list_update_map_/find_fn_imps.hpp
Go to the documentation of this file.
// -*- C++ -*-
// Copyright (C) 2005-2018 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 3, 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.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
// Permission to use, copy, modify, sell, and distribute this software
// is hereby granted without fee, provided that the above copyright
// notice appears in all copies, and that both that copyright notice
// and this permission notice appear in supporting documentation. None
// of the above authors, nor IBM Haifa Research Laboratories, make any
// representation about the suitability of this software for any
// purpose. It is provided "as is" without express or implied
// warranty.
/**
* @file list_update_map_/find_fn_imps.hpp
* Contains implementations of lu_map_.
*/
PB_DS_CLASS_T_DEC
inline typename PB_DS_CLASS_C_DEC::entry_pointer
PB_DS_CLASS_C_DEC::
find_imp(key_const_reference r_key) const
{
if (m_p_l == 0)
return 0;
if (s_eq_fn(r_key, PB_DS_V2F(m_p_l->m_value)))
{
apply_update(m_p_l, s_metadata_type_indicator);
PB_DS_CHECK_KEY_EXISTS(r_key)
return m_p_l;
}
entry_pointer p_l = m_p_l;
while (p_l->m_p_next != 0)
{
entry_pointer p_next = p_l->m_p_next;
if (s_eq_fn(r_key, PB_DS_V2F(p_next->m_value)))
{
if (apply_update(p_next, s_metadata_type_indicator))
{
p_l->m_p_next = p_next->m_p_next;
p_next->m_p_next = m_p_l;
m_p_l = p_next;
return m_p_l;
}
return p_next;
}
else
p_l = p_next;
}
PB_DS_CHECK_KEY_DOES_NOT_EXIST(r_key)
return 0;
}
PB_DS_CLASS_T_DEC
template<typename Metadata>
inline bool
PB_DS_CLASS_C_DEC::
apply_update(entry_pointer p_l, type_to_type<Metadata>)
{ return s_update_policy(p_l->m_update_metadata); }
PB_DS_CLASS_T_DEC
inline bool
PB_DS_CLASS_C_DEC::
apply_update(entry_pointer, type_to_type<null_type>)
{ return s_update_policy(s_null_type); }