libstdc++-v3/src/ctype.cc

   1 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
   2 // Free Software Foundation, Inc.
   3 //
   4 // This file is part of the GNU ISO C++ Library.  This library is free
   5 // software; you can redistribute it and/or modify it under the
   6 // terms of the GNU General Public License as published by the
   7 // Free Software Foundation; either version 2, or (at your option)
   8 // any later version.
   9
  10 // This library is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License along
  16 // with this library; see the file COPYING.  If not, write to the Free
  17 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  18 // USA.
  19
  20 // As a special exception, you may use this file as part of a free software
  21 // library without restriction.  Specifically, if other files instantiate
  22 // templates or use macros or inline functions from this file, or you compile
  23 // this file and link it with other files to produce an executable, this
  24 // file does not by itself cause the resulting executable to be covered by
  25 // the GNU General Public License.  This exception does not however
  26 // invalidate any other reasons why the executable file might be covered by
  27 // the GNU General Public License.
  28
  29 #include <locale>
  30
  31 namespace std
  32 {
  33   // XXX At some point, just rename this file to ctype_members_char.cc
  34   // and compile it as a separate file instead of including it here.
  35   // Platform-specific initialization code for ctype tables.
  36   #include <bits/ctype_noninline.h>
  37
  38   // Definitions for locale::id of standard facets that are specialized.
  39   locale::id ctype<char>::id;
  40
  41 #ifdef _GLIBCXX_USE_WCHAR_T
  42   locale::id ctype<wchar_t>::id;
  43 #endif
  44
  45   template<>
  46     const ctype<char>&
  47     use_facet<ctype<char> >(const locale& __loc)
  48     {
  49       size_t __i = ctype<char>::id._M_id();
  50       const locale::_Impl* __tmp = __loc._M_impl;
  51       return static_cast<const ctype<char>&>(*(__tmp->_M_facets[__i]));
  52     }
  53
  54 #ifdef _GLIBCXX_USE_WCHAR_T
  55   template<>
  56     const ctype<wchar_t>&
  57     use_facet<ctype<wchar_t> >(const locale& __loc)
  58     {
  59       size_t __i = ctype<wchar_t>::id._M_id();
  60       const locale::_Impl* __tmp = __loc._M_impl;
  61       return static_cast<const ctype<wchar_t>&>(*(__tmp->_M_facets[__i]));
  62     }
  63 #endif
  64
  65   // Definitions for static const data members of ctype_base.
  66   const ctype_base::mask ctype_base::space;
  67   const ctype_base::mask ctype_base::print;
  68   const ctype_base::mask ctype_base::cntrl;
  69   const ctype_base::mask ctype_base::upper;
  70   const ctype_base::mask ctype_base::lower;
  71   const ctype_base::mask ctype_base::alpha;
  72   const ctype_base::mask ctype_base::digit;
  73   const ctype_base::mask ctype_base::punct;
  74   const ctype_base::mask ctype_base::xdigit;
  75   const ctype_base::mask ctype_base::alnum;
  76   const ctype_base::mask ctype_base::graph;
  77
  78   const size_t ctype<char>::table_size;
  79
  80   ctype<char>::~ctype()
  81   {
  82     _S_destroy_c_locale(_M_c_locale_ctype);
  83     if (_M_del)
  84       delete[] this->table();
  85   }
  86
  87   // These are dummy placeholders as these virtual functions are never called.
  88   bool
  89   ctype<char>::do_is(mask, char_type) const
  90   { return false; }
  91
  92   const char*
  93   ctype<char>::do_is(const char_type* __c, const char_type*, mask*) const
  94   { return __c; }
  95
  96   const char*
  97   ctype<char>::do_scan_is(mask, const char_type* __c, const char_type*) const
  98   { return __c; }
  99
 100   const char*
 101   ctype<char>::do_scan_not(mask, const char_type* __c, const char_type*) const
 102   { return __c; }
 103
 104   char
 105   ctype<char>::do_widen(char __c) const
 106   { return __c; }
 107
 108   const char*
 109   ctype<char>::do_widen(const char* __lo, const char* __hi, char* __dest) const
 110   {
 111     memcpy(__dest, __lo, __hi - __lo);
 112     return __hi;
 113   }
 114
 115   char
 116   ctype<char>::do_narrow(char __c, char /*__dfault*/) const
 117   { return __c; }
 118
 119   const char*
 120   ctype<char>::do_narrow(const char* __lo, const char* __hi,
 121                          char /*__dfault*/, char* __dest) const
 122   {
 123     memcpy(__dest, __lo, __hi - __lo);
 124     return __hi;
 125   }
 126
 127 #ifdef _GLIBCXX_USE_WCHAR_T
 128   ctype<wchar_t>::ctype(size_t __refs)
 129   : __ctype_abstract_base<wchar_t>(__refs)
 130   { _M_c_locale_ctype = _S_c_locale; }
 131
 132   ctype<wchar_t>::ctype(__c_locale __cloc, size_t __refs)
 133   : __ctype_abstract_base<wchar_t>(__refs)
 134   { _M_c_locale_ctype = _S_clone_c_locale(__cloc); }
 135
 136   ctype<wchar_t>::~ctype()
 137   { _S_destroy_c_locale(_M_c_locale_ctype); }
 138
 139   template<>
 140     ctype_byname<wchar_t>::ctype_byname(const char* __s, size_t __refs)
 141     : ctype<wchar_t>(__refs)
 142     {
 143       _S_destroy_c_locale(_M_c_locale_ctype);
 144       _S_create_c_locale(_M_c_locale_ctype, __s);
 145     }
 146 #endif
 147 } // namespace std
 148