* texinfo: Remove directory from GCC.

[thirdparty/gcc.git] / libstdc++-v3 / config / os / newlib / bits / ctype_inline.h

// Locale support -*- C++ -*-

// Copyright (C) 2000 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 2, 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.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// As a special exception, you may use this file as part of a free software
// library without restriction.  Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License.  This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.

//
// ISO C++ 14882: 22.1  Locales
//
  
// ctype bits to be inlined go here. Non-inlinable (ie virtual do_*)
// functions go in ctype.cc
  
  bool
  ctype<char>::
  is(mask __m, char __c) const
  { return (_M_table + 1)[(unsigned char)(__c)] & __m; }

  const char*
  ctype<char>::
  is(const char* __low, const char* __high, mask* __vec) const
  {
    const int __bitmasksize = sizeof(mask) * 8;
    for (;__low < __high; ++__vec, ++__low)
      {
	mask __m = _M_table[*__low];
	int __i = 0; // Lowest bitmask with newlib, 1 << 0 == 01
	while (__i < __bitmasksize && !(__m & static_cast<mask>(1 << __i)))
	  ++__i;
	*__vec = static_cast<mask>(1 << __i);
      }
    return __high;
  }

  const char*
  ctype<char>::
  scan_is(mask __m, const char* __low, const char* __high) const 
  {
    while (__low < __high && !((_M_table + 1)[(unsigned char)(*__low)] & __m))
      ++__low;
    return __low;
  }

  const char*
  ctype<char>::
  scan_not(mask __m, const char* __low, const char* __high) const
  {
    while (__low < __high 
	   && ((_M_table + 1)[(unsigned char)(*__low)] & __m) != 0)
      ++__low;
    return __low;
  }