widen_int(_OutIter __s, ios_base& __io, _CharT __fill, char* __cs, 
00763          int __len) const
00764     {
00765       // [22.2.2.2.2] Stage 2, convert to char_type, using correct
00766       // numpunct.decimal_point() values for '.' and adding grouping.
00767       const locale __loc = __io.getloc();
00768       const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
00769       _CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) 
00770                                * __len));
00771       // Grouping can add (almost) as many separators as the number of
00772       // digits, but no more.
00773       _CharT* __ws2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) 
00774                                 * __len * 2));
00775       __ctype.widen(__cs, __cs + __len, __ws);
00776 
00777       // Add grouping, if necessary. 
00778       const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc);
00779       const string __grouping = __np.grouping();
00780       const ios_base::fmtflags __basefield = __io.flags() & ios_base::basefield;
00781       if (__grouping.size())
00782     {
00783       // By itself __add_grouping cannot deal correctly with __ws when
00784       // ios::showbase is set and ios_base::oct || ios_base::hex.
00785       // Therefore we take care "by hand" of the initial 0, 0x or 0X.
00786       streamsize __off = 0;
00787       if (__io.flags() & ios_base::showbase)
00788         if (__basefield == ios_base::oct)
00789           {
00790         __off = 1;
00791         *__ws2 = *__ws;
00792           }
00793         else if (__basefield == ios_base::hex)
00794           {
00795         __off = 2;
00796         *__ws2 = *__ws;
00797         *(__ws2 + 1) = *(__ws + 1);
00798           }
00799       _CharT* __p;
00800       __p = __add_grouping(__ws2 + __off, __np.thousands_sep(), 
00801                    __grouping.c_str(),
00802                    __grouping.c_str() + __grouping.size(),
00803                    __ws + __off, __ws + __len);
00804       __len = __p - __ws2;
00805       // Switch strings.
00806       __ws = __ws2;
00807     }
00808       return _M_insert(__s, __io, __fill, __ws, __len);
00809     }
00810 
00811   // For use by integer and floating-point types after they have been
00812   // converted into a char_type string.
00813   template<typename _CharT, typename _OutIter>
00814     _OutIter
00815     num_put<_CharT, _OutIter>::
00816     _M_insert(_OutIter __s, ios_base& __io, _CharT __fill, const _CharT* __ws, 
00817           int __len) const
00818     {
00819       // [22.2.2.2.2] Stage 3.
00820       streamsize __w = __io.width();
00821       _CharT* __ws2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) 
00822                                 * __w));
00823       if (__w > static_cast<streamsize>(__len))
00824     {
00825       __pad(__io, __fill, __ws2, __ws, __w, __len, true);
00826       __len = static_cast<int>(__w);
00827       // Switch strings.
00828       __ws = __ws2;
00829     }
00830       __io.width(0);
00831 
00832       // [22.2.2.2.2] Stage 4.
00833       // Write resulting, fully-formatted string to output iterator.
00834       for (int __j = 0; __j < __len; ++__j, ++__s)
00835     *__s = __ws[__j];
00836       return __s;
00837     }
00838 
00839   template<typename _CharT, typename _OutIter>
00840     _OutIter
00841     num_put<_CharT, _OutIter>::
00842     do_put(iter_type __s, ios_base& __io, char_type __fill, bool __v) const
00843     {
00844       ios_base::fmtflags __flags = __io.flags();
00845       if ((__flags & ios_base::boolalpha) == 0)
00846         {
00847           unsigned long __uv = __v;
00848           __s = _M_convert_int(__s, __io, __fill, 'u', char_type(), __uv);
00849         }
00850       else
00851         {
00852       typedef basic_string<_CharT> __string_type;
00853           locale __loc = __io.getloc();
00854       const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc); 
00855       __string_type __name;
00856           if (__v)
00857         __name = __np.truename();
00858           else
00859         __name = __np.falsename();
00860       __s = _M_insert(__s, __io, __fill, __name.c_str(), __name.size()); 
00861     }
00862       return __s;
00863     }
00864 
00865   template<typename _CharT, typename _OutIter>
00866     _OutIter
00867     num_put<_CharT, _OutIter>::
00868     do_put(iter_type __s, ios_base& __io, char_type __fill, long __v) const
00869     { return _M_convert_int(__s, __io, __fill, 'd', char_type(), __v); }
00870 
00871   template<typename _CharT, typename _OutIter>
00872     _OutIter
00873     num_put<_CharT, _OutIter>::
00874     do_put(iter_type __s, ios_base& __io, char_type __fill,
00875            unsigned long __v) const
00876     { return _M_convert_int(__s, __io, __fill, 'u', char_type(), __v); }
00877 
00878 #ifdef _GLIBCPP_USE_LONG_LONG
00879   template<typename _CharT, typename _OutIter>
00880     _OutIter
00881     num_put<_CharT, _OutIter>::
00882     do_put(iter_type __s, ios_base& __b, char_type __fill, long long __v) const
00883     { return _M_convert_int(__s, __b, __fill, 'd', 'l', __v); }
00884 
00885   template<typename _CharT, typename _OutIter>
00886     _OutIter
00887     num_put<_CharT, _OutIter>::
00888     do_put(iter_type __s, ios_base& __io, char_type __fill,
00889            unsigned long long __v) const
00890     { return _M_convert_int(__s, __io, __fill, 'u', 'l', __v); }
00891 #endif
00892 
00893   template<typename _CharT, typename _OutIter>
00894     _OutIter
00895     num_put<_CharT, _OutIter>::
00896     do_put(iter_type __s, ios_base& __io, char_type __fill, double __v) const
00897     { return _M_convert_float(__s, __io, __fill, char_type(), __v); }
00898 
00899   template<typename _CharT, typename _OutIter>
00900     _OutIter
00901     num_put<_CharT, _OutIter>::
00902     do_put(iter_type __s, ios_base& __io, char_type __fill, 
00903        long double __v) const
00904     { return _M_convert_float(__s, __io, __fill, 'L', __v); }
00905 
00906   template<typename _CharT, typename _OutIter>
00907     _OutIter
00908     num_put<_CharT, _OutIter>::
00909     do_put(iter_type __s, ios_base& __io, char_type __fill,
00910            const void* __v) const
00911     {
00912       ios_base::fmtflags __flags = __io.flags();
00913       ios_base::fmtflags __fmt = ~(ios_base::showpos | ios_base::basefield
00914                    | ios_base::uppercase | ios_base::internal);
00915       __io.flags(__flags & __fmt | (ios_base::hex | ios_base::showbase));
00916       try 
00917     {
00918       __s = _M_convert_int(__s, __io, __fill, 'u', char_type(),
00919                    reinterpret_cast<unsigned long>(__v));
00920       __io.flags(__flags);
00921     }
00922       catch (...) 
00923     {
00924       __io.flags(__flags);
00925       __throw_exception_again;
00926     }
00927       return __s;
00928     }
00929 
00930 
00931   template<typename _CharT, typename _InIter>
00932     _InIter
00933     money_get<_CharT, _InIter>::
00934     do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io, 
00935        ios_base::iostate& __err, long double& __units) const
00936     { 
00937       string_type __str;
00938       __beg = this->do_get(__beg, __end, __intl, __io, __err, __str); 
00939 
00940       const int __n = numeric_limits<long double>::digits10;
00941       char* __cs = static_cast<char*>(__builtin_alloca(__n));
00942       const locale __loc = __io.getloc();
00943       const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 
00944       const _CharT* __wcs = __str.c_str();
00945       __ctype.narrow(__wcs, __wcs + __str.size() + 1, char(), __cs);      
00946       __convert_to_v(__cs, __units, __err, _S_c_locale);
00947       return __beg;
00948     }
00949 
00950   template<typename _CharT, typename _InIter>
00951     _InIter
00952     money_get<_CharT, _InIter>::
00953     do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io, 
00954        ios_base::iostate& __err, string_type& __units) const
00955     { 
00956       // These contortions are quite unfortunate.
