old-autovect-branch/libstdc++-v3/include/ext/pb_assoc/detail/lu_policy/mtf_lu_policy_imp.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005 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 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  31
  32 // Permission to use, copy, modify, sell, and distribute this software
  33 // is hereby granted without fee, provided that the above copyright
  34 // notice appears in all copies, and that both that copyright notice and
  35 // this permission notice appear in supporting documentation. None of
  36 // the above authors, nor IBM Haifa Research Laboratories, make any
  37 // representation about the suitability of this software for any
  38 // purpose. It is provided "as is" without express or implied warranty.
  39
  40 /**
  41  * @file mtf_lu_policy.hpp
  42  * Contains a move-to-front policy implementation.
  43  */
  44
  45 PB_ASSOC_CLASS_T_DEC
  46 void
  47 PB_ASSOC_CLASS_C_DEC::
  48 swap(PB_ASSOC_CLASS_C_DEC& /*r_other*/)
  49 { }
  50
  51 PB_ASSOC_CLASS_T_DEC
  52 typename PB_ASSOC_CLASS_C_DEC::metadata_type
  53 PB_ASSOC_CLASS_C_DEC::
  54 operator()() const
  55 {
  56   return (move_to_front_lu_metadata());
  57 }
  58
  59 PB_ASSOC_CLASS_T_DEC
  60 inline bool
  61 PB_ASSOC_CLASS_C_DEC::
  62 operator()(metadata_reference /*r_data*/) const
  63 {
  64   return (true);
  65 }