Added boost header

test/external/boost/flyweight/detail/default_value_policy.hpp

@@ -0,0 +1,58 @@
+/* Copyright 2006-2008 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_DETAIL_DEFAULT_VALUE_POLICY_HPP
+#define BOOST_FLYWEIGHT_DETAIL_DEFAULT_VALUE_POLICY_HPP
+
+#if defined(_MSC_VER)&&(_MSC_VER>=1200)
+#pragma once
+#endif
+
+#include <boost/flyweight/detail/value_tag.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+
+/* Default value policy: the key is the same as the value.
+ */
+
+namespace boost{
+
+namespace flyweights{
+
+namespace detail{
+
+template<typename Value>
+struct default_value_policy:value_marker
+{
+  typedef Value key_type;
+  typedef Value value_type;
+
+  struct rep_type
+  {
+  /* template ctors */
+
+#define BOOST_FLYWEIGHT_PERFECT_FWD_NAME explicit rep_type
+#define BOOST_FLYWEIGHT_PERFECT_FWD_BODY(n) \
+  :x(BOOST_PP_ENUM_PARAMS(n,t)){}
+#include <boost/flyweight/detail/perfect_fwd.hpp>
+
+    operator const value_type&()const{return x;}
+
+    value_type x;
+  };
+
+  static void construct_value(const rep_type&){}
+  static void copy_value(const rep_type&){}
+};
+
+} /* namespace flyweights::detail */
+
+} /* namespace flyweights */
+
+} /* namespace boost */
+
+#endif

test/external/boost/flyweight/detail/dyn_perfect_fwd.hpp

@@ -0,0 +1,75 @@
+/* Copyright 2006-2008 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.
+ */
+
+/* no include guards */
+
+#include <boost/preprocessor/arithmetic/add.hpp>
+#include <boost/preprocessor/cat.hpp>
+#include <boost/preprocessor/repetition/enum.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+#include <boost/preprocessor/repetition/repeat.hpp>
+#include <boost/preprocessor/repetition/repeat_from_to.hpp>
+#include <boost/preprocessor/seq/elem.hpp>
+#include <boost/preprocessor/seq/for_each_product.hpp> 
+#include <boost/preprocessor/seq/size.hpp>
+
+#define BOOST_FLYWEIGHT_CONST(b) BOOST_PP_CAT(BOOST_FLYWEIGHT_CONST,b)
+#define BOOST_FLYWEIGHT_CONST0
+#define BOOST_FLYWEIGHT_CONST1 const
+
+/* if mask[n]==0 --> Tn& tn
+ * if mask[n]==1 --> const Tn& tn
+ */
+
+#define BOOST_FLYWEIGHT_PERFECT_FWD_ARG(z,n,mask)                  \
+BOOST_FLYWEIGHT_CONST(BOOST_PP_SEQ_ELEM(n,mask))                   \
+BOOST_PP_CAT(T,n)& BOOST_PP_CAT(t,n)
+
+/* overload accepting size(mask) args, where the template args are
+ * marked const or not according to the given mask (a seq of 0 or 1)
+ */
+
+#define BOOST_FLYWEIGHT_PERFECT_FWD(r,mask)                        \
+template<BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(mask),typename T)> \
+BOOST_FLYWEIGHT_PERFECT_FWD_NAME(                                  \
+  BOOST_PP_ENUM(                                                   \
+    BOOST_PP_SEQ_SIZE(mask),BOOST_FLYWEIGHT_PERFECT_FWD_ARG,mask)) \
+BOOST_FLYWEIGHT_PERFECT_FWD_BODY(BOOST_PP_SEQ_SIZE(mask))
+
+#define BOOST_FLYWEIGHT_01(z,n,_) ((0)(1))
+
+/* Perfect forwarding overloads accepting 1 to n args */
+ 
+#define BOOST_FLYWEIGHT_PERFECT_FWDS_N(z,n,_)                      \
+BOOST_PP_SEQ_FOR_EACH_PRODUCT(                                     \
+  BOOST_FLYWEIGHT_PERFECT_FWD,                                     \
+  BOOST_PP_REPEAT(n,BOOST_FLYWEIGHT_01,~))
+
+#define BOOST_FLYWEIGHT_PERFECT_FWD_OVERLOADS                      \
+BOOST_PP_REPEAT_FROM_TO(                                           \
+  1,BOOST_PP_ADD(BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS,1),        \
+  BOOST_FLYWEIGHT_PERFECT_FWDS_N,~)
+
+/* generate the overloads */
+
+BOOST_FLYWEIGHT_PERFECT_FWD_OVERLOADS
+
+/* clean up */
+
+#undef BOOST_FLYWEIGHT_PERFECT_FWD_OVERLOADS
+#undef BOOST_FLYWEIGHT_01
+#undef BOOST_FLYWEIGHT_PERFECT_FWD
+#undef BOOST_FLYWEIGHT_PERFECT_FWD_ARG
+#undef BOOST_FLYWEIGHT_CONST1 
+#undef BOOST_FLYWEIGHT_CONST0
+#undef BOOST_FLYWEIGHT_CONST
+
+/* user supplied argument macros */
+
+#undef BOOST_FLYWEIGHT_PERFECT_FWD_BODY
+#undef BOOST_FLYWEIGHT_PERFECT_FWD_NAME