00957       typedef moneypunct<_CharT, true>      __money_true;
00958       typedef moneypunct<_CharT, false>     __money_false;
00959       typedef money_base::part          part;
00960       typedef typename string_type::size_type   size_type;
00961 
00962       const locale __loc = __io.getloc();
00963       const __money_true& __mpt = use_facet<__money_true>(__loc); 
00964       const __money_false& __mpf = use_facet<__money_false>(__loc); 
00965       const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 
00966 
00967       const money_base::pattern __p = __intl ? __mpt.neg_format() 
00968                          : __mpf.neg_format();
00969 
00970       const string_type __pos_sign =__intl ? __mpt.positive_sign() 
00971                        : __mpf.positive_sign();
00972       const string_type __neg_sign =__intl ? __mpt.negative_sign() 
00973                        : __mpf.negative_sign();
00974       const char_type __d = __intl ? __mpt.decimal_point() 
00975                            : __mpf.decimal_point();
00976       const char_type __sep = __intl ? __mpt.thousands_sep() 
00977                          : __mpf.thousands_sep();
00978 
00979       const string __grouping = __intl ? __mpt.grouping() : __mpf.grouping();
00980 
00981       // Set to deduced positive or negative sign, depending.
00982       string_type __sign;
00983       // String of grouping info from thousands_sep plucked from __units.
00984       string __grouping_tmp; 
00985       // Marker for thousands_sep position.
00986       int __sep_pos = 0;
00987       // If input iterator is in a valid state.
00988       bool __testvalid = true;
00989       // Flag marking when a decimal point is found.
00990       bool __testdecfound = false; 
00991 
00992       // The tentative returned string is stored here.
00993       string_type __temp_units;
00994 
00995       char_type __c = *__beg;
00996       char_type __eof = static_cast<char_type>(char_traits<char_type>::eof());
00997       for (int __i = 0; __beg != __end && __i < 4 && __testvalid; ++__i)
00998     {
00999       part __which = static_cast<part>(__p.field[__i]);
01000       switch (__which)
01001         {
01002         case money_base::symbol:
01003           if (__io.flags() & ios_base::showbase 
01004               || __i < 2 || __sign.size() > 1
01005               || ((static_cast<part>(__p.field[3]) != money_base::none)
01006               && __i == 2)) 
01007             {
01008               // According to 22.2.6.1.2.2, symbol is required
01009               // if (__io.flags() & ios_base::showbase),
01010               // otherwise is optional and consumed only if
01011               // other characters are needed to complete the
01012               // format.
01013               const string_type __symbol = __intl ? __mpt.curr_symbol()
01014                                  : __mpf.curr_symbol();
01015               size_type __len = __symbol.size();
01016               size_type __j = 0;
01017               while (__beg != __end 
01018                  && __j < __len && __symbol[__j] == __c)
01019             {
01020               __c = *(++__beg);
01021               ++__j;
01022             }
01023               // When (__io.flags() & ios_base::showbase)
01024               // symbol is required.
01025               if (__j != __len && (__io.flags() & ios_base::showbase))
01026             __testvalid = false;
01027             }
01028           break;
01029         case money_base::sign:          
01030           // Sign might not exist, or be more than one character long. 
01031           if (__pos_sign.size() && __neg_sign.size())
01032           {
01033             // Sign is mandatory.
01034             if (__c == __pos_sign[0])
01035               {
01036             __sign = __pos_sign;
01037             __c = *(++__beg);
01038               }
01039             else if (__c == __neg_sign[0])
01040               {
01041             __sign = __neg_sign;
01042             __c = *(++__beg);
01043               }
01044             else
01045               __testvalid = false;
01046           }
01047           else if (__pos_sign.size() && __c == __pos_sign[0])
01048             {
01049               __sign = __pos_sign;
01050               __c = *(++__beg);
01051             }
01052           else if (__neg_sign.size() && __c == __neg_sign[0])
01053             {
01054               __sign = __neg_sign;
01055               __c = *(++__beg);
01056             }
01057           break;
01058         case money_base::value:
01059           // Extract digits, remove and stash away the
01060           // grouping of found thousands separators.
01061           while (__beg != __end 
01062              && (__ctype.is(ctype_base::digit, __c) 
01063                  || (__c == __d && !__testdecfound)
01064                  || __c == __sep))
01065             {
01066               if (__c == __d)
01067             {
01068               __grouping_tmp += static_cast<char>(__sep_pos);
01069               __sep_pos = 0;
01070               __testdecfound = true;
01071             }
01072               else if (__c == __sep)
01073             {
01074               if (__grouping.size())
01075                 {
01076                   // Mark position for later analysis.
01077                   __grouping_tmp += static_cast<char>(__sep_pos);
01078                   __sep_pos = 0;
01079                 }
01080               else
01081                 {
01082                   __testvalid = false;
01083                   break;
01084                 }
01085             }
01086               else
01087             {
01088               __temp_units += __c;
01089               ++__sep_pos;
01090             }
01091               __c = *(++__beg);
01092             }
01093           break;
01094         case money_base::space:
01095         case money_base::none:
01096           // Only if not at the end of the pattern.
01097           if (__i != 3)
01098             while (__beg != __end 
01099                && __ctype.is(ctype_base::space, __c))
01100               __c = *(++__beg);
01101           break;
01102         }
01103     }
01104 
01105       // Need to get the rest of the sign characters, if they exist.
01106       if (__sign.size() > 1)
01107     {
01108       size_type __len = __sign.size();
01109       size_type __i = 1;
01110       for (; __c != __eof && __i < __len; ++__i)
01111         while (__beg != __end && __c != __sign[__i])
01112           __c = *(++__beg);
01113       
01114       if (__i != __len)
01115         __testvalid = false;
01116     }
01117 
01118       // Strip leading zeros.
01119       while (__temp_units[0] == __ctype.widen('0'))
01120     __temp_units.erase(__temp_units.begin());
01121 
01122       if (__sign.size() && __sign == __neg_sign)
01123     __temp_units.insert(__temp_units.begin(), __ctype.widen('-'));
01124 
01125       // Test for grouping fidelity.
01126       if (__grouping.size() && __grouping_tmp.size())
01127     {
01128       if (!__verify_grouping(__grouping, __grouping_tmp))
01129         __testvalid = false;
01130     }
01131 
01132       // Iff no more characters are available.      
01133       if (__c == __eof)
01134     __err |= ios_base::eofbit;
01135 
01136       // Iff valid sequence is not recognized.
01137       if (!__testvalid || !__temp_units.size())
01138     __err |= ios_base::failbit;
01139       else
01140     // Use the "swap trick" to copy __temp_units into __units.
01141     __temp_units.swap(__units);
01142 
01143       return __beg; 
01144     }
01145 
01146   template<typename _CharT, typename _OutIter>
01147     _OutIter
01148     money_put<_CharT, _OutIter>::
01149     do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
01150        long double __units) const
01151     { 
01152       const locale __loc = __io.getloc();
01153       const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
01154 #ifdef _GLIBCPP_USE_C99
01155       // First try a buffer perhaps big enough.
01156       int __cs_size = 64;
01157       char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
01158       int __len = __convert_from_v(__cs, __cs_size, "%.01Lf", __units, 
01159                    _S_c_locale);
01160       // If the buffer was not large enough, try again with the correct size.
