libstdc++-v3/config/os/gnu-linux/ctype_base.h

   1 // Locale support -*- C++ -*-
   2
   3 // Copyright (C) 1997, 1998, 1999, 2000, 2002, 2003
   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 2, 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 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20 // USA.
  21
  22 // As a special exception, you may use this file as part of a free software
  23 // library without restriction.  Specifically, if other files instantiate
  24 // templates or use macros or inline functions from this file, or you compile
  25 // this file and link it with other files to produce an executable, this
  26 // file does not by itself cause the resulting executable to be covered by
  27 // the GNU General Public License.  This exception does not however
  28 // invalidate any other reasons why the executable file might be covered by
  29 // the GNU General Public License.
  30
  31 //
  32 // ISO C++ 14882: 22.1  Locales
  33 //
  34
  35 // Information as gleaned from /usr/include/ctype.h
  36
  37   /// @brief  Base class for ctype.
  38   struct ctype_base
  39   {
  40     // Non-standard typedefs.
  41     typedef const int*          __to_type;
  42
  43     // NB: Offsets into ctype<char>::_M_table force a particular size
  44     // on the mask type. Because of this, we don't use an enum.
  45     typedef unsigned short      mask;
  46     static const mask upper     = _ISupper;
  47     static const mask lower     = _ISlower;
  48     static const mask alpha     = _ISalpha;
  49     static const mask digit     = _ISdigit;
  50     static const mask xdigit    = _ISxdigit;
  51     static const mask space     = _ISspace;
  52     static const mask print     = _ISprint;
  53     static const mask graph     = _ISalpha | _ISdigit | _ISpunct;
  54     static const mask cntrl     = _IScntrl;
  55     static const mask punct     = _ISpunct;
  56     static const mask alnum     = _ISalpha | _ISdigit;
  57   };