605 lines
21 KiB
Plaintext
605 lines
21 KiB
Plaintext
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// (C) Copyright Jeremy Siek 1999-2001.
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// Copyright (C) 2006 Trustees of Indiana University
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// Authors: Douglas Gregor and Jeremy Siek
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/property_map for documentation.
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#ifndef BOOST_PROPERTY_MAP_HPP
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#define BOOST_PROPERTY_MAP_HPP
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#include <boost/assert.hpp>
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#include <boost/config.hpp>
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#include <boost/static_assert.hpp>
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#include <cstddef>
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#include <boost/detail/iterator.hpp>
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#include <boost/concept/assert.hpp>
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#include <boost/concept_check.hpp>
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#include <boost/concept_archetype.hpp>
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#include <boost/mpl/assert.hpp>
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#include <boost/mpl/or.hpp>
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#include <boost/mpl/and.hpp>
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#include <boost/mpl/has_xxx.hpp>
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#include <boost/type_traits/is_same.hpp>
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namespace boost {
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//=========================================================================
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// property_traits class
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BOOST_MPL_HAS_XXX_TRAIT_DEF(key_type)
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BOOST_MPL_HAS_XXX_TRAIT_DEF(value_type)
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BOOST_MPL_HAS_XXX_TRAIT_DEF(reference)
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BOOST_MPL_HAS_XXX_TRAIT_DEF(category)
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template<class PA>
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struct is_property_map :
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boost::mpl::and_<
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has_key_type<PA>,
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has_value_type<PA>,
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has_reference<PA>,
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has_category<PA>
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>
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{};
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template <typename PA>
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struct default_property_traits {
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typedef typename PA::key_type key_type;
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typedef typename PA::value_type value_type;
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typedef typename PA::reference reference;
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typedef typename PA::category category;
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};
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struct null_property_traits {};
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template <typename PA>
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struct property_traits :
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boost::mpl::if_<is_property_map<PA>,
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default_property_traits<PA>,
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null_property_traits>::type
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{};
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#if 0
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template <typename PA>
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struct property_traits {
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typedef typename PA::key_type key_type;
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typedef typename PA::value_type value_type;
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typedef typename PA::reference reference;
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typedef typename PA::category category;
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};
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#endif
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//=========================================================================
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// property_traits category tags
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namespace detail {
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enum ePropertyMapID { READABLE_PA, WRITABLE_PA,
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READ_WRITE_PA, LVALUE_PA, OP_BRACKET_PA,
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RAND_ACCESS_ITER_PA, LAST_PA };
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}
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struct readable_property_map_tag { enum { id = detail::READABLE_PA }; };
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struct writable_property_map_tag { enum { id = detail::WRITABLE_PA }; };
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struct read_write_property_map_tag :
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public readable_property_map_tag,
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public writable_property_map_tag
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{ enum { id = detail::READ_WRITE_PA }; };
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struct lvalue_property_map_tag : public read_write_property_map_tag
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{ enum { id = detail::LVALUE_PA }; };
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//=========================================================================
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// property_traits specialization for pointers
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template <class T>
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struct property_traits<T*> {
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// BOOST_STATIC_ASSERT(boost::is_same<T, T*>::value && !"Using pointers as property maps is deprecated");
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typedef T value_type;
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typedef value_type& reference;
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typedef std::ptrdiff_t key_type;
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typedef lvalue_property_map_tag category;
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};
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template <class T>
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struct property_traits<const T*> {
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// BOOST_STATIC_ASSERT(boost::is_same<T, T*>::value && !"Using pointers as property maps is deprecated");
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typedef T value_type;
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typedef const value_type& reference;
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typedef std::ptrdiff_t key_type;
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typedef lvalue_property_map_tag category;
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};
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#if !defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
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// MSVC doesn't have Koenig lookup, so the user has to
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// do boost::get() anyways, and the using clause
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// doesn't really work for MSVC.
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} // namespace boost
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#endif
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// These need to go in global namespace because Koenig
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// lookup does not apply to T*.
