list_update_map_/erase_fn_imps.hpp
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// -*- C++ -*-
// Copyright (C) 2005-2019 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_/erase_fn_imps.hpp
* Contains implementations of lu_map_.
*/
PB_DS_CLASS_T_DEC
inline bool
PB_DS_CLASS_C_DEC::
erase(key_const_reference r_key)
{
PB_DS_ASSERT_VALID((*this))
if (m_p_l == 0)
return false;
if (s_eq_fn(r_key, PB_DS_V2F(m_p_l->m_value)))
{
entry_pointer p_next = m_p_l->m_p_next;
actual_erase_entry(m_p_l);
m_p_l = p_next;
return true;
}
entry_pointer p_l = m_p_l;
while (p_l->m_p_next != 0)
if (s_eq_fn(r_key, PB_DS_V2F(p_l->m_p_next->m_value)))
{
erase_next(p_l);
return true;
}
else
p_l = p_l->m_p_next;
return false;
}
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
clear()
{
deallocate_all();
}
PB_DS_CLASS_T_DEC
template<typename Pred>
inline typename PB_DS_CLASS_C_DEC::size_type
PB_DS_CLASS_C_DEC::
erase_if(Pred pred)
{
PB_DS_ASSERT_VALID((*this))
size_type num_ersd = 0;
while (m_p_l != 0 && pred(m_p_l->m_value))
{
entry_pointer p_next = m_p_l->m_p_next;
++num_ersd;
actual_erase_entry(m_p_l);
m_p_l = p_next;
}
if (m_p_l == 0)
return num_ersd;
entry_pointer p_l = m_p_l;
while (p_l->m_p_next != 0)
{
if (pred(p_l->m_p_next->m_value))
{
++num_ersd;
erase_next(p_l);
}
else
p_l = p_l->m_p_next;
}
PB_DS_ASSERT_VALID((*this))
return num_ersd;
}
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
erase_next(entry_pointer p_l)
{
_GLIBCXX_DEBUG_ASSERT(p_l != 0);
_GLIBCXX_DEBUG_ASSERT(p_l->m_p_next != 0);
entry_pointer p_next_l = p_l->m_p_next->m_p_next;
actual_erase_entry(p_l->m_p_next);
p_l->m_p_next = p_next_l;
}
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
actual_erase_entry(entry_pointer p_l)
{
_GLIBCXX_DEBUG_ONLY(debug_base::erase_existing(PB_DS_V2F(p_l->m_value));)
p_l->~entry();
s_entry_allocator.deallocate(p_l, 1);
}