diff options
Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp')
-rw-r--r-- | gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp b/gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp new file mode 100644 index 000000000..a000c744c --- /dev/null +++ b/gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/erase_fn_imps.hpp @@ -0,0 +1,120 @@ +// -*- 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 erase_fn_imps.hpp + * Contains an implementation class for bin_search_tree_. + */ + +PB_DS_CLASS_T_DEC +inline void +PB_DS_CLASS_C_DEC:: +actual_erase_node(node_pointer p_z) +{ + _GLIBCXX_DEBUG_ASSERT(m_size > 0); + --m_size; + + _GLIBCXX_DEBUG_ONLY(erase_existing(PB_DS_V2F(p_z->m_value))); + + p_z->~node(); + + s_node_allocator.deallocate(p_z, 1); +} + +PB_DS_CLASS_T_DEC +inline void +PB_DS_CLASS_C_DEC:: +update_min_max_for_erased_node(node_pointer p_z) +{ + if (m_size == 1) + { + m_p_head->m_p_left = m_p_head->m_p_right = m_p_head; + + return; + } + + if (m_p_head->m_p_left == p_z) + { + iterator it(p_z); + + ++it; + + m_p_head->m_p_left = it.m_p_nd; + } + else if (m_p_head->m_p_right == p_z) + { + iterator it(p_z); + + --it; + + m_p_head->m_p_right = it.m_p_nd; + } +} + +PB_DS_CLASS_T_DEC +void +PB_DS_CLASS_C_DEC:: +clear() +{ + _GLIBCXX_DEBUG_ONLY(structure_only_assert_valid();) + + clear_imp(m_p_head->m_p_parent); + + m_size = 0; + + initialize(); + + _GLIBCXX_DEBUG_ONLY(debug_base::clear();) + + _GLIBCXX_DEBUG_ONLY(structure_only_assert_valid();) + } + +PB_DS_CLASS_T_DEC +void +PB_DS_CLASS_C_DEC:: +clear_imp(node_pointer p_nd) +{ + if (p_nd == NULL) + return; + + clear_imp(p_nd->m_p_left); + + clear_imp(p_nd->m_p_right); + + p_nd->~node(); + + s_node_allocator.deallocate(p_nd, 1); +} + |