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// V must be convertible to T
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template <class T, class V>
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inline void put(T* pa, std::ptrdiff_t k, const V& val) { pa[k] = val; }
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template <class T>
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inline const T& get(const T* pa, std::ptrdiff_t k) { return pa[k]; }
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#if !defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
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namespace boost {
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using ::put;
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using ::get;
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#endif
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//=========================================================================
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// concept checks for property maps
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template <class PMap, class Key>
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struct ReadablePropertyMapConcept
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{
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typedef typename property_traits<PMap>::key_type key_type;
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typedef typename property_traits<PMap>::reference reference;
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typedef typename property_traits<PMap>::category Category;
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typedef boost::readable_property_map_tag ReadableTag;
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void constraints() {
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BOOST_CONCEPT_ASSERT((ConvertibleConcept<Category, ReadableTag>));
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val = get(pmap, k);
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}
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PMap pmap;
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Key k;
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typename property_traits<PMap>::value_type val;
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};
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template <typename KeyArchetype, typename ValueArchetype>
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struct readable_property_map_archetype {
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typedef KeyArchetype key_type;
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typedef ValueArchetype value_type;
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typedef convertible_to_archetype<ValueArchetype> reference;
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typedef readable_property_map_tag category;
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};
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template <typename K, typename V>
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const typename readable_property_map_archetype<K,V>::reference&
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get(const readable_property_map_archetype<K,V>&,
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const typename readable_property_map_archetype<K,V>::key_type&)
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{
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typedef typename readable_property_map_archetype<K,V>::reference R;
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return static_object<R>::get();
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}
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template <class PMap, class Key>
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struct WritablePropertyMapConcept
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{
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typedef typename property_traits<PMap>::key_type key_type;
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typedef typename property_traits<PMap>::category Category;
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typedef boost::writable_property_map_tag WritableTag;
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void constraints() {
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BOOST_CONCEPT_ASSERT((ConvertibleConcept<Category, WritableTag>));
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put(pmap, k, val);
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}
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PMap pmap;
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Key k;
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typename property_traits<PMap>::value_type val;
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};
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template <typename KeyArchetype, typename ValueArchetype>
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struct writable_property_map_archetype {
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typedef KeyArchetype key_type;
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typedef ValueArchetype value_type;
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typedef void reference;
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typedef writable_property_map_tag category;
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};
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template <typename K, typename V>
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void put(const writable_property_map_archetype<K,V>&,
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const typename writable_property_map_archetype<K,V>::key_type&,
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const typename writable_property_map_archetype<K,V>::value_type&) { }
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template <class PMap, class Key>
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struct ReadWritePropertyMapConcept
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{
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typedef typename property_traits<PMap>::category Category;
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typedef boost::read_write_property_map_tag ReadWriteTag;
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void constraints() {
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BOOST_CONCEPT_ASSERT((ReadablePropertyMapConcept<PMap, Key>));
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BOOST_CONCEPT_ASSERT((WritablePropertyMapConcept<PMap, Key>));
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BOOST_CONCEPT_ASSERT((ConvertibleConcept<Category, ReadWriteTag>));
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}
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};
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template <typename KeyArchetype, typename ValueArchetype>
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struct read_write_property_map_archetype
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: public readable_property_map_archetype<KeyArchetype, ValueArchetype>,
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public writable_property_map_archetype<KeyArchetype, ValueArchetype>