01161       if (__len >= __cs_size)
01162     {
01163       __cs_size = __len + 1;
01164       __cs = static_cast<char*>(__builtin_alloca(__cs_size));
01165       __len = __convert_from_v(__cs, __cs_size, "%.01Lf", __units, 
01166                    _S_c_locale);
01167     }
01168 #else
01169       // max_exponent10 + 1 for the integer part, + 4 for sign, decimal point,
01170       // decimal digit, '\0'. 
01171       const int __cs_size = numeric_limits<long double>::max_exponent10 + 5;
01172       char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
01173       int __len = __convert_from_v(__cs, 0, "%.01Lf", __units, _S_c_locale);
01174 #endif
01175       _CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __cs_size));
01176       __ctype.widen(__cs, __cs + __len, __ws);
01177       string_type __digits(__ws);
01178       return this->do_put(__s, __intl, __io, __fill, __digits); 
01179     }
01180 
01181   template<typename _CharT, typename _OutIter>
01182     _OutIter
01183     money_put<_CharT, _OutIter>::
01184     do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
01185        const string_type& __digits) const
01186     { 
01187       typedef typename string_type::size_type   size_type;
01188       typedef money_base::part          part;
01189 
01190       const locale __loc = __io.getloc();
01191       const size_type __width = static_cast<size_type>(__io.width());
01192 
01193       // These contortions are quite unfortunate.
01194       typedef moneypunct<_CharT, true> __money_true;
01195       typedef moneypunct<_CharT, false> __money_false;
01196       const __money_true& __mpt = use_facet<__money_true>(__loc); 
01197       const __money_false& __mpf = use_facet<__money_false>(__loc); 
01198       const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 
01199 
01200       // Determine if negative or positive formats are to be used, and
01201       // discard leading negative_sign if it is present.
01202       const char_type* __beg = __digits.data();
01203       const char_type* __end = __beg + __digits.size();
01204       money_base::pattern __p;
01205       string_type __sign;
01206       if (*__beg != __ctype.widen('-'))
01207     {
01208       __p = __intl ? __mpt.pos_format() : __mpf.pos_format();
01209       __sign =__intl ? __mpt.positive_sign() : __mpf.positive_sign();
01210     }
01211       else
01212     {
01213       __p = __intl ? __mpt.neg_format() : __mpf.neg_format();
01214       __sign =__intl ? __mpt.negative_sign() : __mpf.negative_sign();
01215       ++__beg;
01216     }
01217       
01218       // Look for valid numbers in the current ctype facet within input digits.
01219       __end = __ctype.scan_not(ctype_base::digit, __beg, __end);
01220       if (__beg != __end)
01221     {
01222       // Assume valid input, and attempt to format.
01223       // Break down input numbers into base components, as follows:
01224       //   final_value = grouped units + (decimal point) + (digits)
01225       string_type __res;
01226       string_type __value;
01227       const string_type __symbol = __intl ? __mpt.curr_symbol() 
01228                               : __mpf.curr_symbol();
01229 
01230       // Deal with decimal point, decimal digits.
01231       const int __frac = __intl ? __mpt.frac_digits() 
01232                         : __mpf.frac_digits();
01233       if (__frac > 0)
01234         {
01235           const char_type __d = __intl ? __mpt.decimal_point() 
01236                        : __mpf.decimal_point();
01237           if (__end - __beg >= __frac)
01238         {
01239           __value = string_type(__end - __frac, __end);
01240           __value.insert(__value.begin(), __d);
01241           __end -= __frac;
01242         }
01243           else
01244         {
01245           // Have to pad zeros in the decimal position.
01246           __value = string_type(__beg, __end);
01247           int __paddec = __frac - (__end - __beg);
01248           char_type __zero = __ctype.widen('0');
01249           __value.insert(__value.begin(), __paddec, __zero);
01250           __value.insert(__value.begin(), __d);
01251           __beg = __end;
01252         }
01253         }
01254 
01255       // Add thousands separators to non-decimal digits, per
01256       // grouping rules.
01257       if (__beg != __end)
01258         {
01259           const string __grouping = __intl ? __mpt.grouping() 
01260                            : __mpf.grouping();
01261           if (__grouping.size())
01262         {
01263           const char_type __sep = __intl ? __mpt.thousands_sep() 
01264                                  : __mpf.thousands_sep();
01265           const char* __gbeg = __grouping.c_str();
01266           const char* __gend = __gbeg + __grouping.size();
01267           const int __n = (__end - __beg) * 2;
01268           _CharT* __ws2 =
01269             static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __n));
01270           _CharT* __ws_end = __add_grouping(__ws2, __sep, __gbeg, 
01271                             __gend, __beg, __end);
01272           __value.insert(0, __ws2, __ws_end - __ws2);
01273         }
01274           else
01275         __value.insert(0, string_type(__beg, __end));
01276         }
01277 
01278       // Calculate length of resulting string.
01279       ios_base::fmtflags __f = __io.flags() & ios_base::adjustfield;
01280       size_type __len = __value.size() + __sign.size();
01281       __len += (__io.flags() & ios_base::showbase) ? __symbol.size() : 0;
01282       bool __testipad = __f == ios_base::internal && __len < __width;
01283 
01284       // Fit formatted digits into the required pattern.
01285       for (int __i = 0; __i < 4; ++__i)
01286         {
01287           part __which = static_cast<part>(__p.field[__i]);
01288           switch (__which)
01289         {
01290         case money_base::symbol:
01291           if (__io.flags() & ios_base::showbase)
01292             __res += __symbol;
01293           break;
01294         case money_base::sign:          
01295           // Sign might not exist, or be more than one
01296           // charater long. In that case, add in the rest
01297           // below.
01298           if (__sign.size())
01299             __res += __sign[0];
01300           break;
01301         case money_base::value:
01302           __res += __value;
01303           break;
01304         case money_base::space:
01305           // At least one space is required, but if internal
01306           // formatting is required, an arbitrary number of
01307           // fill spaces will be necessary.
01308           if (__testipad)
01309             __res += string_type(__width - __len, __fill);
01310           else
01311             __res += __ctype.widen(__fill);
01312           break;
01313         case money_base::none:
01314           if (__testipad)
01315             __res += string_type(__width - __len, __fill);
01316           break;
01317         }
01318         }
01319 
01320       // Special case of multi-part sign parts.
01321       if (__sign.size() > 1)
01322         __res += string_type(__sign.begin() + 1, __sign.end());
01323 
01324       // Pad, if still necessary.
01325       __len = __res.size();
01326       if (__width > __len)
01327         {
01328           if (__f == ios_base::left)
01329         // After.
01330         __res.append(__width - __len, __fill);
01331           else
01332         // Before.
01333         __res.insert(0, string_type(__width - __len, __fill));
01334           __len = __width;
01335         }
01336 
01337       // Write resulting, fully-formatted string to output iterator.
01338       for (size_type __j = 0; __j < __len; ++__j, ++__s)
01339         *__s = __res[__j];
01340     }
01341       __io.width(0);
01342       return __s; 
01343     }
01344 
01345 
01346   // NB: Not especially useful. Without an ios_base object or some
01347   // kind of locale reference, we are left clawing at the air where
01348   // the side of the mountain used to be...
