1 // -*- C++ -*- 2 3 // Copyright (C) 2005-2013 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 cc_hash_table_map_/erase_fn_imps.hpp 38 * Contains implementations of cc_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_pointer(entry_pointer& r_p_e) 45 { 46 _GLIBCXX_DEBUG_ONLY(debug_base::erase_existing(PB_DS_V2F(r_p_e->m_value))); 47 48 entry_pointer p_e = r_p_e; 49 r_p_e = r_p_e->m_p_next; 50 rels_entry(p_e); 51 _GLIBCXX_DEBUG_ASSERT(m_num_used_e > 0); 52 resize_base::notify_erased(--m_num_used_e); 53 } 54 55 PB_DS_CLASS_T_DEC 56 template<typename Pred> 57 inline typename PB_DS_CLASS_C_DEC::size_type 58 PB_DS_CLASS_C_DEC:: 59 erase_if(Pred pred) 60 { 61 size_type num_ersd = 0; 62 for (size_type pos = 0; pos < m_num_e; ++pos) 63 { 64 while (m_entries[pos] != 0 && pred(m_entries[pos]->m_value)) 65 { 66 ++num_ersd; 67 entry_pointer p_next_e = m_entries[pos]->m_p_next; 68 erase_entry_pointer(m_entries[pos]); 69 m_entries[pos] = p_next_e; 70 } 71 72 entry_pointer p_e = m_entries[pos]; 73 while (p_e != 0 && p_e->m_p_next != 0) 74 { 75 if (pred(p_e->m_p_next->m_value)) 76 { 77 ++num_ersd; 78 erase_entry_pointer(p_e->m_p_next); 79 } 80 else 81 p_e = p_e->m_p_next; 82 } 83 } 84 85 do_resize_if_needed_no_throw(); 86 return num_ersd; 87 } 88 89 PB_DS_CLASS_T_DEC 90 void 91 PB_DS_CLASS_C_DEC:: 92 clear() 93 { 94 for (size_type pos = 0; pos < m_num_e; ++pos) 95 while (m_entries[pos] != 0) 96 erase_entry_pointer(m_entries[pos]); 97 do_resize_if_needed_no_throw(); 98 resize_base::notify_cleared(); 99 } 100 101 #include <ext/pb_ds/detail/cc_hash_table_map_/erase_no_store_hash_fn_imps.hpp> 102 #include <ext/pb_ds/detail/cc_hash_table_map_/erase_store_hash_fn_imps.hpp> 103 104
