text: // Locale support -*- C++ -*-
  
  // Copyright (C) 1997-2014 Free Software Foundation, Inc.
  //
  // This file is part of the GNU ISO C++ Library.  This library is free
  // software; you can redistribute it and/or modify it under the
  // terms of the GNU General Public License as published by the
  // Free Software Foundation; either version 3, or (at your option)
  // any later version.
  
  // This library is distributed in the hope that it will be useful,
  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  // GNU General Public License for more details.
  
  // Under Section 7 of GPL version 3, you are granted additional
  // permissions described in the GCC Runtime Library Exception, version
  // 3.1, as published by the Free Software Foundation.
  
  // You should have received a copy of the GNU General Public License and
  // a copy of the GCC Runtime Library Exception along with this program;
  // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  // <http://www.gnu.org/licenses/>.
  
  //
  // ISO C++ 14882: 22.1  Locales
  //
  
  //  We don't use the C-locale masks defined in mingw/include/ctype.h
  //  because those masks do not conform to the requirements of 22.2.1.
  //  In particular, a separate 'print' bitmask does not exist (isprint(c)
  //  relies on a combination of flags) and the  '_ALPHA' mask is also a
  //  combination of simple bitmasks.  Thus, we define libstdc++-specific
  //  masks here, based on the generic masks, and the corresponding
  //  classic_table in ctype_noninline.h.
  
  namespace std _GLIBCXX_VISIBILITY(default)
  {
  _GLIBCXX_BEGIN_NAMESPACE_VERSION
  
    /// @brief  Base class for ctype.
    struct ctype_base
    {
      // Non-standard typedefs.
      typedef const int* 		__to_type;
  
      // NB: Offsets into ctype<char>::_M_table force a particular size
      // on the mask type. Because of this, we don't use an enum.
      typedef unsigned short 	mask;   
      static const mask upper	= 1 << 0;
      static const mask lower	= 1 << 1;
      static const mask alpha	= 1 << 2;
      static const mask digit	= 1 << 3;
      static const mask xdigit	= 1 << 4;
      static const mask space	= 1 << 5;
      static const mask print	= 1 << 6;
      static const mask graph	= (1 << 2) | (1 << 3) | (1 << 9);  // alnum|punct
      static const mask cntrl	= 1 << 8;
      static const mask punct 	= 1 << 9;
      static const mask alnum	= (1 << 2) | (1 << 3);  // alpha|digit
    };
  
  _GLIBCXX_END_NAMESPACE_VERSION
  } // namespace
  