01349   template<typename _CharT, typename _InIter>
01350     time_base::dateorder
01351     time_get<_CharT, _InIter>::do_date_order() const
01352     { return time_base::no_order; }
01353 
01354   template<typename _CharT, typename _InIter>
01355     void
01356     time_get<_CharT, _InIter>::
01357     _M_extract_via_format(iter_type& __beg, iter_type& __end, ios_base& __io,
01358               ios_base::iostate& __err, tm* __tm, 
01359               const _CharT* __format) const
01360     {  
01361       locale __loc = __io.getloc();
01362       __timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc);
01363       const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 
01364       size_t __len = char_traits<_CharT>::length(__format);
01365 
01366       for (size_t __i = 0; __beg != __end && __i < __len && !__err; ++__i)
01367     {
01368       char __c = __format[__i];
01369       if (__c == '%')
01370         {
01371           // Verify valid formatting code, attempt to extract.
01372           __c = __format[++__i];
01373           char __mod = 0;
01374           int __mem = 0; 
01375           if (__c == 'E' || __c == 'O')
01376         {
01377           __mod = __c;
01378           __c = __format[++__i];
01379         }
01380           switch (__c)
01381         {
01382           const char* __cs;
01383           _CharT __wcs[10];
01384         case 'a':
01385           // Abbreviated weekday name [tm_wday]
01386           const char_type*  __days1[7];
01387           __tp._M_days_abbreviated(__days1);
01388           _M_extract_name(__beg, __end, __tm->tm_wday, __days1, 7, 
01389                   __err);
01390           break;
01391         case 'A':
01392           // Weekday name [tm_wday].
01393           const char_type*  __days2[7];
01394           __tp._M_days(__days2);
01395           _M_extract_name(__beg, __end, __tm->tm_wday, __days2, 7, 
01396                   __err);
01397           break;
01398         case 'h':
01399         case 'b':
01400           // Abbreviated month name [tm_mon]
01401           const char_type*  __months1[12];
01402           __tp._M_months_abbreviated(__months1);
01403           _M_extract_name(__beg, __end, __tm->tm_mon, __months1, 12, 
01404                   __err);
01405           break;
01406         case 'B':
01407           // Month name [tm_mon].
01408           const char_type*  __months2[12];
01409           __tp._M_months(__months2);
01410           _M_extract_name(__beg, __end, __tm->tm_mon, __months2, 12, 
01411                   __err);
01412           break;
01413         case 'c':
01414           // Default time and date representation.
01415           const char_type*  __dt[2];
01416           __tp._M_date_time_formats(__dt);
01417           _M_extract_via_format(__beg, __end, __io, __err, __tm, 
01418                     __dt[0]);
01419           break;
01420         case 'd':
01421           // Day [01, 31]. [tm_mday]
01422           _M_extract_num(__beg, __end, __tm->tm_mday, 1, 31, 2, 
01423                  __ctype, __err);
01424           break;
01425         case 'D':
01426           // Equivalent to %m/%d/%y.[tm_mon, tm_mday, tm_year]
01427           __cs = "%m/%d/%y";
01428           __ctype.widen(__cs, __cs + 9, __wcs);
01429           _M_extract_via_format(__beg, __end, __io, __err, __tm, 
01430                     __wcs);
01431           break;
01432         case 'H':
01433           // Hour [00, 23]. [tm_hour]
01434           _M_extract_num(__beg, __end, __tm->tm_hour, 0, 23, 2,
01435                  __ctype, __err);
01436           break;
01437         case 'I':
01438           // Hour [01, 12]. [tm_hour]
01439           _M_extract_num(__beg, __end, __tm->tm_hour, 1, 12, 2, 
01440                  __ctype, __err);
01441           break;
01442         case 'm':
01443           // Month [01, 12]. [tm_mon]
01444           _M_extract_num(__beg, __end, __mem, 1, 12, 2, __ctype, 
01445                  __err);
01446           if (!__err)
01447             __tm->tm_mon = __mem - 1;
01448           break;
01449         case 'M':
01450           // Minute [00, 59]. [tm_min]
01451           _M_extract_num(__beg, __end, __tm->tm_min, 0, 59, 2,
01452                  __ctype, __err);
01453           break;
01454         case 'n':
01455           if (__ctype.narrow(*__beg, 0) == '\n')
01456             ++__beg;
01457           else
01458             __err |= ios_base::failbit;
01459           break;
01460         case 'R':
01461           // Equivalent to (%H:%M).
01462           __cs = "%H:%M";
01463           __ctype.widen(__cs, __cs + 6, __wcs);
01464           _M_extract_via_format(__beg, __end, __io, __err, __tm, 
01465                     __wcs);
01466           break;
01467         case 'S':
01468           // Seconds.
01469           _M_extract_num(__beg, __end, __tm->tm_sec, 0, 59, 2,
01470                  __ctype, __err);
01471           break;
01472         case 't':
01473           if (__ctype.narrow(*__beg, 0) == '\t')
01474             ++__beg;
01475           else
01476         __err |= ios_base::failbit;
01477           break;
01478         case 'T':
01479           // Equivalent to (%H:%M:%S).
01480           __cs = "%H:%M:%S";
01481           __ctype.widen(__cs, __cs + 9, __wcs);
01482           _M_extract_via_format(__beg, __end, __io, __err, __tm, 
01483                     __wcs);
01484           break;
01485         case 'x':
01486           // Locale's date.
01487           const char_type*  __dates[2];
01488           __tp._M_date_formats(__dates);
01489           _M_extract_via_format(__beg, __end, __io, __err, __tm, 
01490                     __dates[0]);
01491           break;
01492         case 'X':
01493           // Locale's time.
01494           const char_type*  __times[2];
01495           __tp._M_time_formats(__times);
01496           _M_extract_via_format(__beg, __end, __io, __err, __tm, 
01497                     __times[0]);
01498           break;
01499         case 'y':
01500           // Two digit year. [tm_year]
01501           _M_extract_num(__beg, __end, __tm->tm_year, 0, 99, 2, 
01502                  __ctype, __err);
01503           break;
01504         case 'Y':
01505           // Year [1900). [tm_year]
01506           _M_extract_num(__beg, __end, __mem, 0, 
01507                  numeric_limits<int>::max(), 4, 
01508                  __ctype, __err);
01509           if (!__err)
01510             __tm->tm_year = __mem - 1900;
01511           break;
01512         case 'Z':
01513           // Timezone info.
01514           if (__ctype.is(ctype_base::upper, *__beg))
01515             {
01516               int __tmp;
01517               _M_extract_name(__beg, __end, __tmp, 
01518                       __timepunct<_CharT>::_S_timezones, 
01519                       14, __err);
01520               
01521               // GMT requires special effort.
01522               char_type __c = *__beg;
01523               if (!__err && __tmp == 0 
01524               && (__c == __ctype.widen('-') 
01525                   || __c == __ctype.widen('+')))
01526             {
01527               _M_extract_num(__beg, __end, __tmp, 0, 23, 2,
01528                       __ctype, __err);
01529               _M_extract_num(__beg, __end, __tmp, 0, 59, 2,
01530                       __ctype, __err);
01531             }       
01532               }
01533               else
01534             __err |= ios_base::failbit;
01535               break;
01536             default:
01537               // Not recognized.
01538               __err |= ios_base::failbit;
01539             }
01540         }
01541           else
01542         {
01543           // Verify format and input match, extract and discard.
