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 split_join_fn_imps.hpp 44169691Skan * Contains an implementation class for ov_tree_. 45169691Skan */ 46169691Skan 47169691SkanPB_DS_CLASS_T_DEC 48169691Skanvoid 49169691SkanPB_DS_CLASS_C_DEC:: 50169691Skansplit(const_key_reference r_key, PB_DS_CLASS_C_DEC& other) 51169691Skan{ 52169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 53169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 54169691Skan 55169691Skan if (m_size == 0) 56169691Skan { 57169691Skan other.clear(); 58169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 59169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 60169691Skan return; 61169691Skan } 62169691Skan 63169691Skan if (Cmp_Fn::operator()(r_key, PB_DS_V2F(*begin()))) 64169691Skan { 65169691Skan value_swap(other); 66169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 67169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 68169691Skan return; 69169691Skan } 70169691Skan 71169691Skan if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(*(end() - 1)))) 72169691Skan { 73169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 74169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 75169691Skan return; 76169691Skan } 77169691Skan 78169691Skan if (m_size == 1) 79169691Skan { 80169691Skan value_swap(other); 81169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 82169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 83169691Skan return; 84169691Skan } 85169691Skan 86169691Skan _GLIBCXX_DEBUG_ONLY(map_debug_base::join(other);) 87169691Skan iterator it = upper_bound(r_key); 88169691Skan PB_DS_CLASS_C_DEC new_other(other, other); 89169691Skan new_other.copy_from_ordered_range(it, end()); 90169691Skan PB_DS_CLASS_C_DEC new_this(*this, * this); 91169691Skan new_this.copy_from_ordered_range(begin(), it); 92169691Skan 93169691Skan // No exceptions from this point. 94169691Skan _GLIBCXX_DEBUG_ONLY(map_debug_base::split(r_key,(Cmp_Fn& )(*this), other);) 95169691Skan other.update(other.node_begin(), (node_update* )(&other)); 96169691Skan update(node_begin(), (node_update* )this); 97169691Skan other.value_swap(new_other); 98169691Skan value_swap(new_this); 99169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 100169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 101169691Skan} 102169691Skan 103169691SkanPB_DS_CLASS_T_DEC 104169691Skanvoid 105169691SkanPB_DS_CLASS_C_DEC:: 106169691Skanjoin(PB_DS_CLASS_C_DEC& other) 107169691Skan{ 108169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 109169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 110169691Skan if (other.m_size == 0) 111169691Skan return; 112169691Skan 113169691Skan if (m_size == 0) 114169691Skan { 115169691Skan value_swap(other); 116169691Skan return; 117169691Skan } 118169691Skan 119169691Skan const bool greater = Cmp_Fn::operator()(PB_DS_V2F(*(end() - 1)), 120169691Skan PB_DS_V2F(*other.begin())); 121169691Skan 122169691Skan const bool lesser = Cmp_Fn::operator()(PB_DS_V2F(*(other.end() - 1)), 123169691Skan PB_DS_V2F(*begin())); 124169691Skan 125169691Skan if (!greater && !lesser) 126169691Skan __throw_join_error(); 127169691Skan 128169691Skan PB_DS_CLASS_C_DEC new_this(*this, *this); 129169691Skan 130169691Skan if (greater) 131169691Skan new_this.copy_from_ordered_range(begin(), end(), 132169691Skan other.begin(), other.end()); 133169691Skan else 134169691Skan new_this.copy_from_ordered_range(other.begin(), other.end(), 135169691Skan begin(), end()); 136169691Skan 137169691Skan // No exceptions from this point. 138169691Skan _GLIBCXX_DEBUG_ONLY(map_debug_base::join(other);) 139169691Skan value_swap(new_this); 140169691Skan other.clear(); 141169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 142169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 143169691Skan} 144