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83 lines
1.9 KiB
C++
83 lines
1.9 KiB
C++
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/* Copyright 2006-2009 Joaquin M Lopez Munoz.
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* Distributed under the Boost Software License, Version 1.0.
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* (See 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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*
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* See http://www.boost.org/libs/flyweight for library home page.
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*/
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#ifndef BOOST_FLYWEIGHT_SET_FACTORY_HPP
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#define BOOST_FLYWEIGHT_SET_FACTORY_HPP
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#if defined(_MSC_VER)
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#pragma once
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#endif
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#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
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#include <boost/detail/allocator_utilities.hpp>
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#include <boost/flyweight/assoc_container_factory.hpp>
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#include <boost/flyweight/factory_tag.hpp>
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#include <boost/flyweight/set_factory_fwd.hpp>
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#include <boost/mpl/aux_/lambda_support.hpp>
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#include <boost/mpl/if.hpp>
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#include <set>
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/* Particularization of assoc_container_factory_class using a set.
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*/
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namespace boost{
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namespace flyweights{
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template<
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typename Entry,typename Key,
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typename Compare,typename Allocator
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>
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class set_factory_class:
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public assoc_container_factory_class<
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std::set<
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Entry,
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typename boost::mpl::if_<
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mpl::is_na<Compare>,
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std::less<Key>,
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Compare
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>::type,
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typename boost::mpl::if_<
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mpl::is_na<Allocator>,
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std::allocator<Entry>,
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Allocator
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>::type
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>
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>
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{
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public:
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typedef set_factory_class type;
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BOOST_MPL_AUX_LAMBDA_SUPPORT(
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4,set_factory_class,(Entry,Key,Compare,Allocator))
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};
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/* set_factory_class specifier */
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template<
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typename Compare,typename Allocator
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BOOST_FLYWEIGHT_NOT_A_PLACEHOLDER_EXPRESSION_DEF
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>
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struct set_factory:factory_marker
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{
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template<typename Entry,typename Key>
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struct apply:
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mpl::apply2<
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set_factory_class<
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boost::mpl::_1,boost::mpl::_2,Compare,Allocator
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>,
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Entry,Key
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>
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{};
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};
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} /* namespace flyweights */
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} /* namespace boost */
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#endif
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