libstdc++-v3/config/os/bsd/freebsd/bits/ctype_inline.h

   1 // Locale support -*- C++ -*-
   2
   3 // Copyright (C) 2000 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  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   bool
  38   ctype<char>::
  39   is(mask __m, char __c) const throw()
  40   {
  41     if (__m & (digit | xdigit))
  42       return __isctype(__c, __m);
  43     else
  44       return __istype(__c, __m);
  45   }
  46
  47   const char*
  48   ctype<char>::
  49   is(const char* __low, const char* __high, mask* __vec) const throw()
  50   {
  51     const int __bitmasksize = sizeof(mask) * 8;
  52     for (;__low < __high; ++__vec, ++__low)
  53       {
  54         mask __m = _M_table[*__low];
  55         int __i = 0; // Lowest bitmask value, 1 == 1 << 0 means 0
  56         while (__i < __bitmasksize && !(__m & static_cast<mask>(1 << __i)))
  57           ++__i;
  58         *__vec = static_cast<mask>(1 << __i);
  59       }
  60     return __high;
  61   }
  62
  63   const char*
  64   ctype<char>::
  65   scan_is(mask __m, const char* __low, const char* __high) const throw()
  66   {
  67     while (__low < __high && !this->is(__m, *__low))
  68       ++__low;
  69     return __low;
  70   }
  71
  72   const char*
  73   ctype<char>::
  74   scan_not(mask __m, const char* __low, const char* __high) const throw()
  75   {
  76     while (__low < __high && this->is(__m, *__low) != 0)
  77       ++__low;
  78     return __low;
  79   }
  80
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