test/external/boost/flyweight/detail/flyweight_core.hpp

@@ -0,0 +1,252 @@
+/* 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_DETAIL_FLYWEIGHT_CORE_HPP
+#define BOOST_FLYWEIGHT_DETAIL_FLYWEIGHT_CORE_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/no_exceptions_support.hpp>
+#include <boost/detail/workaround.hpp>
+#include <boost/mpl/apply.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+
+#if BOOST_WORKAROUND(BOOST_MSVC,BOOST_TESTED_AT(1400))
+#pragma warning(push)
+#pragma warning(disable:4101)  /* unreferenced local vars */
+#endif
+
+/* flyweight_core provides the inner implementation of flyweight<> by
+ * weaving together a value policy, a flyweight factory, a holder for the
+ * factory,a tracking policy and a locking policy.
+ */
+
+namespace boost{
+
+namespace flyweights{
+
+namespace detail{
+
+template<
+  typename ValuePolicy,typename Tag,typename TrackingPolicy,
+  typename FactorySpecifier,typename LockingPolicy,typename HolderSpecifier
+>
+class flyweight_core;
+
+template<
+  typename ValuePolicy,typename Tag,typename TrackingPolicy,
+  typename FactorySpecifier,typename LockingPolicy,typename HolderSpecifier
+>
+struct flyweight_core_tracking_helper
+{
+private:
+  typedef flyweight_core<
+    ValuePolicy,Tag,TrackingPolicy,
+    FactorySpecifier,LockingPolicy,
+    HolderSpecifier
+  >                                   core;
+  typedef typename core::handle_type  handle_type;
+  typedef typename core::entry_type   entry_type;
+  
+public:
+  static const entry_type& entry(const handle_type& h)
+  {
+    return core::entry(h);
+  }
+
+  template<typename Checker>
+  static void erase(const handle_type& h,Checker check)
+  {
+    typedef typename core::lock_type lock_type;
+    lock_type lock(core::mutex());
+    if(check(h))core::factory().erase(h);
+  }
+};
+
+template<
+  typename ValuePolicy,typename Tag,typename TrackingPolicy,
+  typename FactorySpecifier,typename LockingPolicy,typename HolderSpecifier
+>
+class flyweight_core
+{
+public:
+  typedef typename ValuePolicy::key_type     key_type;
+  typedef typename ValuePolicy::value_type   value_type;
+  typedef typename ValuePolicy::rep_type     rep_type;
+  typedef typename mpl::apply2<
+    typename TrackingPolicy::entry_type,
+    rep_type,
+    key_type
+  >::type                                    entry_type;
+  typedef typename mpl::apply2<
+    FactorySpecifier,
+    entry_type,
+    key_type
+  >::type                                    factory_type;
+  typedef typename factory_type::handle_type base_handle_type;
+  typedef typename mpl::apply2<
+    typename TrackingPolicy::handle_type,
+    base_handle_type,
+    flyweight_core_tracking_helper<
+      ValuePolicy,Tag,TrackingPolicy,
+      FactorySpecifier,LockingPolicy,
+      HolderSpecifier
+    >
+  >::type                                    handle_type;
+  typedef typename LockingPolicy::mutex_type mutex_type;
+  typedef typename LockingPolicy::lock_type  lock_type;
+
+  static bool init()
+  {
+    if(static_initializer)return true;
+    else{
+      holder_arg& a=holder_type::get();
+      static_factory_ptr=&a.factory;
+      static_mutex_ptr=&a.mutex;
+      static_initializer=(static_factory_ptr!=0);
+      return static_initializer;
+    }
+  }
+
+  /* insert overloads*/
+
+#define BOOST_FLYWEIGHT_PERFECT_FWD_NAME static handle_type insert
+#define BOOST_FLYWEIGHT_PERFECT_FWD_BODY(n)                \
+{                                                          \
