mingw/lib/gcc/mingw32/4.3.3/include/c++/mingw32/bits/ctype_base.h

   1 // Locale support -*- C++ -*-
   2
   3 // Copyright (C) 1997, 1998, 1999, 2007 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: 22.1  Locales
  32 //
  33
  34 //  We don't use the C-locale masks defined in mingw/include/ctype.h
  35 //  because those masks do not conform to the requirements of 22.2.1.
  36 //  In particular, a separate 'print' bitmask does not exist (isprint(c)
  37 //  relies on a combination of flags) and the  '_ALPHA' mask is also a
  38 //  combination of simple bitmasks.  Thus, we define libstdc++-specific
  39 //  masks here, based on the generic masks, and the corresponding
  40 //  classic_table in ctype_noninline.h.
  41
  42 _GLIBCXX_BEGIN_NAMESPACE(std)
  43
  44   /// @brief  Base class for ctype.
  45   struct ctype_base
  46   {
  47     // Non-standard typedefs.
  48     typedef const int*          __to_type;
  49
  50     // NB: Offsets into ctype<char>::_M_table force a particular size
  51     // on the mask type. Because of this, we don't use an enum.
  52     typedef unsigned short      mask;
  53     static const mask upper     = 1 << 0;
  54     static const mask lower     = 1 << 1;
  55     static const mask alpha     = 1 << 2;
  56     static const mask digit     = 1 << 3;
  57     static const mask xdigit    = 1 << 4;
  58     static const mask space     = 1 << 5;
  59     static const mask print     = 1 << 6;
  60     static const mask graph     = (1 << 2) | (1 << 3) | (1 << 9);  // alnum|punct
  61     static const mask cntrl     = 1 << 8;
  62     static const mask punct     = 1 << 9;
  63     static const mask alnum     = (1 << 2) | (1 << 3);  // alpha|digit
  64   };
  65
  66 _GLIBCXX_END_NAMESPACE