diff options
Diffstat (limited to 'libstdc++-v3/include/ext/pb_assoc/detail/rb_tree_map_/insert_fn_imps.hpp')
| -rw-r--r-- | libstdc++-v3/include/ext/pb_assoc/detail/rb_tree_map_/insert_fn_imps.hpp | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/libstdc++-v3/include/ext/pb_assoc/detail/rb_tree_map_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_assoc/detail/rb_tree_map_/insert_fn_imps.hpp new file mode 100644 index 00000000000..413707817bc --- /dev/null +++ b/libstdc++-v3/include/ext/pb_assoc/detail/rb_tree_map_/insert_fn_imps.hpp @@ -0,0 +1,176 @@ +// -*- C++ -*- + +// Copyright (C) 2005 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 2, 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. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING. If not, write to the Free +// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// USA. + +// As a special exception, you may use this file as part of a free software +// library without restriction. Specifically, if other files instantiate +// templates or use macros or inline functions from this file, or you compile +// this file and link it with other files to produce an executable, this +// file does not by itself cause the resulting executable to be covered by +// the GNU General Public License. This exception does not however +// invalidate any other reasons why the executable file might be covered by +// the GNU General Public License. + +// 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 insert_fn_imps.hpp + * Contains an implementation for rb_tree_. + */ + +PB_ASSOC_CLASS_T_DEC +inline std::pair<typename PB_ASSOC_CLASS_C_DEC::find_iterator, bool> +PB_ASSOC_CLASS_C_DEC:: +insert(const_reference r_value) +{ + PB_ASSOC_DBG_ONLY(PB_ASSOC_CLASS_C_DEC::assert_valid();) + + std::pair<find_iterator, bool> ins_pair = + PB_ASSOC_BASE_C_DEC::insert_leaf(r_value); + + if (ins_pair.second == true) + { + ins_pair.first.m_p_nd->m_red = true; + + PB_ASSOC_DBG_ONLY(PB_ASSOC_BASE_C_DEC::assert_valid(false, true);) + + insert_fixup(ins_pair.first.m_p_nd); + } + + PB_ASSOC_DBG_ONLY(PB_ASSOC_BASE_C_DEC::assert_valid(true, true);) + PB_ASSOC_DBG_ONLY(PB_ASSOC_CLASS_C_DEC::assert_valid()); + + return (ins_pair); +} + +#ifdef PB_ASSOC_DATA_TRUE_INDICATOR +PB_ASSOC_CLASS_T_DEC +inline typename PB_ASSOC_CLASS_C_DEC::data_reference +PB_ASSOC_CLASS_C_DEC:: +subscript_imp(const_key_reference r_key) +{ + PB_ASSOC_DBG_ONLY(PB_ASSOC_CLASS_C_DEC::assert_valid();) + + std::pair<find_iterator, bool> ins_pair = + PB_ASSOC_BASE_C_DEC::insert_leaf( + value_type(r_key, data_type())); + + if (ins_pair.second == true) + { + ins_pair.first.m_p_nd->m_red = true; + + PB_ASSOC_DBG_ONLY(PB_ASSOC_BASE_C_DEC::assert_valid()); + + insert_fixup(ins_pair.first.m_p_nd); + } + + PB_ASSOC_DBG_ONLY(PB_ASSOC_CLASS_C_DEC::assert_valid()); + PB_ASSOC_DBG_ONLY(PB_ASSOC_BASE_C_DEC::assert_iterators();) + + return (ins_pair.first.m_p_nd->m_value.second); +} +#endif // #ifdef PB_ASSOC_DATA_TRUE + +PB_ASSOC_CLASS_T_DEC +inline void +PB_ASSOC_CLASS_C_DEC:: +insert_fixup(node_pointer p_nd) +{ + PB_ASSOC_DBG_ASSERT(p_nd->m_red == true); + + while (p_nd != PB_ASSOC_BASE_C_DEC::m_p_head->m_p_parent&& + p_nd->m_p_parent->m_red) + { + if (p_nd->m_p_parent == p_nd->m_p_parent->m_p_parent->m_p_left) + { + node_pointer p_y = p_nd->m_p_parent->m_p_parent->m_p_right; + + if (p_y != NULL&& p_y->m_red) + { + p_nd->m_p_parent->m_red = false; + + p_y->m_red = false; + + p_nd->m_p_parent->m_p_parent->m_red = true; + + p_nd = p_nd->m_p_parent->m_p_parent; + } + else + { + if (p_nd == p_nd->m_p_parent->m_p_right) + { + p_nd = p_nd->m_p_parent; + + PB_ASSOC_BASE_C_DEC::rotate_left(p_nd); + } + + p_nd->m_p_parent->m_red = false; + + p_nd->m_p_parent->m_p_parent->m_red = true; + + PB_ASSOC_BASE_C_DEC::rotate_right( + p_nd->m_p_parent->m_p_parent); + } + } + else + { + node_pointer p_y = p_nd->m_p_parent->m_p_parent->m_p_left; + + if (p_y != NULL&& p_y->m_red) + { + p_nd->m_p_parent->m_red = false; + + p_y->m_red = false; + + p_nd->m_p_parent->m_p_parent->m_red = true; + + p_nd = p_nd->m_p_parent->m_p_parent; + } + else + { + if (p_nd == p_nd->m_p_parent->m_p_left) + { + p_nd = p_nd->m_p_parent; + + PB_ASSOC_BASE_C_DEC::rotate_right(p_nd); + } + + p_nd->m_p_parent->m_red = false; + + p_nd->m_p_parent->m_p_parent->m_red = true; + + PB_ASSOC_BASE_C_DEC::rotate_left( + p_nd->m_p_parent->m_p_parent); + } + } + } + + PB_ASSOC_BASE_C_DEC::update_to_top(p_nd, (Node_Updator* )this); + + PB_ASSOC_BASE_C_DEC::m_p_head->m_p_parent->m_red = false; +} + |