+  return insert_rep(rep_type(BOOST_PP_ENUM_PARAMS(n,t))); \
+}
+#include <boost/flyweight/detail/perfect_fwd.hpp>
+
+  static handle_type insert(const value_type& x){return insert_value(x);}
+  static handle_type insert(value_type& x){return insert_value(x);}
+
+  static const entry_type& entry(const base_handle_type& h)
+  {
+    return factory().entry(h);
+  }
+
+  static const value_type& value(const handle_type& h)
+  {
+    return static_cast<const rep_type&>(entry(h));
+  }
+
+  static const key_type& key(const handle_type& h)
+  {
+    return static_cast<const rep_type&>(entry(h));
+  }
+
+  static factory_type& factory()
+  {
+    return *static_factory_ptr;
+  }
+
+  static mutex_type& mutex()
+  {
+    return *static_mutex_ptr;
+  }
+
+private:
+  struct                              holder_arg
+  {
+    factory_type factory;
+    mutex_type   mutex;
+  };
+  typedef typename mpl::apply1<
+    HolderSpecifier,
+    holder_arg
+  >::type                             holder_type;
+
+  static handle_type insert_rep(const rep_type& x)
+  {
+    init();
+    entry_type       e(x);
+    lock_type        lock(mutex());
+    base_handle_type h(factory().insert(e));
+    BOOST_TRY{
+      ValuePolicy::construct_value(
+        static_cast<const rep_type&>(entry(h)));
+    }
+    BOOST_CATCH(...){
+      factory().erase(h);
+      BOOST_RETHROW;
+    }
+    BOOST_CATCH_END
+    return static_cast<handle_type>(h);
+  }
+
+  static handle_type insert_value(const value_type& x)
+  {
+    init();
+    entry_type       e((rep_type(x)));
+    lock_type        lock(mutex());
+    base_handle_type h(factory().insert(e));
+    BOOST_TRY{
+      ValuePolicy::copy_value(
+        static_cast<const rep_type&>(entry(h)));
+    }
+    BOOST_CATCH(...){
+      factory().erase(h);
+      BOOST_RETHROW;
+    }
+    BOOST_CATCH_END
+    return static_cast<handle_type>(h);
+  }
+
+  static bool          static_initializer;
+  static factory_type* static_factory_ptr;
+  static mutex_type*   static_mutex_ptr;
+};
+
+template<
+  typename ValuePolicy,typename Tag,typename TrackingPolicy,
+  typename FactorySpecifier,typename LockingPolicy,typename HolderSpecifier
+>
+bool
+flyweight_core<
+  ValuePolicy,Tag,TrackingPolicy,
+  FactorySpecifier,LockingPolicy,HolderSpecifier>::static_initializer=
+  flyweight_core<
+      ValuePolicy,Tag,TrackingPolicy,
+      FactorySpecifier,LockingPolicy,HolderSpecifier>::init();
+
+template<
+  typename ValuePolicy,typename Tag,typename TrackingPolicy,
+  typename FactorySpecifier,typename LockingPolicy,typename HolderSpecifier
+>
+typename flyweight_core<
+  ValuePolicy,Tag,TrackingPolicy,
+  FactorySpecifier,LockingPolicy,HolderSpecifier>::factory_type*
+flyweight_core<
+  ValuePolicy,Tag,TrackingPolicy,
+  FactorySpecifier,LockingPolicy,HolderSpecifier>::static_factory_ptr=0;
+
+template<
+  typename ValuePolicy,typename Tag,typename TrackingPolicy,
+  typename FactorySpecifier,typename LockingPolicy,typename HolderSpecifier
+>
+typename flyweight_core<
+  ValuePolicy,Tag,TrackingPolicy,
+  FactorySpecifier,LockingPolicy,HolderSpecifier>::mutex_type*
+flyweight_core<
+  ValuePolicy,Tag,TrackingPolicy,
+  FactorySpecifier,LockingPolicy,HolderSpecifier>::static_mutex_ptr=0;
+
+} /* namespace flyweights::detail */
+
+} /* namespace flyweights */
+
+} /* namespace boost */
+
+#if BOOST_WORKAROUND(BOOST_MSVC,BOOST_TESTED_AT(1400))
+#pragma warning(pop)
+#endif
+
+#endif

