1169691Skan// -*- C++ -*- 2169691Skan 3169691Skan// Copyright (C) 2005, 2006 Free Software Foundation, Inc. 4169691Skan// 5169691Skan// This file is part of the GNU ISO C++ Library. This library is free 6169691Skan// software; you can redistribute it and/or modify it under the terms 7169691Skan// of the GNU General Public License as published by the Free Software 8169691Skan// Foundation; either version 2, or (at your option) any later 9169691Skan// version. 10169691Skan 11169691Skan// This library is distributed in the hope that it will be useful, but 12169691Skan// WITHOUT ANY WARRANTY; without even the implied warranty of 13169691Skan// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14169691Skan// General Public License for more details. 15169691Skan 16169691Skan// You should have received a copy of the GNU General Public License 17169691Skan// along with this library; see the file COPYING. If not, write to 18169691Skan// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, 19169691Skan// MA 02111-1307, USA. 20169691Skan 21169691Skan// As a special exception, you may use this file as part of a free 22169691Skan// software library without restriction. Specifically, if other files 23169691Skan// instantiate templates or use macros or inline functions from this 24169691Skan// file, or you compile this file and link it with other files to 25169691Skan// produce an executable, this file does not by itself cause the 26169691Skan// resulting executable to be covered by the GNU General Public 27169691Skan// License. This exception does not however invalidate any other 28169691Skan// reasons why the executable file might be covered by the GNU General 29169691Skan// Public License. 30169691Skan 31169691Skan// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 32169691Skan 33169691Skan// Permission to use, copy, modify, sell, and distribute this software 34169691Skan// is hereby granted without fee, provided that the above copyright 35169691Skan// notice appears in all copies, and that both that copyright notice 36169691Skan// and this permission notice appear in supporting documentation. None 37169691Skan// of the above authors, nor IBM Haifa Research Laboratories, make any 38169691Skan// representation about the suitability of this software for any 39169691Skan// purpose. It is provided "as is" without express or implied 40169691Skan// warranty. 41169691Skan 42169691Skan/** 43169691Skan * @file resize_fn_imps.hpp 44169691Skan * Contains implementations of cc_ht_map_'s resize related functions. 45169691Skan */ 46169691Skan 47169691SkanPB_DS_CLASS_T_DEC 48169691Skaninline bool 49169691SkanPB_DS_CLASS_C_DEC:: 50169691Skando_resize_if_needed() 51169691Skan{ 52169691Skan if (!resize_base::is_resize_needed()) 53169691Skan return false; 54169691Skan resize_imp(resize_base::get_new_size(m_num_e, m_num_used_e)); 55169691Skan return true; 56169691Skan} 57169691Skan 58169691SkanPB_DS_CLASS_T_DEC 59169691Skanvoid 60169691SkanPB_DS_CLASS_C_DEC:: 61169691Skando_resize(size_type len) 62169691Skan{ resize_imp(resize_base::get_nearest_larger_size(len)); } 63169691Skan 64169691SkanPB_DS_CLASS_T_DEC 65169691Skaninline void 66169691SkanPB_DS_CLASS_C_DEC:: 67169691Skando_resize_if_needed_no_throw() 68169691Skan{ 69169691Skan if (!resize_base::is_resize_needed()) 70169691Skan return; 71169691Skan 72169691Skan try 73169691Skan { 74169691Skan resize_imp(resize_base::get_new_size(m_num_e, m_num_used_e)); 75169691Skan } 76169691Skan catch(...) 77169691Skan { } 78169691Skan 79169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 80169691Skan} 81169691Skan 82169691SkanPB_DS_CLASS_T_DEC 83169691Skanvoid 84169691SkanPB_DS_CLASS_C_DEC:: 85169691Skanresize_imp(size_type new_size) 86169691Skan{ 87169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 88169691Skan if (new_size == m_num_e) 89169691Skan return; 90169691Skan 91169691Skan const size_type old_size = m_num_e; 92169691Skan entry_pointer_array a_p_entries_resized; 93169691Skan 94169691Skan // Following line might throw an exception. 95169691Skan ranged_hash_fn_base::notify_resized(new_size); 96169691Skan 97169691Skan try 98169691Skan { 99169691Skan // Following line might throw an exception. 100169691Skan a_p_entries_resized = s_entry_pointer_allocator.allocate(new_size); 101169691Skan m_num_e = new_size; 102169691Skan } 103169691Skan catch(...) 104169691Skan { 105169691Skan ranged_hash_fn_base::notify_resized(old_size); 106169691Skan __throw_exception_again; 107169691Skan } 108169691Skan 109169691Skan // At this point no exceptions can be thrown. 110169691Skan resize_imp_no_exceptions(new_size, a_p_entries_resized, old_size); 111169691Skan Resize_Policy::notify_resized(new_size); 112169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 113169691Skan} 114169691Skan 115169691SkanPB_DS_CLASS_T_DEC 116169691Skanvoid 117169691SkanPB_DS_CLASS_C_DEC:: 118169691Skanresize_imp_no_exceptions(size_type new_size, entry_pointer_array a_p_entries_resized, size_type old_size) 119169691Skan{ 120169691Skan std::fill(a_p_entries_resized, a_p_entries_resized + m_num_e, 121169691Skan entry_pointer(NULL)); 122169691Skan 123169691Skan for (size_type pos = 0; pos < old_size; ++pos) 124169691Skan { 125169691Skan entry_pointer p_e = m_entries[pos]; 126169691Skan while (p_e != NULL) 127169691Skan p_e = resize_imp_no_exceptions_reassign_pointer(p_e, a_p_entries_resized, traits_base::m_store_extra_indicator); 128169691Skan } 129169691Skan 130169691Skan m_num_e = new_size; 131169691Skan _GLIBCXX_DEBUG_ONLY(assert_entry_pointer_array_valid(a_p_entries_resized);) 132169691Skan s_entry_pointer_allocator.deallocate(m_entries, old_size); 133169691Skan m_entries = a_p_entries_resized; 134169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 135169691Skan} 136169691Skan 137169691Skan#include <ext/pb_ds/detail/cc_hash_table_map_/resize_no_store_hash_fn_imps.hpp> 138169691Skan#include <ext/pb_ds/detail/cc_hash_table_map_/resize_store_hash_fn_imps.hpp> 139169691Skan 140