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1 /* Copyright 2006-2009 Joaquin M Lopez Munoz.
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2 * Distributed under the Boost Software License, Version 1.0.
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3 * (See accompanying file LICENSE_1_0.txt or copy at
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4 * http://www.boost.org/LICENSE_1_0.txt)
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5 *
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6 * See http://www.boost.org/libs/flyweight for library home page.
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7 */
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8
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9 #ifndef BOOST_FLYWEIGHT_SET_FACTORY_HPP
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10 #define BOOST_FLYWEIGHT_SET_FACTORY_HPP
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11
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12 #if defined(_MSC_VER)
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13 #pragma once
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14 #endif
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15
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16 #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
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17 #include <boost/detail/allocator_utilities.hpp>
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18 #include <boost/flyweight/assoc_container_factory.hpp>
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19 #include <boost/flyweight/factory_tag.hpp>
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20 #include <boost/flyweight/set_factory_fwd.hpp>
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21 #include <boost/mpl/aux_/lambda_support.hpp>
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22 #include <boost/mpl/if.hpp>
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23 #include <set>
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24
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25 /* Particularization of assoc_container_factory_class using a set.
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26 */
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27
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28 namespace boost{
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29
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30 namespace flyweights{
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31
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32 template<
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33 typename Entry,typename Key,
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34 typename Compare,typename Allocator
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35 >
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36 class set_factory_class:
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37 public assoc_container_factory_class<
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38 std::set<
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39 Entry,
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40 typename boost::mpl::if_<
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41 mpl::is_na<Compare>,
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42 std::less<Key>,
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43 Compare
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44 >::type,
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45 typename boost::mpl::if_<
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46 mpl::is_na<Allocator>,
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47 std::allocator<Entry>,
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48 Allocator
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49 >::type
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50 >
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51 >
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52 {
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53 public:
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54 typedef set_factory_class type;
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55 BOOST_MPL_AUX_LAMBDA_SUPPORT(
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56 4,set_factory_class,(Entry,Key,Compare,Allocator))
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57 };
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58
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59 /* set_factory_class specifier */
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60
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61 template<
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62 typename Compare,typename Allocator
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63 BOOST_FLYWEIGHT_NOT_A_PLACEHOLDER_EXPRESSION_DEF
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64 >
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65 struct set_factory:factory_marker
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66 {
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67 template<typename Entry,typename Key>
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68 struct apply:
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69 mpl::apply2<
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70 set_factory_class<
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71 boost::mpl::_1,boost::mpl::_2,Compare,Allocator
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72 >,
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73 Entry,Key
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74 >
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75 {};
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76 };
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77
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78 } /* namespace flyweights */
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79
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80 } /* namespace boost */
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81
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82 #endif
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