diff options
Diffstat (limited to 'i686-linux/include/c++/4.4.3/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp')
| -rw-r--r-- | i686-linux/include/c++/4.4.3/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp | 357 |
1 files changed, 357 insertions, 0 deletions
diff --git a/i686-linux/include/c++/4.4.3/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp b/i686-linux/include/c++/4.4.3/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp new file mode 100644 index 0000000..576cba2 --- /dev/null +++ b/i686-linux/include/c++/4.4.3/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp @@ -0,0 +1,357 @@ +// -*- 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 binary_heap_.hpp + * Contains an implementation class for a binary heap. + */ + +#ifndef PB_DS_BINARY_HEAP_HPP +#define PB_DS_BINARY_HEAP_HPP + +/* + * Based on CLRS. + */ + +#include <queue> +#include <algorithm> +#include <ext/pb_ds/detail/cond_dealtor.hpp> +#include <ext/pb_ds/detail/cond_dealtor.hpp> +#include <ext/pb_ds/detail/type_utils.hpp> +#include <ext/pb_ds/detail/binary_heap_/entry_cmp.hpp> +#include <ext/pb_ds/detail/binary_heap_/entry_pred.hpp> +#include <ext/pb_ds/detail/binary_heap_/resize_policy.hpp> +#include <ext/pb_ds/detail/binary_heap_/const_point_iterator.hpp> +#include <ext/pb_ds/detail/binary_heap_/const_iterator.hpp> +#ifdef PB_DS_BINARY_HEAP_TRACE_ +#include <iostream> +#endif +#include <ext/pb_ds/detail/type_utils.hpp> +#include <debug/debug.h> + +namespace __gnu_pbds +{ + namespace detail + { +#define PB_DS_CLASS_T_DEC \ + template<typename Value_Type, class Cmp_Fn, class Allocator> + +#define PB_DS_CLASS_C_DEC \ + binary_heap_<Value_Type, Cmp_Fn, Allocator> + +#define PB_DS_ENTRY_CMP_DEC \ + entry_cmp<Value_Type, Cmp_Fn, is_simple<Value_Type>::value, Allocator>::type + +#define PB_DS_RESIZE_POLICY_DEC \ + __gnu_pbds::detail::resize_policy<typename Allocator::size_type> + + /** + * class description = "Base class for some types of h3ap$"> + **/ + template<typename Value_Type, class Cmp_Fn, class Allocator> + class binary_heap_ : public PB_DS_ENTRY_CMP_DEC, + public PB_DS_RESIZE_POLICY_DEC + { + + private: + enum + { + simple_value = is_simple<Value_Type>::value + }; + + typedef integral_constant<int, simple_value> no_throw_copies_t; + + typedef + typename Allocator::template rebind< + Value_Type>::other + value_allocator; + + typedef + typename __conditional_type< + simple_value, + Value_Type, + typename value_allocator::pointer>::__type + entry; + + typedef + typename Allocator::template rebind< + entry>::other + entry_allocator; + + typedef typename entry_allocator::pointer entry_pointer; + + typedef typename PB_DS_ENTRY_CMP_DEC entry_cmp; + + typedef PB_DS_RESIZE_POLICY_DEC resize_policy; + + typedef + cond_dealtor< + Value_Type, + Allocator> + cond_dealtor_t; + + public: + + typedef typename Allocator::size_type size_type; + + typedef typename Allocator::difference_type difference_type; + + typedef Value_Type value_type; + + typedef + typename Allocator::template rebind< + value_type>::other::pointer + pointer; + + typedef + typename Allocator::template rebind< + value_type>::other::const_pointer + const_pointer; + + typedef + typename Allocator::template rebind< + value_type>::other::reference + reference; + + typedef + typename Allocator::template rebind< + value_type>::other::const_reference + const_reference; + + typedef + binary_heap_const_point_iterator_< + value_type, + entry, + simple_value, + Allocator> + const_point_iterator; + + typedef const_point_iterator point_iterator; + + typedef + binary_heap_const_iterator_< + value_type, + entry, + simple_value, + Allocator> + const_iterator; + + typedef