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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [libstdc++-v3/] [include/] [ext/] [pb_ds/] [detail/] [ov_tree_map_/] [split_join_fn_imps.hpp] - Rev 424
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// -*- C++ -*- // Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the terms // of the GNU General Public License as published by the Free Software // Foundation; either version 3, or (at your option) any later // version. // This library is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. // Permission to use, copy, modify, sell, and distribute this software // is hereby granted without fee, provided that the above copyright // notice appears in all copies, and that both that copyright notice // and this permission notice appear in supporting documentation. None // of the above authors, nor IBM Haifa Research Laboratories, make any // representation about the suitability of this software for any // purpose. It is provided "as is" without express or implied // warranty. /** * @file split_join_fn_imps.hpp * Contains an implementation class for ov_tree_. */ PB_DS_CLASS_T_DEC void PB_DS_CLASS_C_DEC:: split(const_key_reference r_key, PB_DS_CLASS_C_DEC& other) { _GLIBCXX_DEBUG_ONLY(assert_valid();) _GLIBCXX_DEBUG_ONLY(other.assert_valid();) if (m_size == 0) { other.clear(); _GLIBCXX_DEBUG_ONLY(assert_valid();) _GLIBCXX_DEBUG_ONLY(other.assert_valid();) return; } if (Cmp_Fn::operator()(r_key, PB_DS_V2F(*begin()))) { value_swap(other); _GLIBCXX_DEBUG_ONLY(assert_valid();) _GLIBCXX_DEBUG_ONLY(other.assert_valid();) return; } if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(*(end() - 1)))) { _GLIBCXX_DEBUG_ONLY(assert_valid();) _GLIBCXX_DEBUG_ONLY(other.assert_valid();) return; } if (m_size == 1) { value_swap(other); _GLIBCXX_DEBUG_ONLY(assert_valid();) _GLIBCXX_DEBUG_ONLY(other.assert_valid();) return; } _GLIBCXX_DEBUG_ONLY(debug_base::join(other);) iterator it = upper_bound(r_key); PB_DS_CLASS_C_DEC new_other(other, other); new_other.copy_from_ordered_range(it, end()); PB_DS_CLASS_C_DEC new_this(*this, * this); new_this.copy_from_ordered_range(begin(), it); // No exceptions from this point. _GLIBCXX_DEBUG_ONLY(debug_base::split(r_key,(Cmp_Fn& )(*this), other);) other.update(other.node_begin(), (node_update* )(&other)); update(node_begin(), (node_update* )this); other.value_swap(new_other); value_swap(new_this); _GLIBCXX_DEBUG_ONLY(assert_valid();) _GLIBCXX_DEBUG_ONLY(other.assert_valid();) } PB_DS_CLASS_T_DEC void PB_DS_CLASS_C_DEC:: join(PB_DS_CLASS_C_DEC& other) { _GLIBCXX_DEBUG_ONLY(assert_valid();) _GLIBCXX_DEBUG_ONLY(other.assert_valid();) if (other.m_size == 0) return; if (m_size == 0) { value_swap(other); return; } const bool greater = Cmp_Fn::operator()(PB_DS_V2F(*(end() - 1)), PB_DS_V2F(*other.begin())); const bool lesser = Cmp_Fn::operator()(PB_DS_V2F(*(other.end() - 1)), PB_DS_V2F(*begin())); if (!greater && !lesser) __throw_join_error(); PB_DS_CLASS_C_DEC new_this(*this, *this); if (greater) new_this.copy_from_ordered_range(begin(), end(), other.begin(), other.end()); else new_this.copy_from_ordered_range(other.begin(), other.end(), begin(), end()); // No exceptions from this point. _GLIBCXX_DEBUG_ONLY(debug_base::join(other);) value_swap(new_this); other.clear(); _GLIBCXX_DEBUG_ONLY(assert_valid();) _GLIBCXX_DEBUG_ONLY(other.assert_valid();) }