01544           if (__c == __ctype.narrow(*__beg, 0))
01545             ++__beg;
01546           else
01547             __err |= ios_base::failbit;
01548         }
01549     }
01550     }
01551 
01552   template<typename _CharT, typename _InIter>
01553     void
01554     time_get<_CharT, _InIter>::
01555     _M_extract_num(iter_type& __beg, iter_type& __end, int& __member,
01556            int __min, int __max, size_t __len, 
01557            const ctype<_CharT>& __ctype, 
01558            ios_base::iostate& __err) const
01559     {
01560       size_t __i = 0;
01561       string __digits;
01562       bool __testvalid = true;
01563       char_type __c = *__beg;
01564       while (__beg != __end && __i < __len 
01565          && __ctype.is(ctype_base::digit, __c)) 
01566     {
01567       __digits += __ctype.narrow(__c, 0);
01568       __c = *(++__beg);
01569       ++__i;
01570     }
01571       if (__i == __len)
01572     {
01573       int __value = atoi(__digits.c_str());
01574       if (__min <= __value && __value <= __max)
01575         __member = __value;
01576       else
01577         __testvalid = false;
01578     }
01579       else
01580     __testvalid = false;
01581       if (!__testvalid)
01582     __err |= ios_base::failbit;
01583     }
01584 
01585   // Assumptions:
01586   // All elements in __names are unique.
01587   template<typename _CharT, typename _InIter>
01588     void
01589     time_get<_CharT, _InIter>::
01590     _M_extract_name(iter_type& __beg, iter_type& __end, int& __member,
01591             const _CharT** __names, size_t __indexlen, 
01592             ios_base::iostate& __err) const
01593     {
01594       typedef char_traits<char_type> __traits_type;
01595       int* __matches = static_cast<int*>(__builtin_alloca(sizeof(int) * __indexlen));
01596       size_t __nmatches = 0;
01597       size_t __pos = 0;
01598       bool __testvalid = true;
01599       const char_type* __name;
01600 
01601       char_type __c = *__beg;
01602       // Look for initial matches.
01603       for (size_t __i1 = 0; __i1 < __indexlen; ++__i1)
01604     if (__c == __names[__i1][0])
01605       __matches[__nmatches++] = __i1;
01606       
01607       while(__nmatches > 1)
01608     {
01609       // Find smallest matching string.
01610       size_t __minlen = 10;
01611       for (size_t __i2 = 0; __i2 < __nmatches; ++__i2)
01612         __minlen = min(__minlen, 
01613                __traits_type::length(__names[__matches[__i2]]));
01614       
01615       if (__pos < __minlen && __beg != __end)
01616         {
01617           ++__pos;
01618           __c = *(++__beg);
01619           for (size_t __i3 = 0; __i3 < __nmatches; ++__i3)
01620         {
01621           __name = __names[__matches[__i3]];
01622           if (__name[__pos] != __c)
01623             __matches[__i3] = __matches[--__nmatches];
01624         }
01625         }
01626       else
01627         break;
01628     }
01629 
01630       if (__nmatches == 1)
01631     {
01632       // Make sure found name is completely extracted.
01633       __name = __names[__matches[0]];
01634       const size_t __len = __traits_type::length(__name);
01635       while (__pos < __len && __beg != __end && __name[__pos] == *__beg)
01636         ++__beg, ++__pos;
01637 
01638       if (__len == __pos)
01639         __member = __matches[0];
01640       else
01641         __testvalid = false;
01642     }
01643       else
01644     __testvalid = false;
01645       if (!__testvalid)
01646     __err |= ios_base::failbit;
01647     }
01648 
01649   template<typename _CharT, typename _InIter>
01650     _InIter
01651     time_get<_CharT, _InIter>::
01652     do_get_time(iter_type __beg, iter_type __end, ios_base& __io,
01653         ios_base::iostate& __err, tm* __tm) const
01654     {
01655       _CharT __wcs[3];
01656       const char* __cs = "%X";
01657       locale __loc = __io.getloc();
01658       ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
01659       __ctype.widen(__cs, __cs + 3, __wcs);
01660       _M_extract_via_format(__beg, __end, __io, __err, __tm, __wcs);
01661       if (__beg == __end)
01662     __err |= ios_base::eofbit;
01663       return __beg;
01664     }
01665 
01666   template<typename _CharT, typename _InIter>
01667     _InIter
01668     time_get<_CharT, _InIter>::
01669     do_get_date(iter_type __beg, iter_type __end, ios_base& __io,
01670         ios_base::iostate& __err, tm* __tm) const
01671     {
01672       _CharT __wcs[3];
01673       const char* __cs = "%x";
01674       locale __loc = __io.getloc();
01675       ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
01676       __ctype.widen(__cs, __cs + 3, __wcs);
01677       _M_extract_via_format(__beg, __end, __io, __err, __tm, __wcs);
01678       if (__beg == __end)
01679     __err |= ios_base::eofbit;
01680       return __beg;
01681     }
01682 
01683   template<typename _CharT, typename _InIter>
01684     _InIter
01685     time_get<_CharT, _InIter>::
01686     do_get_weekday(iter_type __beg, iter_type __end, ios_base& __io, 
01687            ios_base::iostate& __err, tm* __tm) const
01688     {
01689       typedef char_traits<char_type> __traits_type;
01690       locale __loc = __io.getloc();
01691       __timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc);
01692       const char_type*  __days[7];
01693       __tp._M_days_abbreviated(__days);
01694       int __tmpwday;
01695       _M_extract_name(__beg, __end, __tmpwday, __days, 7, __err);
01696 
01697       // Check to see if non-abbreviated name exists, and extract.
01698       // NB: Assumes both _M_days and _M_days_abbreviated organized in
01699       // exact same order, first to last, such that the resulting
01700       // __days array with the same index points to a day, and that
01701       // day's abbreviated form.
01702       // NB: Also assumes that an abbreviated name is a subset of the name. 
01703       if (!__err)
01704     {
01705       size_t __pos = __traits_type::length(__days[__tmpwday]);
01706       __tp._M_days(__days);
01707       const char_type* __name = __days[__tmpwday];
01708       if (__name[__pos] == *__beg)
01709         {
01710           // Extract the rest of it.
01711           const size_t __len = __traits_type::length(__name);
01712           while (__pos < __len && __beg != __end 
01713              && __name[__pos] == *__beg)
01714         ++__beg, ++__pos;
01715           if (__len != __pos)
01716         __err |= ios_base::failbit;
01717         }
01718       if (!__err)
01719         __tm->tm_wday = __tmpwday;
01720     }
01721       if (__beg == __end)
01722     __err |= ios_base::eofbit;
01723       return __beg;
01724      }
01725 
01726   template<typename _CharT, typename _InIter>
01727     _InIter
01728     time_get<_CharT, _InIter>::
01729     do_get_monthname(iter_type __beg, iter_type __end,
01730                      ios_base& __io, ios_base::iostate& __err, tm* __tm) const
01731     {
01732       typedef char_traits<char_type> __traits_type;
01733       locale __loc = __io.getloc();
01734       __timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc);
01735       const char_type*  __months[12];
01736       __tp._M_months_abbreviated(__months);
01737       int __tmpmon;
01738       _M_extract_name(__beg, __end, __tmpmon, __months, 12, __err);
01739 
01740       // Check to see if non-abbreviated name exists, and extract.
01741       // NB: Assumes both _M_months and _M_months_abbreviated organized in
01742       // exact same order, first to last, such that the resulting
01743       // __months array with the same index points to a month, and that
01744       // month's abbreviated form.
01745       // NB: Also assumes that an abbreviated name is a subset of the name. 
01746       if (!__err)
01747     {
01748       size_t __pos = __traits_type::length(__months[__tmpmon]);
01749       __tp._M_months(__months);
01750       const char_type* __name = __months[__tmpmon];
01751       if (__name[__pos] == *__beg)
01752         {
01753           // Extract the rest of it.
