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/* Copyright (C) 2007-2013 Arjen G Lentz & Antony T Curtis for Open Query
This program 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; version 2 of the License, or
(at your option) any later version.
This program 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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA */
/* ======================================================================
Open Query Graph Computation Engine, based on a concept by Arjen Lentz
v3 implementation by Antony Curtis, Arjen Lentz, Andrew McDonnell
For more information, documentation, support, enhancement engineering,
see http://openquery.com/graph or contact graph@openquery.com
======================================================================
*/
#ifndef oq_graphcore_graph_h_
#define oq_graphcore_graph_h_
#include "oqgraph_shim.h"
#include <boost/graph/two_bit_color_map.hpp>
namespace boost
{
typedef oqgraph3::graph Graph;
template<typename IndexMap = identity_property_map>
struct two_bit_judy_map
{
typedef typename property_traits<IndexMap>::key_type key_type;
typedef two_bit_color_type value_type;
typedef void reference;
typedef read_write_property_map_tag category;
open_query::judy_bitset msb;
open_query::judy_bitset lsb;
IndexMap index;
two_bit_judy_map(const IndexMap& i)
: index(i)
{ }
friend two_bit_color_type get(
const two_bit_judy_map<IndexMap>& pm,
typename property_traits<IndexMap>::key_type key)
{
typename property_traits<IndexMap>::value_type i = get(pm.index, key);
return two_bit_color_type((2*int(pm.msb.test(i))) | int(pm.lsb.test(i)));
}
friend void put(
two_bit_judy_map<IndexMap>& pm,
typename property_traits<IndexMap>::key_type key,
two_bit_color_type value)
{
typename property_traits<IndexMap>::value_type i = get(pm.index, key);
pm.msb.set(i, value & 2);
pm.lsb.set(i, value & 1);
}
};
template<typename IndexMap>
inline two_bit_judy_map<IndexMap>
make_two_bit_judy_map(const IndexMap& index)
{
return two_bit_judy_map<IndexMap>(index);
}
template <typename Type>
struct default_lazy_initializer
{
template <typename Key>
Type operator()(const Key&) const { return Type(); }
};
template <typename Type>
struct copy_initializer
{
copy_initializer(const Type& value) : _(value) { }
template <typename Key>
const Type& operator()(const Key&) const { return _; }
const Type& _;
};
template <typename Type>
copy_initializer<Type> make_copy_initializer(const Type& value)
{ return copy_initializer<Type>(value); }
template <typename Type>
struct value_initializer
{
value_initializer(const Type& value) : _(value) { }
template <typename Key>
const Type& operator()(const Key&) const { return _; }
const Type _;
};
template <typename Type>
value_initializer<Type> make_value_initializer(const Type& value)
{ return value_initializer<Type>(value); }
template <typename Key>
struct identity_initializer
{
const Key& operator()(const Key& _) const { return _; }
};
template <class Container, class Generator>
struct lazy_property_map
{
typedef lazy_property_map<Container, Generator> self;
typedef typename Container::key_type key_type;
typedef typename Container::value_type::second_type value_type;
typedef value_type& reference;
typedef lvalue_property_map_tag category;
lazy_property_map(Container& m, Generator g= Generator())
: _m(m)
, _g(g)
{ }
reference operator[](const key_type& k) const
{
typename Container::iterator found= _m.find(k);
if (_m.end() == found)
{
found= _m.insert(std::make_pair(k, _g(k))).first;
}
return found->second;
}
void set(const key_type& k, const value_type& v)
{ _m[k] = v; }
friend reference get(const self& s, const key_type& k)
{
return s[k];
}
friend void put(self& s, const key_type& k, const value_type& v)
{ s.set(k, v); }
Container& _m;
Generator _g;
};
template <class Container, class Generator>
lazy_property_map<Container, Generator>
make_lazy_property_map(Container& c, Generator g)
{ return lazy_property_map<Container, Generator>(c, g); }
}
#endif
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