erase_fn_imps.hpp revision 256281
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_fn_imps.hpp 44 * Contains implementations of gp_ht_map_'s erase related functions. 45 */ 46 47PB_DS_CLASS_T_DEC 48inline void 49PB_DS_CLASS_C_DEC:: 50erase_entry(entry_pointer p_e) 51{ 52 _GLIBCXX_DEBUG_ASSERT(p_e->m_stat = valid_entry_status); 53 _GLIBCXX_DEBUG_ONLY(map_debug_base::erase_existing(PB_DS_V2F(p_e->m_value));) 54 p_e->m_value.~value_type(); 55 p_e->m_stat = erased_entry_status; 56 _GLIBCXX_DEBUG_ASSERT(m_num_used_e > 0); 57 resize_base::notify_erased(--m_num_used_e); 58} 59 60PB_DS_CLASS_T_DEC 61void 62PB_DS_CLASS_C_DEC:: 63clear() 64{ 65 for (size_type pos = 0; pos < m_num_e; ++pos) 66 { 67 entry_pointer p_e = &m_entries[pos]; 68 if (p_e->m_stat == valid_entry_status) 69 erase_entry(p_e); 70 } 71 do_resize_if_needed_no_throw(); 72 resize_base::notify_cleared(); 73} 74 75PB_DS_CLASS_T_DEC 76template<typename Pred> 77inline typename PB_DS_CLASS_C_DEC::size_type 78PB_DS_CLASS_C_DEC:: 79erase_if(Pred pred) 80{ 81 _GLIBCXX_DEBUG_ONLY(PB_DS_CLASS_C_DEC::assert_valid();) 82 size_type num_ersd = 0; 83 for (size_type pos = 0; pos < m_num_e; ++pos) 84 { 85 entry_pointer p_e = &m_entries[pos]; 86 if (p_e->m_stat == valid_entry_status) 87 if (pred(p_e->m_value)) 88 { 89 ++num_ersd; 90 erase_entry(p_e); 91 } 92 } 93 94 do_resize_if_needed_no_throw(); 95 _GLIBCXX_DEBUG_ONLY(PB_DS_CLASS_C_DEC::assert_valid();) 96 return num_ersd; 97} 98 99PB_DS_CLASS_T_DEC 100inline bool 101PB_DS_CLASS_C_DEC:: 102erase(const_key_reference r_key) 103{ return erase_imp(r_key, traits_base::m_store_extra_indicator); } 104 105#include <ext/pb_ds/detail/gp_hash_table_map_/erase_no_store_hash_fn_imps.hpp> 106#include <ext/pb_ds/detail/gp_hash_table_map_/erase_store_hash_fn_imps.hpp> 107