summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat (limited to '3rdParty/Boost/src/boost/multi_index/detail/index_matcher.hpp')
-rw-r--r--3rdParty/Boost/src/boost/multi_index/detail/index_matcher.hpp248
1 files changed, 0 insertions, 248 deletions
diff --git a/3rdParty/Boost/src/boost/multi_index/detail/index_matcher.hpp b/3rdParty/Boost/src/boost/multi_index/detail/index_matcher.hpp
deleted file mode 100644
index 5828137..0000000
--- a/3rdParty/Boost/src/boost/multi_index/detail/index_matcher.hpp
+++ /dev/null
@@ -1,248 +0,0 @@
-/* Copyright 2003-2008 Joaquin M Lopez Munoz.
- * Distributed under the Boost Software License, Version 1.0.
- * (See accompanying file LICENSE_1_0.txt or copy at
- * http://www.boost.org/LICENSE_1_0.txt)
- *
- * See http://www.boost.org/libs/multi_index for library home page.
- */
-
-#ifndef BOOST_MULTI_INDEX_DETAIL_INDEX_MATCHER_HPP
-#define BOOST_MULTI_INDEX_DETAIL_INDEX_MATCHER_HPP
-
-#if defined(_MSC_VER)&&(_MSC_VER>=1200)
-#pragma once
-#endif
-
-#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
-#include <algorithm>
-#include <boost/noncopyable.hpp>
-#include <boost/multi_index/detail/auto_space.hpp>
-#include <cstddef>
-#include <functional>
-
-namespace boost{
-
-namespace multi_index{
-
-namespace detail{
-
-/* index_matcher compares a sequence of elements against a
- * base sequence, identifying those elements that belong to the
- * longest subsequence which is ordered with respect to the base.
- * For instance, if the base sequence is:
- *
- * 0 1 2 3 4 5 6 7 8 9
- *
- * and the compared sequence (not necesarilly the same length):
- *
- * 1 4 2 3 0 7 8 9
- *
- * the elements of the longest ordered subsequence are:
- *
- * 1 2 3 7 8 9
- *
- * The algorithm for obtaining such a subsequence is called
- * Patience Sorting, described in ch. 1 of:
- * Aldous, D., Diaconis, P.: "Longest increasing subsequences: from
- * patience sorting to the Baik-Deift-Johansson Theorem", Bulletin
- * of the American Mathematical Society, vol. 36, no 4, pp. 413-432,
- * July 1999.
- * http://www.ams.org/bull/1999-36-04/S0273-0979-99-00796-X/
- * S0273-0979-99-00796-X.pdf
- *
- * This implementation is not fully generic since it assumes that
- * the sequences given are pointed to by index iterators (having a
- * get_node() memfun.)
- */
-
-namespace index_matcher{
-
-/* The algorithm stores the nodes of the base sequence and a number
- * of "piles" that are dynamically updated during the calculation
- * stage. From a logical point of view, nodes form an independent
- * sequence from piles. They are stored together so as to minimize
- * allocated memory.
- */
-
-struct entry
-{
- entry(void* node_,std::size_t pos_=0):node(node_),pos(pos_){}
-
- /* node stuff */
-
- void* node;
- std::size_t pos;
- entry* previous;
- bool ordered;
-
- struct less_by_node
- {
- bool operator()(
- const entry& x,const entry& y)const
- {
- return std::less<void*>()(x.node,y.node);
- }
- };
-
- /* pile stuff */
-
- std::size_t pile_top;
- entry* pile_top_entry;
-
- struct less_by_pile_top
- {
- bool operator()(
- const entry& x,const entry& y)const
- {
- return x.pile_top<y.pile_top;
- }
- };
-};
-
-/* common code operating on void *'s */
-
-template<typename Allocator>
-class algorithm_base:private noncopyable
-{
-protected:
- algorithm_base(const Allocator& al,std::size_t size):
- spc(al,size),size_(size),n(0),sorted(false)
- {
- }
-
- void add(void* node)
- {
- entries()[n]=entry(node,n);
- ++n;
- }
-
- void begin_algorithm()const
- {
- if(!sorted){
- std::sort(entries(),entries()+size_,entry::less_by_node());
- sorted=true;
- }
- num_piles=0;
- }
-
- void add_node_to_algorithm(void* node)const
- {
- entry* ent=
- std::lower_bound(
- entries(),entries()+size_,
- entry(node),entry::less_by_node()); /* localize entry */
- ent->ordered=false;
- std::size_t n=ent->pos; /* get its position */
-
- entry dummy(0);
- dummy.pile_top=n;
-
- entry* pile_ent= /* find the first available pile */
- std::lower_bound( /* to stack the entry */
- entries(),entries()+num_piles,
- dummy,entry::less_by_pile_top());
-
- pile_ent->pile_top=n; /* stack the entry */
- pile_ent->pile_top_entry=ent;
-
- /* if not the first pile, link entry to top of the preceding pile */
- if(pile_ent>&entries()[0]){
- ent->previous=(pile_ent-1)->pile_top_entry;
- }
-
- if(pile_ent==&entries()[num_piles]){ /* new pile? */
- ++num_piles;
- }
- }
-
- void finish_algorithm()const
- {
- if(num_piles>0){
- /* Mark those elements which are in their correct position, i.e. those
- * belonging to the longest increasing subsequence. These are those
- * elements linked from the top of the last pile.
- */
-
- entry* ent=entries()[num_piles-1].pile_top_entry;
- for(std::size_t n=num_piles;n--;){
- ent->ordered=true;
- ent=ent->previous;
- }
- }
- }
-
- bool is_ordered(void * node)const
- {
- return std::lower_bound(
- entries(),entries()+size_,
- entry(node),entry::less_by_node())->ordered;
- }
-
-private:
- entry* entries()const{return &*spc.data();}
-
- auto_space<entry,Allocator> spc;
- std::size_t size_;
- std::size_t n;
- mutable bool sorted;
- mutable std::size_t num_piles;
-};
-
-/* The algorithm has three phases:
- * - Initialization, during which the nodes of the base sequence are added.
- * - Execution.
- * - Results querying, through the is_ordered memfun.
- */
-
-template<typename Node,typename Allocator>
-class algorithm:private algorithm_base<Allocator>
-{
- typedef algorithm_base<Allocator> super;
-
-public:
- algorithm(const Allocator& al,std::size_t size):super(al,size){}
-
- void add(Node* node)
- {
- super::add(node);
- }
-
- template<typename IndexIterator>
- void execute(IndexIterator first,IndexIterator last)const
- {
- super::begin_algorithm();
-
- for(IndexIterator it=first;it!=last;++it){
- add_node_to_algorithm(get_node(it));
- }
-
- super::finish_algorithm();
- }
-
- bool is_ordered(Node* node)const
- {
- return super::is_ordered(node);
- }
-
-private:
- void add_node_to_algorithm(Node* node)const
- {
- super::add_node_to_algorithm(node);
- }
-
- template<typename IndexIterator>
- static Node* get_node(IndexIterator it)
- {
- return static_cast<Node*>(it.get_node());
- }
-};
-
-} /* namespace multi_index::detail::index_matcher */
-
-} /* namespace multi_index::detail */
-
-} /* namespace multi_index */
-
-} /* namespace boost */
-
-#endif