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 erase_no_store_hash_fn_imps.hpp 44 * Contains implementations of cc_ht_map_'s erase related functions, 45 * when the hash value is not stored. 46 */ 47 48PB_DS_CLASS_T_DEC 49inline bool 50PB_DS_CLASS_C_DEC:: 51erase(const_key_reference r_key) 52{ 53 _GLIBCXX_DEBUG_ONLY(assert_valid();) 54 return erase_in_pos_imp(r_key, ranged_hash_fn_base::operator()(r_key)); 55} 56 57PB_DS_CLASS_T_DEC 58inline bool 59PB_DS_CLASS_C_DEC:: 60erase_in_pos_imp(const_key_reference r_key, size_type pos) 61{ 62 _GLIBCXX_DEBUG_ONLY(assert_valid();) 63 entry_pointer p_e = m_entries[pos]; 64 resize_base::notify_erase_search_start(); 65 if (p_e == NULL) 66 { 67 resize_base::notify_erase_search_end(); 68 _GLIBCXX_DEBUG_ONLY(map_debug_base::check_key_does_not_exist(r_key);) 69 _GLIBCXX_DEBUG_ONLY(assert_valid();) 70 return false; 71 } 72 73 if (hash_eq_fn_base::operator()(PB_DS_V2F(p_e->m_value), r_key)) 74 { 75 resize_base::notify_erase_search_end(); 76 _GLIBCXX_DEBUG_ONLY(map_debug_base:: check_key_exists(r_key);) 77 erase_entry_pointer(m_entries[pos]); 78 do_resize_if_needed_no_throw(); 79 _GLIBCXX_DEBUG_ONLY(assert_valid();) 80 return true; 81 } 82 83 while (true) 84 { 85 entry_pointer p_next_e = p_e->m_p_next; 86 if (p_next_e == NULL) 87 { 88 resize_base::notify_erase_search_end(); 89 _GLIBCXX_DEBUG_ONLY(map_debug_base::check_key_does_not_exist(r_key);) 90 _GLIBCXX_DEBUG_ONLY(assert_valid();) 91 return false; 92 } 93 94 if (hash_eq_fn_base::operator()(PB_DS_V2F(p_next_e->m_value), r_key)) 95 { 96 resize_base::notify_erase_search_end(); 97 _GLIBCXX_DEBUG_ONLY(map_debug_base::check_key_exists(r_key);) 98 erase_entry_pointer(p_e->m_p_next); 99 do_resize_if_needed_no_throw(); 100 _GLIBCXX_DEBUG_ONLY(assert_valid();) 101 return true; 102 } 103 resize_base::notify_erase_search_collision(); 104 p_e = p_next_e; 105 } 106} 107 108