test/external/boost/flyweight/detail/is_placeholder_expr.hpp

@@ -0,0 +1,65 @@
+/* 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_DETAIL_IS_PLACEHOLDER_EXPR_HPP
+#define BOOST_FLYWEIGHT_DETAIL_IS_PLACEHOLDER_EXPR_HPP
+
+#if defined(_MSC_VER)&&(_MSC_VER>=1200)
+#pragma once
+#endif
+
+#include <boost/type_traits/is_same.hpp>
+#include <boost/mpl/apply.hpp>
+#include <boost/mpl/aux_/lambda_support.hpp>
+#include <boost/mpl/not.hpp>
+#include <boost/preprocessor/facilities/intercept.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+
+namespace boost{
+
+namespace flyweights{
+
+namespace detail{
+
+/* is_placeholder_expression<T> indicates whether T is an
+ * MPL placeholder expression.
+ */
+
+template<typename T>
+struct is_placeholder_expression_helper
+{
+  template<
+    BOOST_PP_ENUM_PARAMS(
+      BOOST_MPL_LIMIT_METAFUNCTION_ARITY,typename BOOST_PP_INTERCEPT)
+  >
+  struct apply{
+    typedef int type;
+  };
+
+  BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_placeholder_expression_helper,(T))
+};
+
+template<typename T>
+struct is_placeholder_expression:
+  mpl::not_<is_same<
+    typename mpl::apply<
+      is_placeholder_expression_helper<T>,
+      BOOST_PP_ENUM_PARAMS(
+        BOOST_MPL_LIMIT_METAFUNCTION_ARITY,int BOOST_PP_INTERCEPT)
+    >::type,
+    int
+  > >
+{};
+
+} /* namespace flyweights::detail */
+
+} /* namespace flyweights */
+
+} /* namespace boost */
+
+#endif

