libstdc++-v3/config/os/windiss/ctype_inline.h

   1 // Locale support -*- C++ -*-
   2
   3 // Copyright (C) 2002 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 /** @file ctype_inline.h
  31  *  This is an internal header file, included by other library headers.
  32  *  You should not attempt to use it directly.
  33  */
  34
  35 //
  36 // ISO C++ 14882: 22.1  Locales
  37 //
  38
  39 // ctype bits to be inlined go here. Non-inlinable (ie virtual do_*)
  40 // functions go in ctype.cc
  41
  42 // The following definitions are portable, but insanely slow. If one
  43 // cares at all about performance, then specialized ctype
  44 // functionality should be added for the native os in question: see
  45 // the config/os/bits/ctype_*.h files.
  46
  47 _GLIBCXX_BEGIN_NAMESPACE(std)
  48
  49   bool
  50   ctype<char>::
  51   is(mask __m, char __c) const
  52   {
  53     bool __ret;
  54     switch (__m)
  55       {
  56       case space:
  57         __ret = isspace(__c);
  58         break;
  59       case print:
  60         __ret = isprint(__c);
  61         break;
  62       case cntrl:
  63         __ret = iscntrl(__c);
  64         break;
  65       case upper:
  66         __ret = isupper(__c);
  67         break;
  68       case lower:
  69         __ret = islower(__c);
  70         break;
  71       case alpha:
  72         __ret = isalpha(__c);
  73         break;
  74       case digit:
  75         __ret = isdigit(__c);
  76         break;
  77       case punct:
  78         __ret = ispunct(__c);
  79         break;
  80       case xdigit:
  81         __ret = isxdigit(__c);
  82         break;
  83       case alnum:
  84         __ret = isalnum(__c);
  85         break;
  86       case graph:
  87         __ret = isgraph(__c);
  88         break;
  89       default:
  90         __ret = false;
  91         break;
  92       }
  93     return __ret;
  94   }
  95
  96   const char*
  97   ctype<char>::
  98   is(const char* __low, const char* __high, mask* __vec) const
  99   {
 100     const int __bitmasksize = 11; // Highest bitmask in ctype_base == 10
 101     for (;__low < __high; ++__vec, ++__low)
 102       {
 103         mask __m = 0;
 104         int __i = 0; // Lowest bitmask in ctype_base == 0
 105         for (;__i < __bitmasksize; ++__i)
 106           {
 107             mask __bit = static_cast<mask>(1 << __i);
 108             if (this->is(__bit, *__low))
 109               __m |= __bit;
 110           }
 111         *__vec = __m;
 112       }
 113     return __high;
 114   }
 115
 116   const char*
 117   ctype<char>::
 118   scan_is(mask __m, const char* __low, const char* __high) const
 119   {
 120     while (__low < __high && !this->is(__m, *__low))
 121       ++__low;
 122     return __low;
 123   }
 124
 125   const char*
 126   ctype<char>::
 127   scan_not(mask __m, const char* __low, const char* __high) const
 128   {
 129     while (__low < __high && this->is(__m, *__low) != 0)
 130       ++__low;
 131     return __low;
 132   }
 133
 134 _GLIBCXX_END_NAMESPACE