1 // -*- C++ -*- 2 3 // Copyright (C) 2005-2014 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 3, 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 // Under Section 7 of GPL version 3, you are granted additional 17 // permissions described in the GCC Runtime Library Exception, version 18 // 3.1, as published by the Free Software Foundation. 19 20 // You should have received a copy of the GNU General Public License and 21 // a copy of the GCC Runtime Library Exception along with this program; 22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 // <http://www.gnu.org/licenses/>. 24 25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 26 27 // Permission to use, copy, modify, sell, and distribute this software 28 // is hereby granted without fee, provided that the above copyright 29 // notice appears in all copies, and that both that copyright notice 30 // and this permission notice appear in supporting documentation. None 31 // of the above authors, nor IBM Haifa Research Laboratories, make any 32 // representation about the suitability of this software for any 33 // purpose. It is provided "as is" without express or implied 34 // warranty. 35 36 /** 37 * @file gp_hash_table_map_/erase_fn_imps.hpp 38 * Contains implementations of gp_ht_map_'s erase related functions. 39 */ 40 41 PB_DS_CLASS_T_DEC 42 inline void 43 PB_DS_CLASS_C_DEC:: 44 erase_entry(entry_pointer p_e) 45 { 46 _GLIBCXX_DEBUG_ASSERT(p_e->m_stat = valid_entry_status); 47 _GLIBCXX_DEBUG_ONLY(debug_base::erase_existing(PB_DS_V2F(p_e->m_value));) 48 p_e->m_value.~value_type(); 49 p_e->m_stat = erased_entry_status; 50 _GLIBCXX_DEBUG_ASSERT(m_num_used_e > 0); 51 resize_base::notify_erased(--m_num_used_e); 52 } 53 54 PB_DS_CLASS_T_DEC 55 void 56 PB_DS_CLASS_C_DEC:: 57 clear() 58 { 59 for (size_type pos = 0; pos < m_num_e; ++pos) 60 { 61 entry_pointer p_e = &m_entries[pos]; 62 if (p_e->m_stat == valid_entry_status) 63 erase_entry(p_e); 64 } 65 do_resize_if_needed_no_throw(); 66 resize_base::notify_cleared(); 67 } 68 69 PB_DS_CLASS_T_DEC 70 template<typename Pred> 71 inline typename PB_DS_CLASS_C_DEC::size_type 72 PB_DS_CLASS_C_DEC:: 73 erase_if(Pred pred) 74 { 75 PB_DS_ASSERT_VALID((*this)) 76 size_type num_ersd = 0; 77 for (size_type pos = 0; pos < m_num_e; ++pos) 78 { 79 entry_pointer p_e = &m_entries[pos]; 80 if (p_e->m_stat == valid_entry_status) 81 if (pred(p_e->m_value)) 82 { 83 ++num_ersd; 84 erase_entry(p_e); 85 } 86 } 87 88 do_resize_if_needed_no_throw(); 89 PB_DS_ASSERT_VALID((*this)) 90 return num_ersd; 91 } 92 93 PB_DS_CLASS_T_DEC 94 inline bool 95 PB_DS_CLASS_C_DEC:: 96 erase(key_const_reference r_key) 97 { return erase_imp(r_key, traits_base::m_store_extra_indicator); } 98 99 #include <ext/pb_ds/detail/gp_hash_table_map_/erase_no_store_hash_fn_imps.hpp> 100 #include <ext/pb_ds/detail/gp_hash_table_map_/erase_store_hash_fn_imps.hpp> 101
