X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fext%2Fpb_ds%2Fdetail%2Fresize_policy%2Fcc_hash_max_collision_check_resize_trigger_imp.hpp;fp=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fext%2Fpb_ds%2Fdetail%2Fresize_policy%2Fcc_hash_max_collision_check_resize_trigger_imp.hpp;h=94cd515e310817db2f78322d599247cdf0f14e54;hb=94df942c2c7bd3457276fe5b7367623cbb8c1302;hp=0000000000000000000000000000000000000000;hpb=4dd7d9155a920895ff7b1cb6b9c9c676aa62000a;p=cross.git
diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/resize_policy/cc_hash_max_collision_check_resize_trigger_imp.hpp b/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/resize_policy/cc_hash_max_collision_check_resize_trigger_imp.hpp
new file mode 100644
index 0000000..94cd515
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/c++/4.7/ext/pb_ds/detail/resize_policy/cc_hash_max_collision_check_resize_trigger_imp.hpp
@@ -0,0 +1,211 @@
+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006, 2007, 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
+// .
+
+// 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 cc_hash_max_collision_check_resize_trigger_imp.hpp
+ * Contains a resize trigger implementation.
+ */
+
+PB_DS_CLASS_T_DEC
+PB_DS_CLASS_C_DEC::
+cc_hash_max_collision_check_resize_trigger(float load) :
+ m_load(load),
+ m_size(0),
+ m_num_col(0),
+ m_max_col(0),
+ m_resize_needed(false)
+{ }
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+notify_find_search_start()
+{ }
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+notify_find_search_collision()
+{ }
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+notify_find_search_end()
+{ }
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+notify_insert_search_start()
+{ m_num_col = 0; }
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+notify_insert_search_collision()
+{ ++m_num_col; }
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+notify_insert_search_end()
+{ calc_resize_needed(); }
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+notify_erase_search_start()
+{ }
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+notify_erase_search_collision()
+{ }
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+notify_erase_search_end()
+{ }
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+notify_inserted(size_type)
+{ }
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+notify_erased(size_type)
+{ m_resize_needed = true; }
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+notify_cleared()
+{ m_resize_needed = false; }
+
+PB_DS_CLASS_T_DEC
+inline bool
+PB_DS_CLASS_C_DEC::
+is_resize_needed() const
+{ return m_resize_needed; }
+
+PB_DS_CLASS_T_DEC
+inline bool
+PB_DS_CLASS_C_DEC::
+is_grow_needed(size_type /*size*/, size_type /*num_used_e*/) const
+{ return m_num_col >= m_max_col; }
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+notify_resized(size_type new_size)
+{
+ m_size = new_size;
+
+#ifdef PB_DS_HT_MAP_RESIZE_TRACE_
+ std::cerr << "chmccrt::notify_resized "
+ << static_cast(new_size) << std::endl;
+#endif
+
+ calc_max_num_coll();
+ calc_resize_needed();
+ m_num_col = 0;
+}
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+calc_max_num_coll()
+{
+ // max_col <-- \sqrt{2 load \ln( 2 m \ln( m ) ) }
+ const double ln_arg = 2 * m_size * std::log(double(m_size));
+ m_max_col = size_type(std::ceil(std::sqrt(2 * m_load * std::log(ln_arg))));
+
+#ifdef PB_DS_HT_MAP_RESIZE_TRACE_
+ std::cerr << "chmccrt::calc_max_num_coll "
+ << static_cast(m_size) << " "
+ << static_cast(m_max_col) << std::endl;
+#endif
+}
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+notify_externally_resized(size_type new_size)
+{ notify_resized(new_size); }
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+swap(PB_DS_CLASS_C_DEC& other)
+{
+ std::swap(m_load, other.m_load);
+ std::swap(m_size, other.m_size);
+ std::swap(m_num_col, other.m_num_col);
+ std::swap(m_max_col, other.m_max_col);
+ std::swap(m_resize_needed, other.m_resize_needed);
+}
+
+PB_DS_CLASS_T_DEC
+inline float
+PB_DS_CLASS_C_DEC::
+get_load() const
+{
+ PB_DS_STATIC_ASSERT(access, external_load_access);
+ return m_load;
+}
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+calc_resize_needed()
+{ m_resize_needed = m_resize_needed || m_num_col >= m_max_col; }
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+set_load(float load)
+{
+ PB_DS_STATIC_ASSERT(access, external_load_access);
+ m_load = load;
+ calc_max_num_coll();
+ calc_resize_needed();
+}
+