libstdc++-v3/config/locale/darwin/ctype_members.cc

   1 // std::ctype implementation details, GNU version -*- C++ -*-
   2
   3 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
   4 // Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // Under Section 7 of GPL version 3, you are granted additional
  18 // permissions described in the GCC Runtime Library Exception, version
  19 // 3.1, as published by the Free Software Foundation.
  20
  21 // You should have received a copy of the GNU General Public License and
  22 // a copy of the GCC Runtime Library Exception along with this program;
  23 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 // <http://www.gnu.org/licenses/>.
  25
  26 //
  27 // ISO C++ 14882: 22.2.1.1.2  ctype virtual functions.
  28 //
  29
  30 // Written by Benjamin Kosnik <bkoz@redhat.com>
  31
  32 #include <locale>
  33 #include <bits/c++locale_internal.h>
  34 #include <cstdlib>
  35 #include <cstring>
  36 #include <cstdio>
  37
  38 namespace std
  39 {
  40   // NB: The other ctype<char> specializations are in src/locale.cc and
  41   // various /config/os/* files.
  42
  43   ctype_byname<char>::ctype_byname(const char* __s, size_t __refs)
  44   : ctype<char>(0, false, __refs)
  45   {
  46     if (std::strcmp(__s, "C") != 0 && std::strcmp(__s, "POSIX") != 0)
  47       {
  48         this->_S_destroy_c_locale(this->_M_c_locale_ctype);
  49         this->_S_create_c_locale(this->_M_c_locale_ctype, __s);
  50       }
  51   }
  52
  53   ctype_byname<char>::~ctype_byname()
  54   { }
  55
  56 #ifdef _GLIBCXX_USE_WCHAR_T
  57   ctype<wchar_t>::__wmask_type
  58   ctype<wchar_t>::_M_convert_to_wmask(const mask __m) const throw()
  59   {
  60     // Darwin uses the same codes for 'char' as 'wchar_t', so this routine
  61     // never gets called.
  62     return __m;
  63   };
  64
  65   wchar_t
  66   ctype<wchar_t>::do_toupper(wchar_t __c) const
  67   { return towupper(__c); }
  68
  69   const wchar_t*
  70   ctype<wchar_t>::do_toupper(wchar_t* __lo, const wchar_t* __hi) const
  71   {
  72     while (__lo < __hi)
  73       {
  74         *__lo = towupper(*__lo);
  75         ++__lo;
  76       }
  77     return __hi;
  78   }
  79
  80   wchar_t
  81   ctype<wchar_t>::do_tolower(wchar_t __c) const
  82   { return towlower(__c); }
  83
  84   const wchar_t*
  85   ctype<wchar_t>::do_tolower(wchar_t* __lo, const wchar_t* __hi) const
  86   {
  87     while (__lo < __hi)
  88       {
  89         *__lo = towlower(*__lo);
  90         ++__lo;
  91       }
  92     return __hi;
  93   }
  94
  95   wchar_t
  96   ctype<wchar_t>::
  97   do_widen(char __c) const
  98   { return _M_widen[static_cast<unsigned char>(__c)]; }
  99
 100   const char*
 101   ctype<wchar_t>::
 102   do_widen(const char* __lo, const char* __hi, wchar_t* __dest) const
 103   {
 104     while (__lo < __hi)
 105       {
 106         *__dest = _M_widen[static_cast<unsigned char>(*__lo)];
 107         ++__lo;
 108         ++__dest;
 109       }
 110     return __hi;
 111   }
 112
 113   char
 114   ctype<wchar_t>::
 115   do_narrow(wchar_t __wc, char __dfault) const
 116   {
 117     if (__wc >= 0 && __wc < 128 && _M_narrow_ok)
 118       return _M_narrow[__wc];
 119     const int __c = wctob(__wc);
 120     return (__c == EOF ? __dfault : static_cast<char>(__c));
 121   }
 122
 123   const wchar_t*
 124   ctype<wchar_t>::
 125   do_narrow(const wchar_t* __lo, const wchar_t* __hi, char __dfault,
 126             char* __dest) const
 127   {
 128     if (_M_narrow_ok)
 129       while (__lo < __hi)
 130         {
 131           if (*__lo >= 0 && *__lo < 128)
 132             *__dest = _M_narrow[*__lo];
 133           else
 134             {
 135               const int __c = wctob(*__lo);
 136               *__dest = (__c == EOF ? __dfault : static_cast<char>(__c));
 137             }
 138           ++__lo;
 139           ++__dest;
 140         }
 141     else
 142       while (__lo < __hi)
 143         {
 144           const int __c = wctob(*__lo);
 145           *__dest = (__c == EOF ? __dfault : static_cast<char>(__c));
 146           ++__lo;
 147           ++__dest;
 148         }
 149     return __hi;
 150   }
 151
 152   void
 153   ctype<wchar_t>::_M_initialize_ctype() throw()
 154   {
 155     wint_t __i;
 156     for (__i = 0; __i < 128; ++__i)
 157       {
 158         const int __c = wctob(__i);
 159         if (__c == EOF)
 160           break;
 161         else
 162           _M_narrow[__i] = static_cast<char>(__c);
 163       }
 164     if (__i == 128)
 165       _M_narrow_ok = true;
 166     else
 167       _M_narrow_ok = false;
 168     for (size_t __i = 0;
 169          __i < sizeof(_M_widen) / sizeof(wint_t); ++__i)
 170       _M_widen[__i] = btowc(__i);
 171   }
 172 #endif //  _GLIBCXX_USE_WCHAR_T
 173 }