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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/rotate_fn_imps.hpp | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/rotate_fn_imps.hpp')
-rw-r--r-- | gcc-4.9/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/rotate_fn_imps.hpp | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/gcc-4.9/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/rotate_fn_imps.hpp b/gcc-4.9/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/rotate_fn_imps.hpp new file mode 100644 index 0000000..355f484 --- /dev/null +++ b/gcc-4.9/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/rotate_fn_imps.hpp @@ -0,0 +1,155 @@ +// -*- C++ -*- + +// Copyright (C) 2005-2014 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 bin_search_tree_/rotate_fn_imps.hpp + * Contains imps for rotating nodes. + */ + +PB_DS_CLASS_T_DEC +inline void +PB_DS_CLASS_C_DEC:: +rotate_left(node_pointer p_x) +{ + node_pointer p_y = p_x->m_p_right; + + p_x->m_p_right = p_y->m_p_left; + + if (p_y->m_p_left != 0) + p_y->m_p_left->m_p_parent = p_x; + + p_y->m_p_parent = p_x->m_p_parent; + + if (p_x == m_p_head->m_p_parent) + m_p_head->m_p_parent = p_y; + else if (p_x == p_x->m_p_parent->m_p_left) + p_x->m_p_parent->m_p_left = p_y; + else + p_x->m_p_parent->m_p_right = p_y; + + p_y->m_p_left = p_x; + p_x->m_p_parent = p_y; + + PB_DS_ASSERT_NODE_CONSISTENT(p_x) + PB_DS_ASSERT_NODE_CONSISTENT(p_y) + + apply_update(p_x, (node_update* )this); + apply_update(p_x->m_p_parent, (node_update* )this); +} + +PB_DS_CLASS_T_DEC +inline void +PB_DS_CLASS_C_DEC:: +rotate_right(node_pointer p_x) +{ + node_pointer p_y = p_x->m_p_left; + + p_x->m_p_left = p_y->m_p_right; + + if (p_y->m_p_right != 0) + p_y->m_p_right->m_p_parent = p_x; + + p_y->m_p_parent = p_x->m_p_parent; + + if (p_x == m_p_head->m_p_parent) + m_p_head->m_p_parent = p_y; + else if (p_x == p_x->m_p_parent->m_p_right) + p_x->m_p_parent->m_p_right = p_y; + else + p_x->m_p_parent->m_p_left = p_y; + + p_y->m_p_right = p_x; + p_x->m_p_parent = p_y; + + PB_DS_ASSERT_NODE_CONSISTENT(p_x) + PB_DS_ASSERT_NODE_CONSISTENT(p_y) + + apply_update(p_x, (node_update* )this); + apply_update(p_x->m_p_parent, (node_update* )this); +} + +PB_DS_CLASS_T_DEC +inline void +PB_DS_CLASS_C_DEC:: +rotate_parent(node_pointer p_nd) +{ + node_pointer p_parent = p_nd->m_p_parent; + + if (p_nd == p_parent->m_p_left) + rotate_right(p_parent); + else + rotate_left(p_parent); + + _GLIBCXX_DEBUG_ASSERT(p_parent->m_p_parent = p_nd); + _GLIBCXX_DEBUG_ASSERT(p_nd->m_p_left == p_parent || + p_nd->m_p_right == p_parent); +} + +PB_DS_CLASS_T_DEC +inline void +PB_DS_CLASS_C_DEC:: +apply_update(node_pointer /*p_nd*/, null_node_update_pointer /*p_update*/) +{ } + +PB_DS_CLASS_T_DEC +template<typename Node_Update_> +inline void +PB_DS_CLASS_C_DEC:: +apply_update(node_pointer p_nd, Node_Update_* /*p_update*/) +{ + node_update::operator()(node_iterator(p_nd), + node_const_iterator(static_cast<node_pointer>(0))); +} + +PB_DS_CLASS_T_DEC +template<typename Node_Update_> +inline void +PB_DS_CLASS_C_DEC:: +update_to_top(node_pointer p_nd, Node_Update_* p_update) +{ + while (p_nd != m_p_head) + { + apply_update(p_nd, p_update); + + p_nd = p_nd->m_p_parent; + } +} + +PB_DS_CLASS_T_DEC +inline void +PB_DS_CLASS_C_DEC:: +update_to_top(node_pointer /*p_nd*/, null_node_update_pointer /*p_update*/) +{ } + |