boost/flyweight/set_factory.hpp
/* Copyright 2006-2009 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/flyweight for library home page.
*/
#ifndef BOOST_FLYWEIGHT_SET_FACTORY_HPP
#define BOOST_FLYWEIGHT_SET_FACTORY_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 <boost/detail/allocator_utilities.hpp>
#include <boost/flyweight/assoc_container_factory.hpp>
#include <boost/flyweight/factory_tag.hpp>
#include <boost/flyweight/set_factory_fwd.hpp>
#include <boost/mpl/aux_/lambda_support.hpp>
#include <boost/mpl/if.hpp>
#include <set>
/* Particularization of assoc_container_factory_class using a set.
*/
namespace boost{
namespace flyweights{
template<
typename Entry,typename Key,
typename Compare,typename Allocator
>
class set_factory_class:
public assoc_container_factory_class<
std::set<
Entry,
typename boost::mpl::if_<
mpl::is_na<Compare>,
std::less<Key>,
Compare
>::type,
typename boost::mpl::if_<
mpl::is_na<Allocator>,
std::allocator<Entry>,
Allocator
>::type
>
>
{
public:
typedef set_factory_class type;
BOOST_MPL_AUX_LAMBDA_SUPPORT(
4,set_factory_class,(Entry,Key,Compare,Allocator))
};
/* set_factory_class specifier */
template<
typename Compare,typename Allocator
BOOST_FLYWEIGHT_NOT_A_PLACEHOLDER_EXPRESSION_DEF
>
struct set_factory:factory_marker
{
template<typename Entry,typename Key>
struct apply:
mpl::apply2<
set_factory_class<
boost::mpl::_1,boost::mpl::_2,Compare,Allocator
>,
Entry,Key
>
{};
};
} /* namespace flyweights */
} /* namespace boost */
#endif