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{
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typedef KeyArchetype key_type;
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typedef ValueArchetype value_type;
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typedef convertible_to_archetype<ValueArchetype> reference;
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typedef read_write_property_map_tag category;
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};
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template <class PMap, class Key>
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struct LvaluePropertyMapConcept
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{
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typedef typename property_traits<PMap>::category Category;
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typedef boost::lvalue_property_map_tag LvalueTag;
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typedef typename property_traits<PMap>::reference reference;
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void constraints() {
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BOOST_CONCEPT_ASSERT((ReadablePropertyMapConcept<PMap, Key>));
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BOOST_CONCEPT_ASSERT((ConvertibleConcept<Category, LvalueTag>));
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typedef typename property_traits<PMap>::value_type value_type;
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BOOST_MPL_ASSERT((boost::mpl::or_<
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boost::is_same<const value_type&, reference>,
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boost::is_same<value_type&, reference> >));
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reference ref = pmap[k];
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ignore_unused_variable_warning(ref);
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}
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PMap pmap;
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Key k;
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};
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template <typename KeyArchetype, typename ValueArchetype>
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struct lvalue_property_map_archetype
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: public readable_property_map_archetype<KeyArchetype, ValueArchetype>
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{
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typedef KeyArchetype key_type;
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typedef ValueArchetype value_type;
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typedef const ValueArchetype& reference;
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typedef lvalue_property_map_tag category;
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const value_type& operator[](const key_type&) const {
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return static_object<value_type>::get();
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}
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};
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template <class PMap, class Key>
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struct Mutable_LvaluePropertyMapConcept
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{
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typedef typename property_traits<PMap>::category Category;
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typedef boost::lvalue_property_map_tag LvalueTag;
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typedef typename property_traits<PMap>::reference reference;
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void constraints() {
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BOOST_CONCEPT_ASSERT((ReadWritePropertyMapConcept<PMap, Key>));
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BOOST_CONCEPT_ASSERT((ConvertibleConcept<Category, LvalueTag>));
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typedef typename property_traits<PMap>::value_type value_type;
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BOOST_MPL_ASSERT((boost::is_same<value_type&, reference>));
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reference ref = pmap[k];
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ignore_unused_variable_warning(ref);
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}
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PMap pmap;
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Key k;
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};
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template <typename KeyArchetype, typename ValueArchetype>
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struct mutable_lvalue_property_map_archetype
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: public readable_property_map_archetype<KeyArchetype, ValueArchetype>,
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public writable_property_map_archetype<KeyArchetype, ValueArchetype>
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{
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typedef KeyArchetype key_type;
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typedef ValueArchetype value_type;
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typedef ValueArchetype& reference;
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typedef lvalue_property_map_tag category;
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value_type& operator[](const key_type&) const {
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return static_object<value_type>::get();
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}
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};
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template <typename T>
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struct typed_identity_property_map;
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// A helper class for constructing a property map
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// from a class that implements operator[]
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template <class Reference, class LvaluePropertyMap>
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struct put_get_helper { };
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template <class PropertyMap, class Reference, class K>
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inline Reference
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get(const put_get_helper<Reference, PropertyMap>& pa, const K& k)
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{
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Reference v = static_cast<const PropertyMap&>(pa)[k];
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return v;
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}
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template <class PropertyMap, class Reference, class K, class V>
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inline void
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put(const put_get_helper<Reference, PropertyMap>& pa, K k, const V& v)
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{
