libstdc++-v3/include/ext/pb_ds/detail/list_update_map_/insert_fn_imps.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005-2023 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 terms
   7 // of the GNU General Public License as published by the Free Software
   8 // Foundation; either version 3, or (at your option) any later
   9 // version.
  10
  11 // This library is distributed in the hope that it will be useful, but
  12 // WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // General Public License for more details.
  15
  16 // Under Section 7 of GPL version 3, you are granted additional
  17 // permissions described in the GCC Runtime Library Exception, version
  18 // 3.1, as published by the Free Software Foundation.
  19
  20 // You should have received a copy of the GNU General Public License and
  21 // a copy of the GCC Runtime Library Exception along with this program;
  22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 // <http://www.gnu.org/licenses/>.
  24
  25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  26
  27 // Permission to use, copy, modify, sell, and distribute this software
  28 // is hereby granted without fee, provided that the above copyright
  29 // notice appears in all copies, and that both that copyright notice
  30 // and this permission notice appear in supporting documentation. None
  31 // of the above authors, nor IBM Haifa Research Laboratories, make any
  32 // representation about the suitability of this software for any
  33 // purpose. It is provided "as is" without express or implied
  34 // warranty.
  35
  36 /**
  37  * @file list_update_map_/insert_fn_imps.hpp
  38  * Contains implementations of lu_map_.
  39  */
  40
  41 #ifdef PB_DS_CLASS_C_DEC
  42
  43 PB_DS_CLASS_T_DEC
  44 inline std::pair<
  45   typename PB_DS_CLASS_C_DEC::point_iterator,
  46   bool>
  47 PB_DS_CLASS_C_DEC::
  48 insert(const_reference r_val)
  49 {
  50   PB_DS_ASSERT_VALID((*this))
  51   entry_pointer p_l = find_imp(PB_DS_V2F(r_val));
  52
  53   if (p_l != 0)
  54     {
  55       PB_DS_CHECK_KEY_EXISTS(PB_DS_V2F(r_val))
  56       return std::make_pair(point_iterator(&p_l->m_value), false);
  57     }
  58
  59   PB_DS_CHECK_KEY_DOES_NOT_EXIST(PB_DS_V2F(r_val))
  60
  61   p_l = allocate_new_entry(r_val, traits_base::m_no_throw_copies_indicator);
  62   p_l->m_p_next = m_p_l;
  63   m_p_l = p_l;
  64   PB_DS_ASSERT_VALID((*this))
  65   return std::make_pair(point_iterator(&p_l->m_value), true);
  66 }
  67
  68 PB_DS_CLASS_T_DEC
  69 inline typename PB_DS_CLASS_C_DEC::entry_pointer
  70 PB_DS_CLASS_C_DEC::
  71 allocate_new_entry(const_reference r_val, false_type)
  72 {
  73   entry_pointer p_l = s_entry_allocator.allocate(1);
  74   cond_dealtor_t cond(p_l);
  75   new (const_cast<void* >(static_cast<const void* >(&p_l->m_value)))
  76     value_type(r_val);
  77
  78   cond.set_no_action();
  79   _GLIBCXX_DEBUG_ONLY(debug_base::insert_new(PB_DS_V2F(r_val));)
  80   init_entry_metadata(p_l, s_metadata_type_indicator);
  81   return p_l;
  82 }
  83
  84 PB_DS_CLASS_T_DEC
  85 inline typename PB_DS_CLASS_C_DEC::entry_pointer
  86 PB_DS_CLASS_C_DEC::
  87 allocate_new_entry(const_reference    r_val, true_type)
  88 {
  89   entry_pointer p_l = s_entry_allocator.allocate(1);
  90   new (&p_l->m_value) value_type(r_val);
  91   _GLIBCXX_DEBUG_ONLY(debug_base::insert_new(PB_DS_V2F(r_val));)
  92   init_entry_metadata(p_l, s_metadata_type_indicator);
  93   return p_l;
  94 }
  95
  96 PB_DS_CLASS_T_DEC
  97 template<typename Metadata>
  98 inline void
  99 PB_DS_CLASS_C_DEC::
 100 init_entry_metadata(entry_pointer p_l, type_to_type<Metadata>)
 101 { new (&p_l->m_update_metadata) Metadata(s_update_policy()); }
 102
 103 PB_DS_CLASS_T_DEC
 104 inline void
 105 PB_DS_CLASS_C_DEC::
 106 init_entry_metadata(entry_pointer, type_to_type<null_type>)
 107 { }
 108
 109 #endif