diff options
Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/find_fn_imps.hpp')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/find_fn_imps.hpp | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/find_fn_imps.hpp b/gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/find_fn_imps.hpp new file mode 100644 index 000000000..2552ead8b --- /dev/null +++ b/gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/find_fn_imps.hpp @@ -0,0 +1,269 @@ +// -*- 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 find_fn_imps.hpp + * Contains an implementation class for bin_search_tree_. + */ + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::point_iterator +PB_DS_CLASS_C_DEC:: +find(const_key_reference r_key) +{ + _GLIBCXX_DEBUG_ONLY(assert_valid();) + node_pointer p_nd = find_imp(r_key); + + if (p_nd == NULL || p_nd->m_type != pat_trie_leaf_node_type) + { + _GLIBCXX_DEBUG_ONLY(debug_base::check_key_does_not_exist(r_key);) + return end(); + } + + if (synth_e_access_traits::equal_keys(PB_DS_V2F(static_cast<leaf_pointer>(p_nd)->value()), r_key)) + { + _GLIBCXX_DEBUG_ONLY(debug_base::check_key_exists(r_key)); + return iterator(p_nd); + } + + _GLIBCXX_DEBUG_ONLY(debug_base::check_key_does_not_exist(r_key);) + return end(); +} + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::const_point_iterator +PB_DS_CLASS_C_DEC:: +find(const_key_reference r_key) const +{ + _GLIBCXX_DEBUG_ONLY(assert_valid();) + + const_node_pointer p_nd = const_cast<PB_DS_CLASS_C_DEC* >(this)->find_imp(r_key); + + if (p_nd == NULL || p_nd->m_type != pat_trie_leaf_node_type) + { + _GLIBCXX_DEBUG_ONLY(debug_base::check_key_does_not_exist(r_key);) + return end(); + } + + if (synth_e_access_traits::equal_keys(PB_DS_V2F(static_cast<const_leaf_pointer>(p_nd)->value()), r_key)) + { + _GLIBCXX_DEBUG_ONLY(debug_base::check_key_exists(r_key)); + return const_iterator(const_cast<node_pointer>(p_nd)); + } + + _GLIBCXX_DEBUG_ONLY(debug_base::check_key_does_not_exist(r_key);) + return end(); +} + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::node_pointer +PB_DS_CLASS_C_DEC:: +find_imp(const_key_reference r_key) +{ + if (empty()) + return (NULL); + + typename synth_e_access_traits::const_iterator b_it = + synth_e_access_traits::begin(r_key); + typename synth_e_access_traits::const_iterator e_it = + synth_e_access_traits::end(r_key); + + node_pointer p_nd = m_p_head->m_p_parent; + _GLIBCXX_DEBUG_ASSERT(p_nd != NULL); + + while (p_nd->m_type != pat_trie_leaf_node_type) + { + _GLIBCXX_DEBUG_ASSERT(p_nd->m_type == pat_trie_internal_node_type); + node_pointer p_next_nd = static_cast<internal_node_pointer>(p_nd)->get_child_node(b_it, e_it, this); + + if (p_next_nd == NULL) + return p_nd; + p_nd = p_next_nd; + } + return p_nd; +} + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::node_pointer +PB_DS_CLASS_C_DEC:: +lower_bound_imp(const_key_reference r_key) +{ + if (empty()) + return (m_p_head); + + node_pointer p_nd = m_p_head->m_p_parent; + _GLIBCXX_DEBUG_ASSERT(p_nd != NULL); + + typename PB_DS_CLASS_C_DEC::const_e_iterator b_it = + synth_e_access_traits::begin(r_key); + + typename PB_DS_CLASS_C_DEC::const_e_iterator e_it = + synth_e_access_traits::end(r_key); + + size_type checked_ind = 0; + while (true) + { + if (p_nd->m_type == pat_trie_leaf_node_type) + { + if (!synth_e_access_traits::cmp_keys(PB_DS_V2F(static_cast<const_leaf_pointer>(p_nd)->value()), r_key)) + return p_nd; + iterator it(p_nd); + ++it; + return it.m_p_nd; + } + + _GLIBCXX_DEBUG_ASSERT(p_nd->m_type == pat_trie_internal_node_type); + const size_type new_checked_ind = + static_cast<internal_node_pointer>(p_nd)->get_e_ind(); + + p_nd = + static_cast<internal_node_pointer>(p_nd)->get_lower_bound_child_node( b_it, e_it, checked_ind, this); + checked_ind = new_checked_ind; + } +} + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::point_iterator +PB_DS_CLASS_C_DEC:: +lower_bound(const_key_reference r_key) +{ return point_iterator(lower_bound_imp(r_key)); } + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::const_point_iterator +PB_DS_CLASS_C_DEC:: +lower_bound(const_key_reference r_key) const +{ + return const_point_iterator(const_cast<PB_DS_CLASS_C_DEC* >(this)->lower_bound_imp(r_key)); +} + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::point_iterator +PB_DS_CLASS_C_DEC:: +upper_bound(const_key_reference r_key) +{ + point_iterator l_bound_it = lower_bound(r_key); + + _GLIBCXX_DEBUG_ASSERT(l_bound_it == end() || + !synth_e_access_traits::cmp_keys(PB_DS_V2F(*l_bound_it), + r_key)); + + if (l_bound_it == end() || + synth_e_access_traits::cmp_keys(r_key, PB_DS_V2F(*l_bound_it))) + return l_bound_it; + + return ++l_bound_it; +} + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::const_point_iterator +PB_DS_CLASS_C_DEC:: +upper_bound(const_key_reference r_key) const +{ + const_point_iterator l_bound_it = lower_bound(r_key); + + _GLIBCXX_DEBUG_ASSERT(l_bound_it == end() || + !synth_e_access_traits::cmp_keys(PB_DS_V2F(*l_bound_it), + r_key)); + + if (l_bound_it == end() || + synth_e_access_traits::cmp_keys(r_key, PB_DS_V2F(*l_bound_it))) + return l_bound_it; + return ++l_bound_it; +} + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::const_e_iterator +PB_DS_CLASS_C_DEC:: +pref_begin(const_node_pointer p_nd) +{ + if (p_nd->m_type == pat_trie_leaf_node_type) + return (synth_e_access_traits::begin(PB_DS_V2F(static_cast<const_leaf_pointer>(p_nd)->value()))); + + _GLIBCXX_DEBUG_ASSERT(p_nd->m_type == pat_trie_internal_node_type); + return static_cast<const_internal_node_pointer>(p_nd)->pref_b_it(); +} + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::const_e_iterator +PB_DS_CLASS_C_DEC:: +pref_end(const_node_pointer p_nd) +{ + if (p_nd->m_type == pat_trie_leaf_node_type) + return (synth_e_access_traits::end(PB_DS_V2F(static_cast<const_leaf_pointer>(p_nd)->value()))); + + _GLIBCXX_DEBUG_ASSERT(p_nd->m_type == pat_trie_internal_node_type); + return static_cast<const_internal_node_pointer>(p_nd)->pref_e_it(); +} + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::const_leaf_pointer +PB_DS_CLASS_C_DEC:: +leftmost_descendant(const_node_pointer p_nd) +{ + if (p_nd->m_type == pat_trie_leaf_node_type) + return static_cast<const_leaf_pointer>(p_nd); + return static_cast<const_internal_node_pointer>(p_nd)->leftmost_descendant(); +} + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::leaf_pointer +PB_DS_CLASS_C_DEC:: +leftmost_descendant(node_pointer p_nd) +{ + if (p_nd->m_type == pat_trie_leaf_node_type) + return static_cast<leaf_pointer>(p_nd); + return static_cast<internal_node_pointer>(p_nd)->leftmost_descendant(); +} + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::const_leaf_pointer +PB_DS_CLASS_C_DEC:: +rightmost_descendant(const_node_pointer p_nd) +{ + if (p_nd->m_type == pat_trie_leaf_node_type) + return static_cast<const_leaf_pointer>(p_nd); + return static_cast<const_internal_node_pointer>(p_nd)->rightmost_descendant(); +} + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::leaf_pointer +PB_DS_CLASS_C_DEC:: +rightmost_descendant(node_pointer p_nd) +{ + if (p_nd->m_type == pat_trie_leaf_node_type) + return static_cast<leaf_pointer>(p_nd); + return static_cast<internal_node_pointer>(p_nd)->rightmost_descendant(); +} + |