X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=blobdiff_plain;f=libstdc%2B%2B-v3%2Finclude%2Fext%2Fpb_ds%2Fdetail%2Fbin_search_tree_%2Fsplit_join_fn_imps.hpp;fp=libstdc%2B%2B-v3%2Finclude%2Fext%2Fpb_ds%2Fdetail%2Fbin_search_tree_%2Fsplit_join_fn_imps.hpp;h=9d2bd6d742debae82f560149cbac6784587067ea;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=0000000000000000000000000000000000000000;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/split_join_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/split_join_fn_imps.hpp new file mode 100644 index 00000000..9d2bd6d7 --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/split_join_fn_imps.hpp @@ -0,0 +1,146 @@ +// -*- 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 +// . + +// 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 bin_search_tree_. + */ + +PB_DS_CLASS_T_DEC +bool +PB_DS_CLASS_C_DEC:: +join_prep(PB_DS_CLASS_C_DEC& other) +{ + _GLIBCXX_DEBUG_ONLY(assert_valid();) + _GLIBCXX_DEBUG_ONLY(other.assert_valid();) + if (other.m_size == 0) + return false; + + if (m_size == 0) + { + value_swap(other); + return false; + } + + const bool greater = Cmp_Fn::operator()(PB_DS_V2F(m_p_head->m_p_right->m_value), PB_DS_V2F(other.m_p_head->m_p_left->m_value)); + + const bool lesser = Cmp_Fn::operator()(PB_DS_V2F(other.m_p_head->m_p_right->m_value), PB_DS_V2F(m_p_head->m_p_left->m_value)); + + if (!greater && !lesser) + __throw_join_error(); + + if (lesser) + value_swap(other); + + m_size += other.m_size; + _GLIBCXX_DEBUG_ONLY(debug_base::join(other);) + return true; +} + +PB_DS_CLASS_T_DEC +void +PB_DS_CLASS_C_DEC:: +join_finish(PB_DS_CLASS_C_DEC& other) +{ + initialize_min_max(); + other.initialize(); +} + +PB_DS_CLASS_T_DEC +bool +PB_DS_CLASS_C_DEC:: +split_prep(const_key_reference r_key, PB_DS_CLASS_C_DEC& other) +{ + _GLIBCXX_DEBUG_ONLY(assert_valid();) + _GLIBCXX_DEBUG_ONLY(other.assert_valid();) + other.clear(); + + if (m_size == 0) + { + _GLIBCXX_DEBUG_ONLY(assert_valid();) + _GLIBCXX_DEBUG_ONLY(other.assert_valid();) + return false; + } + + if (Cmp_Fn::operator()(r_key, PB_DS_V2F(m_p_head->m_p_left->m_value))) + { + value_swap(other); + _GLIBCXX_DEBUG_ONLY(assert_valid();) + _GLIBCXX_DEBUG_ONLY(other.assert_valid();) + return false; + } + + if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(m_p_head->m_p_right->m_value))) + { + _GLIBCXX_DEBUG_ONLY(assert_valid();) + _GLIBCXX_DEBUG_ONLY(other.assert_valid();) + return false; + } + + if (m_size == 1) + { + value_swap(other); + _GLIBCXX_DEBUG_ONLY(assert_valid();) + _GLIBCXX_DEBUG_ONLY(other.assert_valid();) + return false; + } + + _GLIBCXX_DEBUG_ONLY(debug_base::split(r_key,(Cmp_Fn& )(*this), other);) + return true; +} + +PB_DS_CLASS_T_DEC +void +PB_DS_CLASS_C_DEC:: +split_finish(PB_DS_CLASS_C_DEC& other) +{ + other.initialize_min_max(); + other.m_size = std::distance(other.begin(), other.end()); + m_size -= other.m_size; + initialize_min_max(); + _GLIBCXX_DEBUG_ONLY(assert_valid();) + _GLIBCXX_DEBUG_ONLY(other.assert_valid();) +} + +PB_DS_CLASS_T_DEC +typename PB_DS_CLASS_C_DEC::size_type +PB_DS_CLASS_C_DEC:: +recursive_count(node_pointer p) const +{ + if (p == NULL) + return 0; + return 1 + recursive_count(p->m_p_left) + recursive_count(p->m_p_right); +} +