01754           const size_t __len = __traits_type::length(__name);
01755           while (__pos < __len && __beg != __end 
01756              && __name[__pos] == *__beg)
01757         ++__beg, ++__pos;
01758           if (__len != __pos)
01759         __err |= ios_base::failbit;
01760         }
01761       if (!__err)
01762         __tm->tm_mon = __tmpmon;
01763     }
01764  
01765       if (__beg == __end)
01766     __err |= ios_base::eofbit;
01767       return __beg;
01768     }
01769 
01770   template<typename _CharT, typename _InIter>
01771     _InIter
01772     time_get<_CharT, _InIter>::
01773     do_get_year(iter_type __beg, iter_type __end, ios_base& __io, 
01774         ios_base::iostate& __err, tm* __tm) const
01775     {
01776       locale __loc = __io.getloc();
01777       const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 
01778 
01779       char_type __c = *__beg;
01780       size_t __i = 0;
01781       string __digits;
01782       while (__i < 4 && __beg != __end && __ctype.is(ctype_base::digit, __c))
01783     {
01784       __digits += __ctype.narrow(__c, 0);
01785       __c = *(++__beg);
01786       ++__i;
01787     }
01788       if (__i == 2 || __i == 4)
01789     {
01790       long __l;
01791       __convert_to_v(__digits.c_str(), __l, __err, _S_c_locale);
01792       if (!(__err & ios_base::failbit) && __l <= INT_MAX)
01793         {
01794           __l = __i == 2 ? __l : __l - 1900; 
01795           __tm->tm_year = static_cast<int>(__l);
01796         }
01797     }
01798       else
01799     __err |= ios_base::failbit;
01800       if (__beg == __end)
01801     __err |= ios_base::eofbit;
01802       return __beg;
01803     }
01804 
01805   template<typename _CharT, typename _OutIter>
01806     _OutIter
01807     time_put<_CharT, _OutIter>::
01808     put(iter_type __s, ios_base& __io, char_type, const tm* __tm, 
01809     const _CharT* __beg, const _CharT* __end) const
01810     {
01811       locale __loc = __io.getloc();
01812       ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
01813       while (__beg != __end)
01814     {
01815       char __c = __ctype.narrow(*__beg, 0);
01816       ++__beg;
01817       if (__c == '%')
01818         {
01819           char __format;
01820           char __mod = 0;
01821           size_t __len = 1; 
01822           __c = __ctype.narrow(*__beg, 0);
01823           ++__beg;
01824           if (__c == 'E' || __c == 'O')
01825         {
01826           __mod = __c;
01827           __format = __ctype.narrow(*__beg, 0);
01828           ++__beg;
01829         }
01830           else
01831         __format = __c;
01832           __s = this->do_put(__s, __io, char_type(), __tm, __format, 
01833                  __mod);
01834         }
01835       else
01836         {
01837           *__s = __c;
01838           ++__s;
01839         }
01840     }
01841       return __s;
01842     }
01843 
01844   template<typename _CharT, typename _OutIter>
01845     _OutIter
01846     time_put<_CharT, _OutIter>::
01847     do_put(iter_type __s, ios_base& __io, char_type, const tm* __tm, 
01848        char __format, char __mod) const
01849     { 
01850       locale __loc = __io.getloc();
01851       ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
01852       __timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc);
01853 
01854       // NB: This size is arbitrary. Should this be a data member,
01855       // initialized at construction?
01856       const size_t __maxlen = 64;
01857       char_type* __res =
01858     static_cast<char_type*>(__builtin_alloca(sizeof(char_type) * __maxlen));
01859 
01860       // NB: In IEE 1003.1-200x, and perhaps other locale models, it
01861       // is possible that the format character will be longer than one
01862       // character. Possibilities include 'E' or 'O' followed by a
01863       // format character: if __mod is not the default argument, assume
01864       // it's a valid modifier.
01865       char_type __fmt[4];
01866       __fmt[0] = __ctype.widen('%'); 
01867       if (!__mod)
01868     {
01869       __fmt[1] = __format;
01870       __fmt[2] = char_type();
01871     }
01872       else
01873     {
01874       __fmt[1] = __mod;
01875       __fmt[2] = __format;
01876       __fmt[3] = char_type();
01877     }
01878 
01879       __tp._M_put(__res, __maxlen, __fmt, __tm);
01880 
01881       // Write resulting, fully-formatted string to output iterator.
01882       size_t __len = char_traits<char_type>::length(__res);
01883       for (size_t __i = 0; __i < __len; ++__i, ++__s)
01884     *__s = __res[__i];
01885       return __s;
01886     }
01887 
01888 
01889   // Generic version does nothing.
01890   template<typename _CharT>
01891     int
01892     collate<_CharT>::_M_compare(const _CharT*, const _CharT*) const
01893     { return 0; }
01894 
01895   // Generic version does nothing.
01896   template<typename _CharT>
01897     size_t
01898     collate<_CharT>::_M_transform(_CharT*, const _CharT*, size_t) const
01899     { return 0; }
01900 
01901   template<typename _CharT>
01902     int
01903     collate<_CharT>::
01904     do_compare(const _CharT* __lo1, const _CharT* __hi1, 
01905            const _CharT* __lo2, const _CharT* __hi2) const
01906     { 
01907       const string_type __one(__lo1, __hi1);
01908       const string_type __two(__lo2, __hi2);
01909       return _M_compare(__one.c_str(), __two.c_str());
01910     }
01911 
01912  template<typename _CharT>
01913     typename collate<_CharT>::string_type
01914     collate<_CharT>::
01915     do_transform(const _CharT* __lo, const _CharT* __hi) const
01916     {
01917       size_t __len = (__hi - __lo) * 2;
01918       // First try a buffer perhaps big enough.
01919       _CharT* __c =
01920     static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __len));
01921       size_t __res = _M_transform(__c, __lo, __len);
01922       // If the buffer was not large enough, try again with the correct size.
01923       if (__res >= __len)
01924     {
01925       __c =
01926         static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * (__res + 1)));
01927       _M_transform(__c, __lo, __res + 1);
01928     }
01929       return string_type(__c);
01930     }
01931 
01932  template<typename _CharT>
01933     long
01934     collate<_CharT>::
01935     do_hash(const _CharT* __lo, const _CharT* __hi) const
01936     { 
01937       unsigned long __val = 0;
01938       for (; __lo < __hi; ++__lo)
01939     __val = *__lo + ((__val << 7) | 
01940                (__val >> (numeric_limits<unsigned long>::digits - 7)));
01941       return static_cast<long>(__val);
01942     }
01943 
01944   // Convert string to numeric value of type _Tv and store results.  
01945   // NB: This is specialized for all required types, there is no
01946   // generic definition.
01947   template<typename _Tv>
01948     void
01949     __convert_to_v(const char* __in, _Tv& __out, ios_base::iostate& __err, 
01950            const __c_locale& __cloc, int __base = 10);
01951 
01952   // Convert numeric value of type _Tv to string and return length of string.
01953   // If snprintf is available use it, otherwise fall back to the unsafe sprintf
01954   // which, in general, can be dangerous and should be avoided.
01955 #ifdef _GLIBCPP_USE_C99
01956   template<typename _Tv>
01957     int
01958     __convert_from_v(char* __out, const int __size, const char* __fmt,
01959              _Tv __v, const __c_locale&, int __prec = -1)
01960     {
01961       int __ret;
01962       const char* __old = setlocale(LC_ALL, "C");
01963       if (__prec >= 0)
01964         __ret = snprintf(__out, __size, __fmt, __prec, __v);
01965       else
01966         __ret = snprintf(__out, __size, __fmt, __v);
01967       setlocale(LC_ALL, __old);
01968       return __ret;
01969     }
01970 #else
01971   template<typename _Tv>
01972     int
01973     __convert_from_v(char* __out, const int, const char* __fmt, _Tv __v,
01974              const __c_locale&, int __prec = -1)
01975     {
01976       int __ret;
01977       const char* __old = setlocale(LC_ALL, "C");
01978       if (__prec >= 0)
01979         __ret = sprintf(__out, __fmt, __prec, __v);
01980       else
01981         __ret = sprintf(__out, __fmt, __v);
01982       setlocale(LC_ALL, __old);
01983       return __ret;
01984     }
01985 #endif
01986 
01987   // Construct correctly padded string, as per 22.2.2.2.2
01988   // Assumes 
01989   // __newlen > __oldlen
01990   // __news is allocated for __newlen size
01991   // Used by both num_put and ostream inserters: if __num,
01992   // internal-adjusted objects are padded according to the rules below
01993   // concerning 0[xX] and +-, otherwise, exactly as right-adjusted
01994   // ones are.
