libstdc++-v3/include/ext/pb_ds/detail/cc_hash_table_map_/entry_list_fn_imps.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006 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 2, 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 // You should have received a copy of the GNU General Public License
  17 // along with this library; see the file COPYING.  If not, write to
  18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
  19 // MA 02111-1307, USA.
  20
  21 // As a special exception, you may use this file as part of a free
  22 // software library without restriction.  Specifically, if other files
  23 // instantiate templates or use macros or inline functions from this
  24 // file, or you compile this file and link it with other files to
  25 // produce an executable, this file does not by itself cause the
  26 // resulting executable to be covered by the GNU General Public
  27 // License.  This exception does not however invalidate any other
  28 // reasons why the executable file might be covered by the GNU General
  29 // Public License.
  30
  31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  32
  33 // Permission to use, copy, modify, sell, and distribute this software
  34 // is hereby granted without fee, provided that the above copyright
  35 // notice appears in all copies, and that both that copyright notice
  36 // and this permission notice appear in supporting documentation. None
  37 // of the above authors, nor IBM Haifa Research Laboratories, make any
  38 // representation about the suitability of this software for any
  39 // purpose. It is provided "as is" without express or implied
  40 // warranty.
  41
  42 /**
  43  * @file entry_list_fn_imps.hpp
  44  * Contains implementations of cc_ht_map_'s entry-list related functions.
  45  */
  46
  47 PB_DS_CLASS_T_DEC
  48 void
  49 PB_DS_CLASS_C_DEC::
  50 deallocate_links_in_list(entry_pointer p_e)
  51 {
  52   while (p_e != NULL)
  53     {
  54       entry_pointer p_dealloc_e = p_e;
  55
  56       p_e = p_e->m_p_next;
  57
  58       s_entry_allocator.deallocate(p_dealloc_e, 1);
  59     }
  60 }
  61
  62 PB_DS_CLASS_T_DEC
  63 inline typename PB_DS_CLASS_C_DEC::entry_pointer
  64 PB_DS_CLASS_C_DEC::
  65 get_entry(const_reference r_val, no_throw_copies_true_type)
  66 {
  67   // Following line might throw an exception.
  68
  69   entry_pointer p_e = s_entry_allocator.allocate(1);
  70
  71   // Following lines* cannot* throw an exception.
  72
  73   new (&p_e->m_value) value_type(r_val);
  74
  75   return (p_e);
  76 }
  77
  78 PB_DS_CLASS_T_DEC
  79 inline typename PB_DS_CLASS_C_DEC::entry_pointer
  80 PB_DS_CLASS_C_DEC::
  81 get_entry(const_reference r_val, no_throw_copies_false_type)
  82 {
  83   // Following line might throw an exception.
  84
  85   entry_pointer p_e = s_entry_allocator.allocate(1);
  86
  87   cond_dealtor_t cond(p_e);
  88
  89   // Following lines might throw an exception.
  90
  91   new (&p_e->m_value) value_type(r_val);
  92
  93   cond.set_no_action();
  94
  95   return (p_e);
  96 }
  97
  98 PB_DS_CLASS_T_DEC
  99 inline void
 100 PB_DS_CLASS_C_DEC::
 101 rels_entry(entry_pointer p_e)
 102 {
 103   /* The following lines cannot throw exceptions
 104    *     (unless if key-data dtors do). */
 105
 106   p_e->m_value.~value_type();
 107
 108   s_entry_allocator.deallocate(p_e, 1);
 109 }
 110