test/external/boost/flyweight/detail/nested_xxx_if_not_ph.hpp

@@ -0,0 +1,39 @@
+/* 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_DETAIL_NESTED_XXX_IF_NOT_PH_HPP
+#define BOOST_FLYWEIGHT_DETAIL_NESTED_XXX_IF_NOT_PH_HPP
+
+#if defined(_MSC_VER)&&(_MSC_VER>=1200)
+#pragma once
+#endif
+
+#include <boost/flyweight/detail/is_placeholder_expr.hpp>
+#include <boost/mpl/if.hpp>
+
+/* nested_##name##_if_not_placeholder_expression<T>::type is T::name unless
+ * T is an MPL placeholder expression, in which case it defaults to int.
+ */
+
+#define BOOST_FLYWEIGHT_NESTED_XXX_IF_NOT_PLACEHOLDER_EXPRESSION_DEF(name) \
+struct nested_##name##_if_not_placeholder_expression_helper                \
+{                                                                          \
+  typedef int name;                                                        \
+};                                                                         \
+                                                                           \
+template<typename T>                                                       \
+struct nested_##name##_if_not_placeholder_expression                       \
+{                                                                          \
+  typedef typename boost::mpl::if_<                                        \
+    boost::flyweights::detail::is_placeholder_expression<T>,               \
+    nested_##name##_if_not_placeholder_expression_helper,                  \
+    T                                                                      \
+  >::type::name type;                                                      \
+};
+
+#endif

test/external/boost/flyweight/detail/not_placeholder_expr.hpp

@@ -0,0 +1,58 @@
+/* Copyright 2006-2008 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_DETAIL_NOT_PLACEHOLDER_EXPR_HPP
+#define BOOST_FLYWEIGHT_DETAIL_NOT_PLACEHOLDER_EXPR_HPP
+
+#if defined(_MSC_VER)&&(_MSC_VER>=1200)
+#pragma once
+#endif
+
+/* BOOST_FLYWEIGHT_NOT_A_PLACEHOLDER_EXPRESSION can be inserted at the end
+ * of a class template parameter declaration:
+ *   template<
+ *     typename X0,...,typename Xn
+ *     BOOST_FLYWEIGHT_NOT_A_PLACEHOLDER_EXPRESSION  
+ *   >
+ *   struct foo...
+ * to prevent instantiations from being treated as MPL placeholder
+ * expressions in the presence of placeholder arguments; this is useful
+ * to avoid masking of a metafunction class nested ::apply during
+ * MPL invocation.
+ */
+
+#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
+#include <boost/detail/workaround.hpp>
+
+#if BOOST_WORKAROUND(__GNUC__, <4)||\
+    BOOST_WORKAROUND(__GNUC__,==4)&&(__GNUC_MINOR__<2)
+/* The default trick on which the macro is based, namely adding a int=0
+ * defaulted template parameter, does not work in GCC prior to 4.2 due to
+ * an unfortunate compiler non-standard extension, as explained in
+ *   http://lists.boost.org/boost-users/2007/07/29866.php
+ * We resort to an uglier technique, adding defaulted template parameters
+ * so as to exceed BOOST_MPL_LIMIT_METAFUNCTION_ARITY.
+ */
+
+#include <boost/mpl/limits/arity.hpp>
+#include <boost/preprocessor/facilities/intercept.hpp>
+#include <boost/preprocessor/repetition/enum_trailing_params.hpp>
+
+#define BOOST_FLYWEIGHT_NOT_A_PLACEHOLDER_EXPRESSION                  \
+BOOST_PP_ENUM_TRAILING_PARAMS(                                        \
+  BOOST_MPL_LIMIT_METAFUNCTION_ARITY,typename=int BOOST_PP_INTERCEPT)
+#define BOOST_FLYWEIGHT_NOT_A_PLACEHOLDER_EXPRESSION_DEF              \
+BOOST_PP_ENUM_TRAILING_PARAMS(                                        \
+  BOOST_MPL_LIMIT_METAFUNCTION_ARITY,typename BOOST_PP_INTERCEPT)
+
+#else
+#define BOOST_FLYWEIGHT_NOT_A_PLACEHOLDER_EXPRESSION  ,int=0
+#define BOOST_FLYWEIGHT_NOT_A_PLACEHOLDER_EXPRESSION_DEF  ,int
+#endif
+
+#endif