01995   template<typename _CharT, typename _Traits>
01996     void
01997     __pad(ios_base& __io, _CharT __fill, _CharT* __news, const _CharT* __olds,
01998       const streamsize __newlen, const streamsize __oldlen, 
01999       const bool __num)
02000     {
02001       typedef _CharT    char_type;
02002       typedef _Traits   traits_type;
02003       typedef typename traits_type::int_type int_type;
02004       
02005       int_type __plen = static_cast<size_t>(__newlen - __oldlen); 
02006       char_type* __pads = static_cast<char_type*>(__builtin_alloca(sizeof(char_type) * __plen));
02007       traits_type::assign(__pads, __plen, __fill); 
02008 
02009       char_type* __beg;
02010       char_type* __end;
02011       size_t __mod = 0;
02012       size_t __beglen; //either __plen or __oldlen
02013       ios_base::fmtflags __adjust = __io.flags() & ios_base::adjustfield;
02014 
02015       if (__adjust == ios_base::left)
02016     {
02017       // Padding last.
02018       __beg = const_cast<char_type*>(__olds);
02019       __beglen = __oldlen;
02020       __end = __pads;
02021     }
02022       else if (__adjust == ios_base::internal && __num)
02023     {
02024       // Pad after the sign, if there is one.
02025       // Pad after 0[xX], if there is one.
02026       // Who came up with these rules, anyway? Jeeze.
02027           locale __loc = __io.getloc();
02028       const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 
02029       const char_type __minus = __ctype.widen('-');
02030       const char_type __plus = __ctype.widen('+');
02031       bool __testsign = __olds[0] == __minus || __olds[0] == __plus;
02032       bool __testhex = __ctype.widen('0') == __olds[0] 
02033                        && (__ctype.widen('x') == __olds[1] 
02034                    || __ctype.widen('X') == __olds[1]);
02035       if (__testhex)
02036         {
02037           __news[0] = __olds[0]; 
02038           __news[1] = __olds[1];
02039           __mod += 2;
02040           __news += 2;
02041           __beg = __pads;
02042           __beglen = __plen;
02043           __end = const_cast<char_type*>(__olds + __mod);
02044         }
02045       else if (__testsign)
02046         {
02047           __news[0] = __olds[0] == __plus ? __plus : __minus;
02048           ++__mod;
02049           ++__news;
02050           __beg = __pads;
02051           __beglen = __plen;
02052           __end = const_cast<char_type*>(__olds + __mod);
02053         }
02054       else
02055         {
02056           // Padding first.
02057           __beg = __pads;
02058           __beglen = __plen;
02059           __end = const_cast<char_type*>(__olds);
02060         }
02061     }
02062       else
02063     {
02064       // Padding first.
02065       __beg = __pads;
02066       __beglen = __plen;
02067       __end = const_cast<char_type*>(__olds);
02068     }
02069       traits_type::copy(__news, __beg, __beglen);
02070       traits_type::copy(__news + __beglen, __end, __newlen - __beglen - __mod);
02071     }
02072 
02073   // NB: Can't have default argument on non-member template, and
02074   // num_put doesn't have a _Traits template parameter, so this
02075   // forwarding template adds in the default template argument.
02076   template<typename _CharT>
02077     void
02078     __pad(ios_base& __io, _CharT __fill, _CharT* __news, const _CharT* __olds,
02079       const streamsize __newlen, const streamsize __oldlen, 
02080       const bool __num)
02081     { 
02082       return __pad<_CharT, char_traits<_CharT> >(__io, __fill, __news, __olds,
02083                          __newlen, __oldlen, __num); 
02084     }
02085 
02086   // Used by both numeric and monetary facets.
02087   // Check to make sure that the __grouping_tmp string constructed in
02088   // money_get or num_get matches the canonical grouping for a given
02089   // locale.
02090   // __grouping_tmp is parsed L to R
02091   // 1,222,444 == __grouping_tmp of "/1/3/3"
02092   // __grouping is parsed R to L
02093   // 1,222,444 == __grouping of "/3" == "/3/3/3"
02094   template<typename _CharT>
02095     bool
02096     __verify_grouping(const basic_string<_CharT>& __grouping, 
02097               basic_string<_CharT>& __grouping_tmp)
02098     {         
02099       int __i = 0;
02100       int __j = 0;
02101       const int __len = __grouping.size();
02102       const int __n = __grouping_tmp.size();
02103       bool __test = true;
02104       
02105       // Parsed number groupings have to match the
02106       // numpunct::grouping string exactly, starting at the
02107       // right-most point of the parsed sequence of elements ...
02108       while (__test && __i < __n - 1)
02109     for (__j = 0; __test && __j < __len && __i < __n - 1; ++__j,++__i)
02110       __test &= __grouping[__j] == __grouping_tmp[__n - __i - 1];
02111       // ... but the last parsed grouping can be <= numpunct
02112       // grouping.
02113       __j == __len ? __j = 0 : __j;
02114       __test &= __grouping[__j] >= __grouping_tmp[__n - __i - 1];
02115       return __test;
02116     }
02117 
02118   // Used by both numeric and monetary facets.
02119   // Inserts "group separator" characters into an array of characters.
02120   // It's recursive, one iteration per group.  It moves the characters
02121   // in the buffer this way: "xxxx12345" -> "12,345xxx".  Call this
02122   // only with __gbeg != __gend.
02123   template<typename _CharT>
02124     _CharT*
02125     __add_grouping(_CharT* __s, _CharT __sep,  
02126            const char* __gbeg, const char* __gend, 
02127            const _CharT* __first, const _CharT* __last)
02128     {
02129       if (__last - __first > *__gbeg)
02130         {
02131           __s = __add_grouping(__s,  __sep, 
02132                    (__gbeg + 1 == __gend ? __gbeg : __gbeg + 1),
02133                    __gend, __first, __last - *__gbeg);
02134           __first = __last - *__gbeg;
02135           *__s++ = __sep;
02136         }
02137       do
02138     *__s++ = *__first++;
02139       while (__first != __last);
02140       return __s;
02141     }
02142 
02143   // Inhibit implicit instantiations for required instantiations,
02144   // which are defined via explicit instantiations elsewhere.  
02145   // NB: This syntax is a GNU extension.
