old-autovect-branch/libstdc++-v3/include/ext/pb_assoc/detail/cc_ht_map_/entry_list_fn_imps.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005 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
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  31
  32 // Permission to use, copy, modify, sell, and distribute this software
  33 // is hereby granted without fee, provided that the above copyright
  34 // notice appears in all copies, and that both that copyright notice and
  35 // this permission notice appear in supporting documentation. None of
  36 // the above authors, nor IBM Haifa Research Laboratories, make any
  37 // representation about the suitability of this software for any
  38 // purpose. It is provided "as is" without express or implied warranty.
  39
  40 /**
  41  * @file entry_list_fn_imps.hpp
  42  * Contains implementations of cc_ht_map_'s entry-list related functions.
  43  */
  44
  45 PB_ASSOC_CLASS_T_DEC
  46 void
  47 PB_ASSOC_CLASS_C_DEC::
  48 deallocate_links_in_list(entry_pointer p_e)
  49 {
  50   while (p_e != NULL)
  51     {
  52       entry_pointer p_dealloc_e = p_e;
  53
  54       p_e = p_e->m_p_next;
  55
  56       s_entry_allocator.deallocate(p_dealloc_e, 1);
  57     }
  58 }
  59
  60 PB_ASSOC_CLASS_T_DEC
  61 inline typename PB_ASSOC_CLASS_C_DEC::entry_pointer
  62 PB_ASSOC_CLASS_C_DEC::
  63 get_entry(const_mapped_reference r_val, int_to_type<true>)
  64 {
  65   // Following line might throw an exception.
  66
  67   entry_pointer p_e = s_entry_allocator.allocate(1);
  68
  69   // Following lines* cannot* throw an exception.
  70
  71   new (&p_e->m_value) mapped_value_type(r_val);
  72
  73   return (p_e);
  74 }
  75
  76 PB_ASSOC_CLASS_T_DEC
  77 inline typename PB_ASSOC_CLASS_C_DEC::entry_pointer
  78 PB_ASSOC_CLASS_C_DEC::
  79 get_entry(const_mapped_reference r_val, int_to_type<false>)
  80 {
  81   // Following line might throw an exception.
  82
  83   entry_pointer p_e = s_entry_allocator.allocate(1);
  84
  85   cond_dealtor_t cond(p_e);
  86
  87   // Following lines might throw an exception.
  88
  89   new (&p_e->m_value) mapped_value_type(r_val);
  90
  91   cond.set_no_action();
  92
  93   return (p_e);
  94 }
  95
  96 PB_ASSOC_CLASS_T_DEC
  97 inline void
  98 PB_ASSOC_CLASS_C_DEC::
  99 rels_entry(entry_pointer p_e)
 100 {
 101   /* The following lines cannot throw exceptions
 102    *    (unless if key-data dtors do). */
 103
 104   PB_ASSOC_V2F(p_e->m_value).~Key();
 105 #ifdef PB_ASSOC_DATA_TRUE_INDICATOR
 106   p_e->m_value.second.~data_type();
 107 #endif // #ifdef PB_ASSOC_DATA_TRUE_INDICATOR
 108
 109   s_entry_allocator.deallocate(p_e, 1);
 110 }
 111