test/external/boost/flyweight/detail/perfect_fwd.hpp

@@ -0,0 +1,28 @@
+/* Copyright 2006-2008 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.
+ */
+
+/* Brute force implementation of perfect forwarding overloads.
+ * Usage: include after having defined the argument macros:
+ *   BOOST_FLYWEIGHT_PERFECT_FWD_NAME
+ *   BOOST_FLYWEIGHT_PERFECT_FWD_BODY
+ */
+
+/* This user_definable macro limits the maximum number of arguments to
+ * be perfect forwarded. Beware combinatorial explosion: manual perfect
+ * forwarding for n arguments produces 2^n distinct overloads.
+ */
+
+#if !defined(BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS)
+#define BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS 5
+#endif
+
+#if BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS<=5
+#include <boost/flyweight/detail/pp_perfect_fwd.hpp>
+#else
+#include <boost/flyweight/detail/dyn_perfect_fwd.hpp>
+#endif

test/external/boost/flyweight/detail/pp_perfect_fwd.hpp

@@ -0,0 +1,153 @@
+/* Copyright 2006-2008 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.
+ */
+
+/* no include guards */
+
+#if BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS>=1
+#define BOOST_FLYWEIGHT_PERFECT_FWDS_1 \
+template<typename T0> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(1)\
+template<typename T0> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(1)
+#endif
+
+#if BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS>=2
+#define BOOST_FLYWEIGHT_PERFECT_FWDS_2 \
+template<typename T0,typename T1> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(2)\
+template<typename T0,typename T1> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(2)\
+template<typename T0,typename T1> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(2)\
+template<typename T0,typename T1> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(2)
+#endif
+
+#if BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS>=3
+#define BOOST_FLYWEIGHT_PERFECT_FWDS_3 \
+template<typename T0,typename T1,typename T2> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,T2& t2)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(3)\
+template<typename T0,typename T1,typename T2> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,const T2& t2)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(3)\
+template<typename T0,typename T1,typename T2> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,T2& t2)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(3)\
+template<typename T0,typename T1,typename T2> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,const T2& t2)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(3)\
+template<typename T0,typename T1,typename T2> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,T2& t2)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(3)\
+template<typename T0,typename T1,typename T2> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,const T2& t2)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(3)\
+template<typename T0,typename T1,typename T2> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,T2& t2)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(3)\
+template<typename T0,typename T1,typename T2> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,const T2& t2)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(3)
+#endif
+
+#if BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS>=4
+#define BOOST_FLYWEIGHT_PERFECT_FWDS_4 \
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,T2& t2,T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,T2& t2,const T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,const T2& t2,T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,const T2& t2,const T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,T2& t2,T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,T2& t2,const T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,const T2& t2,T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,const T2& t2,const T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,T2& t2,T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,T2& t2,const T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,const T2& t2,T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,const T2& t2,const T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,T2& t2,T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,T2& t2,const T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,const T2& t2,T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)\
+template<typename T0,typename T1,typename T2,typename T3> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,const T2& t2,const T3& t3)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(4)
+#endif
+
+#if BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS>=5
