libstdc++
trie_string_access_traits_imp.hpp
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00001 // -*- C++ -*-
00002 
00003 // Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
00004 //
00005 // This file is part of the GNU ISO C++ Library.  This library is free
00006 // software; you can redistribute it and/or modify it under the terms
00007 // of the GNU General Public License as published by the Free Software
00008 // Foundation; either version 3, or (at your option) any later
00009 // version.
00010 
00011 // This library is distributed in the hope that it will be useful, but
00012 // WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014 // General Public License for more details.
00015 
00016 // Under Section 7 of GPL version 3, you are granted additional
00017 // permissions described in the GCC Runtime Library Exception, version
00018 // 3.1, as published by the Free Software Foundation.
00019 
00020 // You should have received a copy of the GNU General Public License and
00021 // a copy of the GCC Runtime Library Exception along with this program;
00022 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
00023 // <http://www.gnu.org/licenses/>.
00024 
00025 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
00026 
00027 // Permission to use, copy, modify, sell, and distribute this software
00028 // is hereby granted without fee, provided that the above copyright
00029 // notice appears in all copies, and that both that copyright notice
00030 // and this permission notice appear in supporting documentation. None
00031 // of the above authors, nor IBM Haifa Research Laboratories, make any
00032 // representation about the suitability of this software for any
00033 // purpose. It is provided "as is" without express or implied
00034 // warranty.
00035 
00036 /**
00037  * @file trie_policy/trie_string_access_traits_imp.hpp
00038  * Contains a policy for extracting character positions from
00039  *    a string for a vector-based PATRICIA tree
00040  */
00041 
00042 PB_DS_CLASS_T_DEC
00043 detail::integral_constant<int, Reverse> PB_DS_CLASS_C_DEC::s_rev_ind;
00044 
00045 PB_DS_CLASS_T_DEC
00046 inline typename PB_DS_CLASS_C_DEC::size_type
00047 PB_DS_CLASS_C_DEC::
00048 e_pos(e_type e)
00049 {
00050   return (static_cast<size_type>(e - min_e_val));
00051 }
00052 
00053 PB_DS_CLASS_T_DEC
00054 inline typename PB_DS_CLASS_C_DEC::const_iterator
00055 PB_DS_CLASS_C_DEC::
00056 begin(key_const_reference r_key)
00057 {
00058   return (begin_imp(r_key, s_rev_ind));
00059 }
00060 
00061 PB_DS_CLASS_T_DEC
00062 inline typename PB_DS_CLASS_C_DEC::const_iterator
00063 PB_DS_CLASS_C_DEC::
00064 end(key_const_reference r_key)
00065 {
00066   return (end_imp(r_key, s_rev_ind));
00067 }
00068 
00069 PB_DS_CLASS_T_DEC
00070 inline typename PB_DS_CLASS_C_DEC::const_iterator
00071 PB_DS_CLASS_C_DEC::
00072 begin_imp(key_const_reference r_key, detail::false_type)
00073 {
00074   return (r_key.begin());
00075 }
00076 
00077 PB_DS_CLASS_T_DEC
00078 inline typename PB_DS_CLASS_C_DEC::const_iterator
00079 PB_DS_CLASS_C_DEC::
00080 begin_imp(key_const_reference r_key, detail::true_type)
00081 {
00082   return (r_key.rbegin());
00083 }
00084 
00085 PB_DS_CLASS_T_DEC
00086 inline typename PB_DS_CLASS_C_DEC::const_iterator
00087 PB_DS_CLASS_C_DEC::
00088 end_imp(key_const_reference r_key, detail::false_type)
00089 {
00090   return (r_key.end());
00091 }
00092 
00093 PB_DS_CLASS_T_DEC
00094 inline typename PB_DS_CLASS_C_DEC::const_iterator
00095 PB_DS_CLASS_C_DEC::
00096 end_imp(key_const_reference r_key, detail::true_type)
00097 {
00098   return (r_key.rend());
00099 }