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static_cast<const PropertyMap&>(pa)[k] = v;
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}
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//=========================================================================
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// Adapter to turn a RandomAccessIterator into a property map
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template <class RandomAccessIterator,
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class IndexMap
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#ifdef BOOST_NO_STD_ITERATOR_TRAITS
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, class T, class R
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#else
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, class T = typename std::iterator_traits<RandomAccessIterator>::value_type
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, class R = typename std::iterator_traits<RandomAccessIterator>::reference
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#endif
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>
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class iterator_property_map
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: public boost::put_get_helper< R,
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iterator_property_map<RandomAccessIterator, IndexMap,
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T, R> >
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{
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public:
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typedef typename property_traits<IndexMap>::key_type key_type;
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typedef T value_type;
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typedef R reference;
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typedef boost::lvalue_property_map_tag category;
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inline iterator_property_map(
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RandomAccessIterator cc = RandomAccessIterator(),
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const IndexMap& _id = IndexMap() )
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: iter(cc), index(_id) { }
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inline R operator[](key_type v) const { return *(iter + get(index, v)) ; }
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protected:
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RandomAccessIterator iter;
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IndexMap index;
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};
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#if !defined BOOST_NO_STD_ITERATOR_TRAITS
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template <class RAIter, class ID>
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inline iterator_property_map<
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RAIter, ID,
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typename std::iterator_traits<RAIter>::value_type,
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typename std::iterator_traits<RAIter>::reference>
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make_iterator_property_map(RAIter iter, ID id) {
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BOOST_CONCEPT_ASSERT((RandomAccessIteratorConcept<RAIter>));
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typedef iterator_property_map<
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RAIter, ID,
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typename std::iterator_traits<RAIter>::value_type,
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typename std::iterator_traits<RAIter>::reference> PA;
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return PA(iter, id);
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}
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#endif
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template <class RAIter, class Value, class ID>
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inline iterator_property_map<RAIter, ID, Value, Value&>
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make_iterator_property_map(RAIter iter, ID id, Value) {
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BOOST_CONCEPT_ASSERT((RandomAccessIteratorConcept<RAIter>));
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typedef iterator_property_map<RAIter, ID, Value, Value&> PMap;
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return PMap(iter, id);
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}
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template <class RandomAccessIterator,
|
||
|
|
class IndexMap
|
||
|
|
#ifdef BOOST_NO_STD_ITERATOR_TRAITS
|
||
|
|
, class T, class R
|
||
|
|
#else
|
||
|
|
, class T = typename std::iterator_traits<RandomAccessIterator>::value_type
|
||
|
|
, class R = typename std::iterator_traits<RandomAccessIterator>::reference
|
||
|
|
#endif
|
||
|
|
>
|
||
|
|
class safe_iterator_property_map
|
||
|
|
: public boost::put_get_helper< R,
|
||
|
|
safe_iterator_property_map<RandomAccessIterator, IndexMap,
|
||
|
|
T, R> >
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
typedef typename property_traits<IndexMap>::key_type key_type;
|
||
|
|
typedef T value_type;
|
||
|
|
typedef R reference;
|
||
|
|
typedef boost::lvalue_property_map_tag category;
|
||
|
|
|
||
|
|
inline safe_iterator_property_map(
|
||
|
|
RandomAccessIterator first,
|
||
|
|
std::size_t n_ = 0,
|
||
|
|
const IndexMap& _id = IndexMap() )
|
||
|
|
: iter(first), n(n_), index(_id) { }
|
||
|
|
inline safe_iterator_property_map() { }
|
||
|
|
inline R operator[](key_type v) const {
|
||
|
|
BOOST_ASSERT(get(index, v) < n);
|
||
|
|
return *(iter + get(index, v)) ;
|
||
|
|
}
|
||
|
|
typename property_traits<IndexMap>::value_type size() const { return n; }
|
||
|
|
protected:
|
||
|
|
RandomAccessIterator iter;
|
||
|
|
typename property_traits<IndexMap>::value_type n;
|
||
|
|
IndexMap index;
|
||
|
|
};
|
||
|
|
|
||
|
|
template <class RAIter, class ID>
|
||
|
|
inline safe_iterator_property_map<
|
||
|
|
RAIter, ID,
|
||
|
|
typename boost::detail::iterator_traits<RAIter>::value_type,
|
||
|
|
typename boost::detail::iterator_traits<RAIter>::reference>
|
||
|
|
make_safe_iterator_property_map(RAIter iter, std::size_t n, ID id) {
|
||
|
|
BOOST_CONCEPT_ASSERT((RandomAccessIteratorConcept<RAIter>));
|
||
|
|
typedef safe_iterator_property_map<
|
||
|
|
RAIter, ID,
|
||
|
|
typename boost::detail::iterator_traits<RAIter>::value_type,
|
||
|
|
typename boost::detail::iterator_traits<RAIter>::reference> PA;
|
||
|
|
return PA(iter, n, id);
|
||
|
|
}
|
||
|
|
template <class RAIter, class Value, class ID>
|
||
|
|
inline safe_iterator_property_map<RAIter, ID, Value, Value&>
|
||
|
|
make_safe_iterator_property_map(RAIter iter, std::size_t n, ID id, Value) {
|
||
|
|
BOOST_CONCEPT_ASSERT((RandomAccessIteratorConcept<RAIter>));
|
||
|
|
typedef safe_iterator_property_map<RAIter, ID, Value, Value&> PMap;
|
||
|
|
return PMap(iter, n, id);
|
||
|
|
}
|
||
|
|
|
||
|
|
//=========================================================================
|
||
|
|
// An adaptor to turn a Unique Pair Associative Container like std::map or
|
||
|
|
// std::hash_map into an Lvalue Property Map.
