gp_hash_table_map_/constructor_destructor_fn_imps.hpp
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// -*- C++ -*-
// Copyright (C) 2005-2013 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 gp_hash_table_map_/constructor_destructor_fn_imps.hpp
* Contains implementations of gp_ht_map_'s constructors, destructor,
* and related functions.
*/
PB_DS_CLASS_T_DEC
typename PB_DS_CLASS_C_DEC::entry_allocator
PB_DS_CLASS_C_DEC::s_entry_allocator;
PB_DS_CLASS_T_DEC
template<typename It>
void
PB_DS_CLASS_C_DEC::
copy_from_range(It first_it, It last_it)
{
while (first_it != last_it)
insert(*(first_it++));
}
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
PB_DS_GP_HASH_NAME()
: ranged_probe_fn_base(resize_base::get_nearest_larger_size(1)),
m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
m_entries(s_entry_allocator.allocate(m_num_e))
{
initialize();
PB_DS_ASSERT_VALID((*this))
}
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
PB_DS_GP_HASH_NAME(const Hash_Fn& r_hash_fn)
: ranged_probe_fn_base(resize_base::get_nearest_larger_size(1), r_hash_fn),
m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
m_entries(s_entry_allocator.allocate(m_num_e))
{
initialize();
PB_DS_ASSERT_VALID((*this))
}
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
PB_DS_GP_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn)
: hash_eq_fn_base(r_eq_fn),
ranged_probe_fn_base(resize_base::get_nearest_larger_size(1), r_hash_fn),
m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
m_entries(s_entry_allocator.allocate(m_num_e))
{
initialize();
PB_DS_ASSERT_VALID((*this))
}
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
PB_DS_GP_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn,
const Comb_Probe_Fn& r_comb_hash_fn)
: hash_eq_fn_base(r_eq_fn),
ranged_probe_fn_base(resize_base::get_nearest_larger_size(1),
r_hash_fn, r_comb_hash_fn),
m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
m_entries(s_entry_allocator.allocate(m_num_e))
{
initialize();
PB_DS_ASSERT_VALID((*this))
}
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
PB_DS_GP_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn,
const Comb_Probe_Fn& comb_hash_fn, const Probe_Fn& prober)
: hash_eq_fn_base(r_eq_fn),
ranged_probe_fn_base(resize_base::get_nearest_larger_size(1),
r_hash_fn, comb_hash_fn, prober),
m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
m_entries(s_entry_allocator.allocate(m_num_e))
{
initialize();
PB_DS_ASSERT_VALID((*this))
}
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
PB_DS_GP_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn,
const Comb_Probe_Fn& comb_hash_fn, const Probe_Fn& prober,
const Resize_Policy& r_resize_policy)
: hash_eq_fn_base(r_eq_fn), resize_base(r_resize_policy),
ranged_probe_fn_base(resize_base::get_nearest_larger_size(1),
r_hash_fn, comb_hash_fn, prober),
m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
m_entries(s_entry_allocator.allocate(m_num_e))
{
initialize();
PB_DS_ASSERT_VALID((*this))
}
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
PB_DS_GP_HASH_NAME(const PB_DS_CLASS_C_DEC& other) :
#ifdef _GLIBCXX_DEBUG
debug_base(other),
#endif
hash_eq_fn_base(other),
resize_base(other),
ranged_probe_fn_base(other),
m_num_e(other.m_num_e),
m_num_used_e(other.m_num_used_e),
m_entries(s_entry_allocator.allocate(m_num_e))
{
for (size_type i = 0; i < m_num_e; ++i)
m_entries[i].m_stat = (entry_status)empty_entry_status;
__try
{
for (size_type i = 0; i < m_num_e; ++i)
{
m_entries[i].m_stat = other.m_entries[i].m_stat;
if (m_entries[i].m_stat == valid_entry_status)
new (m_entries + i) entry(other.m_entries[i]);
}
}
__catch(...)
{
deallocate_all();
__throw_exception_again;
}
PB_DS_ASSERT_VALID((*this))
}
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
~PB_DS_GP_HASH_NAME()
{ deallocate_all(); }
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
swap(PB_DS_CLASS_C_DEC& other)
{
PB_DS_ASSERT_VALID((*this))
PB_DS_ASSERT_VALID(other)
std::swap(m_num_e, other.m_num_e);
std::swap(m_num_used_e, other.m_num_used_e);
std::swap(m_entries, other.m_entries);
ranged_probe_fn_base::swap(other);
hash_eq_fn_base::swap(other);
resize_base::swap(other);
_GLIBCXX_DEBUG_ONLY(debug_base::swap(other));
PB_DS_ASSERT_VALID((*this))
PB_DS_ASSERT_VALID(other)
}
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
deallocate_all()
{
clear();
erase_all_valid_entries(m_entries, m_num_e);
s_entry_allocator.deallocate(m_entries, m_num_e);
}
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
erase_all_valid_entries(entry_array a_entries_resized, size_type len)
{
for (size_type pos = 0; pos < len; ++pos)
{
entry_pointer p_e = &a_entries_resized[pos];
if (p_e->m_stat == valid_entry_status)
p_e->m_value.~value_type();
}
}
PB_DS_CLASS_T_DEC
void
PB_DS_CLASS_C_DEC::
initialize()
{
Resize_Policy::notify_resized(m_num_e);
Resize_Policy::notify_cleared();
ranged_probe_fn_base::notify_resized(m_num_e);
for (size_type i = 0; i < m_num_e; ++i)
m_entries[i].m_stat = empty_entry_status;
}