gomp-20050608-branch/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 //
  31 // ISO C++ 14882: 22.1  Locales
  32 //
  33
  34 // ctype bits to be inlined go here. Non-inlinable (ie virtual do_*)
  35 // functions go in ctype.cc
  36
  37 // The following definitions are portable, but insanely slow. If one
  38 // cares at all about performance, then specialized ctype
  39 // functionality should be added for the native os in question: see
  40 // the config/os/bits/ctype_*.h files.
  41
  42   bool
  43   ctype<char>::
  44   is(mask __m, char __c) const
  45   {
  46     bool __ret;
  47     switch (__m)
  48       {
  49       case space:
  50         __ret = isspace(__c);
  51         break;
  52       case print:
  53         __ret = isprint(__c);
  54         break;
  55       case cntrl:
  56         __ret = iscntrl(__c);
  57         break;
  58       case upper:
  59         __ret = isupper(__c);
  60         break;
  61       case lower:
  62         __ret = islower(__c);
  63         break;
  64       case alpha:
  65         __ret = isalpha(__c);
  66         break;
  67       case digit:
  68         __ret = isdigit(__c);
  69         break;
  70       case punct:
  71         __ret = ispunct(__c);
  72         break;
  73       case xdigit:
  74         __ret = isxdigit(__c);
  75         break;
  76       case alnum:
  77         __ret = isalnum(__c);
  78         break;
  79       case graph:
  80         __ret = isgraph(__c);
  81         break;
  82       default:
  83         __ret = false;
  84         break;
  85       }
  86     return __ret;
  87   }
  88
  89   const char*
  90   ctype<char>::
  91   is(const char* __low, const char* __high, mask* __vec) const
  92   {
  93     const int __bitmasksize = 11; // Highest bitmask in ctype_base == 10
  94     for (;__low < __high; ++__vec, ++__low)
  95       {
  96         mask __m = 0;
  97         int __i = 0; // Lowest bitmask in ctype_base == 0
  98         for (;__i < __bitmasksize; ++__i)
  99           {
 100             mask __bit = static_cast<mask>(1 << __i);
 101             if (this->is(__bit, *__low))
 102               __m |= __bit;
 103           }
 104         *__vec = __m;
 105       }
 106     return __high;
 107   }
 108
 109   const char*
 110   ctype<char>::
 111   scan_is(mask __m, const char* __low, const char* __high) const
 112   {
 113     while (__low < __high && !this->is(__m, *__low))
 114       ++__low;
 115     return __low;
 116   }
 117
 118   const char*
 119   ctype<char>::
 120   scan_not(mask __m, const char* __low, const char* __high) const
 121   {
 122     while (__low < __high && this->is(__m, *__low) != 0)
 123       ++__low;
 124     return __low;
 125   }