|
||
|
|
|
||
|
|
template <typename UniquePairAssociativeContainer>
|
||
|
|
class associative_property_map
|
||
|
|
: public boost::put_get_helper<
|
||
|
|
typename UniquePairAssociativeContainer::value_type::second_type&,
|
||
|
|
associative_property_map<UniquePairAssociativeContainer> >
|
||
|
|
{
|
||
|
|
typedef UniquePairAssociativeContainer C;
|
||
|
|
public:
|
||
|
|
typedef typename C::key_type key_type;
|
||
|
|
typedef typename C::value_type::second_type value_type;
|
||
|
|
typedef value_type& reference;
|
||
|
|
typedef lvalue_property_map_tag category;
|
||
|
|
associative_property_map() : m_c(0) { }
|
||
|
|
associative_property_map(C& c) : m_c(&c) { }
|
||
|
|
reference operator[](const key_type& k) const {
|
||
|
|
return (*m_c)[k];
|
||
|
|
}
|
||
|
|
private:
|
||
|
|
C* m_c;
|
||
|
|
};
|
||
|
|
|
||
|
|
template <class UniquePairAssociativeContainer>
|
||
|
|
associative_property_map<UniquePairAssociativeContainer>
|
||
|
|
make_assoc_property_map(UniquePairAssociativeContainer& c)
|
||
|
|
{
|
||
|
|
return associative_property_map<UniquePairAssociativeContainer>(c);
|
||
|
|
}
|
||
|
|
|
||
|
|
template <typename UniquePairAssociativeContainer>
|
||
|
|
class const_associative_property_map
|
||
|
|
: public boost::put_get_helper<
|
||
|
|
const typename UniquePairAssociativeContainer::value_type::second_type&,
|
||
|
|
const_associative_property_map<UniquePairAssociativeContainer> >
|
||
|
|
{
|
||
|
|
typedef UniquePairAssociativeContainer C;
|
||
|
|
public:
|
||
|
|
typedef typename C::key_type key_type;
|
||
|
|
typedef typename C::value_type::second_type value_type;
|
||
|
|
typedef const value_type& reference;
|
||
|
|
typedef lvalue_property_map_tag category;
|
||
|
|
const_associative_property_map() : m_c(0) { }
|
||
|
|
const_associative_property_map(const C& c) : m_c(&c) { }
|
||
|
|
reference operator[](const key_type& k) const {
|
||
|
|
return m_c->find(k)->second;
|
||
|
|
}
|
||
|
|
private:
|
||
|
|
C const* m_c;
|
||
|
|
};
|
||
|
|
|
||
|
|
template <class UniquePairAssociativeContainer>
|
||
|
|
const_associative_property_map<UniquePairAssociativeContainer>
|
||
|
|
make_assoc_property_map(const UniquePairAssociativeContainer& c)
|
||
|
|
{
|
||
|
|
return const_associative_property_map<UniquePairAssociativeContainer>(c);
|
||
|
|
}
|
||
|
|
|
||
|
|
//=========================================================================
|
||
|
|
// A property map that always returns the same object by value.
|
||
|
|
//
|
||
|
|
template <typename ValueType, typename KeyType = void>
|
||
|
|
class static_property_map :
|
||
|
|
public
|
||
|
|
boost::put_get_helper<ValueType,static_property_map<ValueType> >
|
||
|
|
{
|
||
|
|
ValueType value;
|
||
|
|
public:
|
||
|
|
typedef KeyType key_type;
|
||
|
|
typedef ValueType value_type;
|
||
|
|
typedef ValueType reference;
|
||
|
|
typedef readable_property_map_tag category;
|
||
|
|
static_property_map(ValueType v) : value(v) {}
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
inline reference operator[](T) const { return value; }
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename KeyType, typename ValueType>
|
||
|
|
static_property_map<ValueType, KeyType>
|
||
|
|
make_static_property_map(const ValueType& v) {
|
||
|
|
return static_property_map<ValueType, KeyType>(v);
|
||
|
|
}
|
||
|
|
|
||
|
|
//=========================================================================
|
||
|
|
// A property map that always returns a reference to the same object.