02146   extern template class moneypunct<char, false>;
02147   extern template class moneypunct<char, true>;
02148   extern template class moneypunct_byname<char, false>;
02149   extern template class moneypunct_byname<char, true>;
02150   extern template class money_get<char>;
02151   extern template class money_put<char>;
02152   extern template class moneypunct<wchar_t, false>;
02153   extern template class moneypunct<wchar_t, true>;
02154   extern template class moneypunct_byname<wchar_t, false>;
02155   extern template class moneypunct_byname<wchar_t, true>;
02156   extern template class money_get<wchar_t>;
02157   extern template class money_put<wchar_t>;
02158   extern template class numpunct<char>;
02159   extern template class numpunct_byname<char>;
02160   extern template class num_get<char>;
02161   extern template class num_put<char>; 
02162   extern template class numpunct<wchar_t>;
02163   extern template class numpunct_byname<wchar_t>;
02164   extern template class num_get<wchar_t>;
02165   extern template class num_put<wchar_t>;
02166   extern template class __timepunct<char>;
02167   extern template class time_put<char>;
02168   extern template class time_put_byname<char>;
02169   extern template class time_get<char>;
02170   extern template class time_get_byname<char>;
02171   extern template class __timepunct<wchar_t>;
02172   extern template class time_put<wchar_t>;
02173   extern template class time_put_byname<wchar_t>;
02174   extern template class time_get<wchar_t>;
02175   extern template class time_get_byname<wchar_t>;
02176   extern template class messages<char>;
02177   extern template class messages_byname<char>;
02178   extern template class messages<wchar_t>;
02179   extern template class messages_byname<wchar_t>;
02180   extern template class ctype_byname<char>;
02181   extern template class ctype_byname<wchar_t>;
02182   extern template class codecvt_byname<char, char, mbstate_t>;
02183   extern template class codecvt_byname<wchar_t, char, mbstate_t>;
02184   extern template class collate<char>;
02185   extern template class collate_byname<char>;
02186   extern template class collate<wchar_t>;
02187   extern template class collate_byname<wchar_t>;
02188 
02189   extern template
02190     const codecvt<char, char, mbstate_t>& 
02191     use_facet<codecvt<char, char, mbstate_t> >(const locale&);
02192 
02193   extern template
02194     const collate<char>& 
02195     use_facet<collate<char> >(const locale&);
02196 
02197   extern template
02198     const numpunct<char>& 
02199     use_facet<numpunct<char> >(const locale&);
02200 
02201   extern template 
02202     const num_put<char>& 
02203     use_facet<num_put<char> >(const locale&);
02204 
02205   extern template 
02206     const num_get<char>& 
02207     use_facet<num_get<char> >(const locale&);
02208 
02209   extern template
02210     const moneypunct<char, true>& 
02211     use_facet<moneypunct<char, true> >(const locale&);
02212 
02213   extern template
02214     const moneypunct<char, false>& 
02215     use_facet<moneypunct<char, false> >(const locale&);
02216 
02217   extern template 
02218     const money_put<char>& 
02219     use_facet<money_put<char> >(const locale&);
02220 
02221   extern template 
02222     const money_get<char>& 
02223     use_facet<money_get<char> >(const locale&);
02224 
02225   extern template
02226     const __timepunct<char>& 
02227     use_facet<__timepunct<char> >(const locale&);
02228 
02229   extern template 
02230     const time_put<char>& 
02231     use_facet<time_put<char> >(const locale&);
02232 
02233   extern template 
02234     const time_get<char>& 
02235     use_facet<time_get<char> >(const locale&);
02236 
02237   extern template 
02238     const messages<char>& 
02239     use_facet<messages<char> >(const locale&);
02240 
02241   extern template
02242     const codecvt<wchar_t, char, mbstate_t>& 
02243     use_facet<codecvt<wchar_t, char, mbstate_t> >(locale const&);
02244 
02245   extern template
02246     const collate<wchar_t>& 
02247     use_facet<collate<wchar_t> >(const locale&);
02248 
02249   extern template
02250     const numpunct<wchar_t>& 
02251     use_facet<numpunct<wchar_t> >(const locale&);
02252 
02253   extern template 
02254     const num_put<wchar_t>& 
02255     use_facet<num_put<wchar_t> >(const locale&);
02256 
02257   extern template 
02258     const num_get<wchar_t>& 
02259     use_facet<num_get<wchar_t> >(const locale&);
02260 
02261   extern template
02262     const moneypunct<wchar_t, true>& 
02263     use_facet<moneypunct<wchar_t, true> >(const locale&);
02264 
02265   extern template
02266     const moneypunct<wchar_t, false>& 
02267     use_facet<moneypunct<wchar_t, false> >(const locale&);
02268  
02269   extern template 
02270     const money_put<wchar_t>& 
02271     use_facet<money_put<wchar_t> >(const locale&);
02272 
02273   extern template 
02274     const money_get<wchar_t>& 
02275     use_facet<money_get<wchar_t> >(const locale&);
02276 
02277   extern template
02278     const __timepunct<wchar_t>& 
02279     use_facet<__timepunct<wchar_t> >(const locale&);
02280 
02281   extern template 
02282     const time_put<wchar_t>& 
02283     use_facet<time_put<wchar_t> >(const locale&);
02284 
02285   extern template 
02286     const time_get<wchar_t>& 
02287     use_facet<time_get<wchar_t> >(const locale&);
02288 
02289   extern template 
02290     const messages<wchar_t>& 
02291     use_facet<messages<wchar_t> >(const locale&);
02292 
02293 
02294   extern template 
02295     bool
02296     has_facet<ctype<char> >(const locale&);
02297 
02298   extern template 
02299     bool
02300     has_facet<codecvt<char, char, mbstate_t> >(const locale&);
02301 
02302   extern template 
02303     bool
02304     has_facet<collate<char> >(const locale&);
02305 
02306   extern template 
02307     bool
02308     has_facet<numpunct<char> >(const locale&);
02309 
02310   extern template 
02311     bool
02312     has_facet<num_put<char> >(const locale&);
02313 
02314   extern template 
02315     bool
02316     has_facet<num_get<char> >(const locale&);
02317 
02318   extern template 
02319     bool
02320     has_facet<moneypunct<char> >(const locale&);
02321 
02322   extern template 
02323     bool
02324     has_facet<money_put<char> >(const locale&);
02325 
02326   extern template 
02327     bool
02328     has_facet<money_get<char> >(const locale&);
02329 
02330   extern template 
02331     bool
02332     has_facet<__timepunct<char> >(const locale&);
02333 
02334   extern template 
02335     bool
02336     has_facet<time_put<char> >(const locale&);
02337 
02338   extern template 
02339     bool
02340     has_facet<time_get<char> >(const locale&);
02341 
02342   extern template 
02343     bool
02344     has_facet<messages<char> >(const locale&);
02345 
02346  extern template 
02347     bool
02348     has_facet<ctype<wchar_t> >(const locale&);
02349 
02350   extern template 
02351     bool
02352     has_facet<codecvt<wchar_t, char, mbstate_t> >(const locale&);
02353 
02354   extern template 
02355     bool
02356     has_facet<collate<wchar_t> >(const locale&);
02357 
02358   extern template 
02359     bool
02360     has_facet<numpunct<wchar_t> >(const locale&);
02361 
02362   extern template 
02363     bool
02364     has_facet<num_put<wchar_t> >(const locale&);
02365 
02366   extern template 
02367     bool
02368     has_facet<num_get<wchar_t> >(const locale&);
02369 
02370   extern template 
02371     bool
02372     has_facet<moneypunct<wchar_t> >(const locale&);
02373 
02374   extern template 
02375     bool
02376     has_facet<money_put<wchar_t> >(const locale&);
02377 
02378   extern template 
02379     bool
02380     has_facet<money_get<wchar_t> >(const locale&);
02381 
02382   extern template 
02383     bool
02384     has_facet<__timepunct<wchar_t> >(const locale&);
02385 
02386   extern template 
02387     bool
02388     has_facet<time_put<wchar_t> >(const locale&);
02389 
02390   extern template 
02391     bool
02392     has_facet<time_get<wchar_t> >(const locale&);
02393 
02394   extern template 
02395     bool
02396     has_facet<messages<wchar_t> >(const locale&);
02397 } // namespace std
02398 
02399 #endif
02400 
02401 

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