diff options
author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
---|---|---|
committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/rotate_fn_imps.hpp | |
download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz |
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.
downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.
if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
Diffstat (limited to 'libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/rotate_fn_imps.hpp')
-rw-r--r-- | libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/rotate_fn_imps.hpp | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/rotate_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/rotate_fn_imps.hpp new file mode 100644 index 000000000..c7fcdb72d --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/rotate_fn_imps.hpp @@ -0,0 +1,150 @@ +// -*- C++ -*- + +// Copyright (C) 2005, 2006, 2009, 2010 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 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; + + _GLIBCXX_DEBUG_ONLY(assert_node_consistent(p_x);) + _GLIBCXX_DEBUG_ONLY(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; + + _GLIBCXX_DEBUG_ONLY(assert_node_consistent(p_x);) + _GLIBCXX_DEBUG_ONLY(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*/, __gnu_pbds::null_node_update* /*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) +{ + p_update->operator()(& PB_DS_V2F(p_nd->m_value),(p_nd->m_p_left == 0) ? + 0 : + & PB_DS_V2F(p_nd->m_p_left->m_value),(p_nd->m_p_right == 0) ? + 0 : + & PB_DS_V2F(p_nd->m_p_right->m_value)); +} + +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*/, __gnu_pbds::null_node_update* /*p_update*/) +{ } + |