|
||
|
|
//
|
||
|
|
template <typename KeyType, typename ValueType>
|
||
|
|
class ref_property_map :
|
||
|
|
public
|
||
|
|
boost::put_get_helper<ValueType&,ref_property_map<KeyType,ValueType> >
|
||
|
|
{
|
||
|
|
ValueType* value;
|
||
|
|
public:
|
||
|
|
typedef KeyType key_type;
|
||
|
|
typedef ValueType value_type;
|
||
|
|
typedef ValueType& reference;
|
||
|
|
typedef lvalue_property_map_tag category;
|
||
|
|
ref_property_map(ValueType& v) : value(&v) {}
|
||
|
|
ValueType& operator[](key_type const&) const { return *value; }
|
||
|
|
};
|
||
|
|
|
||
|
|
//=========================================================================
|
||
|
|
// A generalized identity property map
|
||
|
|
template <typename T>
|
||
|
|
struct typed_identity_property_map
|
||
|
|
: public boost::put_get_helper<T, typed_identity_property_map<T> >
|
||
|
|
{
|
||
|
|
typedef T key_type;
|
||
|
|
typedef T value_type;
|
||
|
|
typedef T reference;
|
||
|
|
typedef boost::readable_property_map_tag category;
|
||
|
|
|
||
|
|
inline value_type operator[](const key_type& v) const { return v; }
|
||
|
|
};
|
||
|
|
|
||
|
|
//=========================================================================
|
||
|
|
// A property map that applies the identity function to integers
|
||
|
|
typedef typed_identity_property_map<std::size_t> identity_property_map;
|
||
|
|
|
||
|
|
//=========================================================================
|
||
|
|
// A property map that does not do anything, for
|
||
|
|
// when you have to supply a property map, but don't need it.
|
||
|
|
namespace detail {
|
||
|
|
struct dummy_pmap_reference {
|
||
|
|
template <class T>
|
||
|
|
dummy_pmap_reference& operator=(const T&) { return *this; }
|
||
|
|
operator int() { return 0; }
|
||
|
|
};
|
||
|
|
}
|
||
|
|
class dummy_property_map
|
||
|
|
: public boost::put_get_helper<detail::dummy_pmap_reference,
|
||
|
|
dummy_property_map >
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
typedef void key_type;
|
||
|
|
typedef int value_type;
|
||
|
|
typedef detail::dummy_pmap_reference reference;
|
||
|
|
typedef boost::read_write_property_map_tag category;
|
||
|
|
inline dummy_property_map() : c(0) { }
|
||
|
|
inline dummy_property_map(value_type cc) : c(cc) { }
|
||
|
|
inline dummy_property_map(const dummy_property_map& x)
|
||
|
|
: c(x.c) { }
|
||
|
|
template <class Vertex>
|
||
|
|
inline reference operator[](Vertex) const { return reference(); }
|
||
|
|
protected:
|
||
|
|
value_type c;
|
||
|
|
};
|
||
|
|
|
||
|
|
// Convert a Readable property map into a function object
|
||
|
|
template <typename PropMap>
|
||
|
|
class property_map_function {
|
||
|
|
PropMap pm;
|
||
|
|
typedef typename property_traits<PropMap>::key_type param_type;
|
||
|
|
public:
|
||
|
|
explicit property_map_function(const PropMap& pm): pm(pm) {}
|
||
|
|
typedef typename property_traits<PropMap>::value_type result_type;
|
||
|
|
result_type operator()(const param_type& k) const {return get(pm, k);}
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename PropMap>
|
||
|
|
property_map_function<PropMap>
|
||
|
|
make_property_map_function(const PropMap& pm) {
|
||
|
|
return property_map_function<PropMap>(pm);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace boost
|
||
|
|
|
||
|
|
#ifdef BOOST_GRAPH_USE_MPI
|
||
|
|
#include <boost/property_map/parallel/parallel_property_maps.hpp>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <boost/property_map/vector_property_map.hpp>
|
||
|
|
|
||
|
|
#endif /* BOOST_PROPERTY_MAP_HPP */
|
||
|
|
|