const_iterator iterator; + + typedef Cmp_Fn cmp_fn; + + typedef Allocator allocator_type; + + public: + + binary_heap_(); + + binary_heap_(const Cmp_Fn& r_cmp_fn); + + binary_heap_(const PB_DS_CLASS_C_DEC& other); + + void + swap(PB_DS_CLASS_C_DEC& other); + + ~binary_heap_(); + + inline bool + empty() const; + + inline size_type + size() const; + + inline size_type + max_size() const; + + Cmp_Fn& + get_cmp_fn(); + + const Cmp_Fn& + get_cmp_fn() const; + + inline point_iterator + push(const_reference r_val); + + void + modify(point_iterator it, const_reference r_new_val); + + inline const_reference + top() const; + + inline void + pop(); + + inline void + erase(point_iterator it); + + template<typename Pred> + typename PB_DS_CLASS_C_DEC::size_type + erase_if(Pred pred); + + inline static void + erase_at(entry_pointer a_entries, size_type size, false_type); + + inline static void + erase_at(entry_pointer a_entries, size_type size, true_type); + + inline iterator + begin(); + + inline const_iterator + begin() const; + + inline iterator + end(); + + inline const_iterator + end() const; + + void + clear(); + + template<typename Pred> + void + split(Pred pred, PB_DS_CLASS_C_DEC& other); + + void + join(PB_DS_CLASS_C_DEC& other); + +#ifdef PB_DS_BINARY_HEAP_TRACE_ + void + trace() const; +#endif + + protected: + + template<typename It> + void + copy_from_range(It first_it, It last_it); + + private: + + void + value_swap(PB_DS_CLASS_C_DEC& other); + + inline void + insert_value(const_reference r_val, false_type); + + inline void + insert_value(value_type val, true_type); + + inline void + insert_entry(entry e); + + inline void + resize_for_insert_if_needed(); + + inline void + swap_value_imp(entry_pointer p_e, value_type new_val, true_type); + + inline void + swap_value_imp(entry_pointer p_e, const_reference r_new_val, false_type); + + void + fix(entry_pointer p_e); + + inline const_reference + top_imp(true_type) const; + + inline const_reference + top_imp(false_type) const; + + inline static size_type + left_child(size_type i); + + inline static size_type + right_child(size_type i); + + inline static size_type + parent(size_type i); + + inline void + resize_for_erase_if_needed(); + + template<typename Pred> + size_type + partition(Pred pred); + +#ifdef _GLIBCXX_DEBUG + void + assert_valid() const; +#endif + +#ifdef PB_DS_BINARY_HEAP_TRACE_ + void + trace_entry(const entry& r_e, false_type) const; + + void + trace_entry(const entry& r_e, true_type) const; +#endif + + private: + static entry_allocator s_entry_allocator; + + static value_allocator s_value_allocator; + + static no_throw_copies_t s_no_throw_copies_ind; + + size_type m_size; + + size_type m_actual_size; + + entry_pointer m_a_entries; + }; + +#include <ext/pb_ds/detail/binary_heap_/insert_fn_imps.hpp> +#include <ext/pb_ds/detail/binary_heap_/constructors_destructor_fn_imps.hpp> +#include <ext/pb_ds/detail/binary_heap_/iterators_fn_imps.hpp> +#include <ext/pb_ds/detail/binary_heap_/debug_fn_imps.hpp> +#include <ext/pb_ds/detail/binary_heap_/trace_fn_imps.hpp> +#include <ext/pb_ds/detail/binary_heap_/erase_fn_imps.hpp> +#include <ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp> +#include <ext/pb_ds/detail/binary_heap_/find_fn_imps.hpp> +#include <ext/pb_ds/detail/binary_heap_/split_join_fn_imps.hpp> +#include <ext/pb_ds/detail/binary_heap_/policy_access_fn_imps.hpp> + +#undef PB_DS_CLASS_C_DEC +#undef PB_DS_CLASS_T_DEC +#undef PB_DS_ENTRY_CMP_DEC +#undef PB_DS_RESIZE_POLICY_DEC + + } // namespace detail +} // namespace __gnu_pbds + +#endif |