old-autovect-branch/libstdc++-v3/config/locale/darwin/ctype_members.cc

   1 // std::ctype implementation details, GNU version -*- C++ -*-
   2
   3 // Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 //
  31 // ISO C++ 14882: 22.2.1.1.2  ctype virtual functions.
  32 //
  33
  34 // Written by Benjamin Kosnik <bkoz@redhat.com>
  35
  36 #include <locale>
  37 #include <bits/c++locale_internal.h>
  38
  39 namespace std
  40 {
  41   // NB: The other ctype<char> specializations are in src/locale.cc and
  42   // various /config/os/* files.
  43   template<>
  44     ctype_byname<char>::ctype_byname(const char* __s, size_t __refs)
  45     : ctype<char>(0, false, __refs)
  46     {
  47       if (std::strcmp(__s, "C") != 0 && std::strcmp(__s, "POSIX") != 0)
  48         {
  49           this->_S_destroy_c_locale(this->_M_c_locale_ctype);
  50           this->_S_create_c_locale(this->_M_c_locale_ctype, __s);
  51         }
  52     }
  53
  54 #ifdef _GLIBCXX_USE_WCHAR_T
  55   ctype<wchar_t>::__wmask_type
  56   ctype<wchar_t>::_M_convert_to_wmask(const mask __m) const
  57   {
  58     // Darwin uses the same codes for 'char' as 'wchar_t', so this routine
  59     // never gets called.
  60     return __m;
  61   };
  62
  63   wchar_t
  64   ctype<wchar_t>::do_toupper(wchar_t __c) const
  65   { return towupper(__c); }
  66
  67   const wchar_t*
  68   ctype<wchar_t>::do_toupper(wchar_t* __lo, const wchar_t* __hi) const
  69   {
  70     while (__lo < __hi)
  71       {
  72         *__lo = towupper(*__lo);
  73         ++__lo;
  74       }
  75     return __hi;
  76   }
  77
  78   wchar_t
  79   ctype<wchar_t>::do_tolower(wchar_t __c) const
  80   { return towlower(__c); }
  81
  82   const wchar_t*
  83   ctype<wchar_t>::do_tolower(wchar_t* __lo, const wchar_t* __hi) const
  84   {
  85     while (__lo < __hi)
  86       {
  87         *__lo = towlower(*__lo);
  88         ++__lo;
  89       }
  90     return __hi;
  91   }
  92
  93   wchar_t
  94   ctype<wchar_t>::
  95   do_widen(char __c) const
  96   { return _M_widen[static_cast<unsigned char>(__c)]; }
  97
  98   const char*
  99   ctype<wchar_t>::
 100   do_widen(const char* __lo, const char* __hi, wchar_t* __dest) const
 101   {
 102     while (__lo < __hi)
 103       {
 104         *__dest = _M_widen[static_cast<unsigned char>(*__lo)];
 105         ++__lo;
 106         ++__dest;
 107       }
 108     return __hi;
 109   }
 110
 111   char
 112   ctype<wchar_t>::
 113   do_narrow(wchar_t __wc, char __dfault) const
 114   {
 115     if (__wc >= 0 && __wc < 128 && _M_narrow_ok)
 116       return _M_narrow[__wc];
 117     const int __c = wctob(__wc);
 118     return (__c == EOF ? __dfault : static_cast<char>(__c));
 119   }
 120
 121   const wchar_t*
 122   ctype<wchar_t>::
 123   do_narrow(const wchar_t* __lo, const wchar_t* __hi, char __dfault,
 124             char* __dest) const
 125   {
 126     if (_M_narrow_ok)
 127       while (__lo < __hi)
 128         {
 129           if (*__lo >= 0 && *__lo < 128)
 130             *__dest = _M_narrow[*__lo];
 131           else
 132             {
 133               const int __c = wctob(*__lo);
 134               *__dest = (__c == EOF ? __dfault : static_cast<char>(__c));
 135             }
 136           ++__lo;
 137           ++__dest;
 138         }
 139     else
 140       while (__lo < __hi)
 141         {
 142           const int __c = wctob(*__lo);
 143           *__dest = (__c == EOF ? __dfault : static_cast<char>(__c));
 144           ++__lo;
 145           ++__dest;
 146         }
 147     return __hi;
 148   }
 149
 150   void
 151   ctype<wchar_t>::_M_initialize_ctype()
 152   {
 153     wint_t __i;
 154     for (__i = 0; __i < 128; ++__i)
 155       {
 156         const int __c = wctob(__i);
 157         if (__c == EOF)
 158           break;
 159         else
 160           _M_narrow[__i] = static_cast<char>(__c);
 161       }
 162     if (__i == 128)
 163       _M_narrow_ok = true;
 164     else
 165       _M_narrow_ok = false;
 166     for (size_t __i = 0;
 167          __i < sizeof(_M_widen) / sizeof(wint_t); ++__i)
 168       _M_widen[__i] = btowc(__i);
 169   }
 170 #endif //  _GLIBCXX_USE_WCHAR_T
 171 }