+#define BOOST_FLYWEIGHT_PERFECT_FWDS_5 \
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,T2& t2,T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,T2& t2,T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,T2& t2,const T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,T2& t2,const T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,const T2& t2,T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,const T2& t2,T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,const T2& t2,const T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,T1& t1,const T2& t2,const T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,T2& t2,T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,T2& t2,T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,T2& t2,const T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,T2& t2,const T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,const T2& t2,T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,const T2& t2,T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,const T2& t2,const T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(T0& t0,const T1& t1,const T2& t2,const T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,T2& t2,T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,T2& t2,T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,T2& t2,const T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,T2& t2,const T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,const T2& t2,T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,const T2& t2,T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,const T2& t2,const T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,T1& t1,const T2& t2,const T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,T2& t2,T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,T2& t2,T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,T2& t2,const T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,T2& t2,const T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,const T2& t2,T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,const T2& t2,T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,const T2& t2,const T3& t3,T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)\
+template<typename T0,typename T1,typename T2,typename T3,typename T4> BOOST_FLYWEIGHT_PERFECT_FWD_NAME(const T0& t0,const T1& t1,const T2& t2,const T3& t3,const T4& t4)BOOST_FLYWEIGHT_PERFECT_FWD_BODY(5)
+#endif
+
+#if   BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS==0
+#define BOOST_FLYWEIGHT_PERFECT_FWD_OVERLOADS
+#elif BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS==1
+#define BOOST_FLYWEIGHT_PERFECT_FWD_OVERLOADS \
+BOOST_FLYWEIGHT_PERFECT_FWDS_1
+#elif BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS==2
+#define BOOST_FLYWEIGHT_PERFECT_FWD_OVERLOADS \
+BOOST_FLYWEIGHT_PERFECT_FWDS_1                \
+BOOST_FLYWEIGHT_PERFECT_FWDS_2
+#elif BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS==3
+#define BOOST_FLYWEIGHT_PERFECT_FWD_OVERLOADS \
+BOOST_FLYWEIGHT_PERFECT_FWDS_1                \
+BOOST_FLYWEIGHT_PERFECT_FWDS_2                \
+BOOST_FLYWEIGHT_PERFECT_FWDS_3
+#elif BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS==4
+#define BOOST_FLYWEIGHT_PERFECT_FWD_OVERLOADS \
+BOOST_FLYWEIGHT_PERFECT_FWDS_1                \
+BOOST_FLYWEIGHT_PERFECT_FWDS_2                \
+BOOST_FLYWEIGHT_PERFECT_FWDS_3                \
+BOOST_FLYWEIGHT_PERFECT_FWDS_4
+#else /* BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS==5 */
+#define BOOST_FLYWEIGHT_PERFECT_FWD_OVERLOADS \
+BOOST_FLYWEIGHT_PERFECT_FWDS_1                \
+BOOST_FLYWEIGHT_PERFECT_FWDS_2                \
+BOOST_FLYWEIGHT_PERFECT_FWDS_3                \
+BOOST_FLYWEIGHT_PERFECT_FWDS_4                \
+BOOST_FLYWEIGHT_PERFECT_FWDS_5
+#endif
+
+/* generate the overloads */
+
+BOOST_FLYWEIGHT_PERFECT_FWD_OVERLOADS
+
+/* clean up */
+
+#undef BOOST_FLYWEIGHT_PERFECT_FWD_OVERLOADS
+
+#if BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS>=1
+#undef BOOST_FLYWEIGHT_PERFECT_FWDS_1
+#endif
+
+#if BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS>=2
+#undef BOOST_FLYWEIGHT_PERFECT_FWDS_2
+#endif
+
+#if BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS>=3
+#undef BOOST_FLYWEIGHT_PERFECT_FWDS_3
+#endif
+
+#if BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS>=4
+#undef BOOST_FLYWEIGHT_PERFECT_FWDS_4
+#endif
+
+#if BOOST_FLYWEIGHT_LIMIT_PERFECT_FWD_ARGS>=5
+#undef BOOST_FLYWEIGHT_PERFECT_FWDS_5
+#endif
+
+/* user supplied argument macros */
+
+#undef BOOST_FLYWEIGHT_PERFECT_FWD_NAME
+#undef BOOST_FLYWEIGHT_PERFECT_FWD_BODY

test/external/boost/flyweight/detail/recursive_lw_mutex.hpp

@@ -0,0 +1,91 @@
+/* Copyright 2006-2008 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_DETAIL_RECURSIVE_LW_MUTEX_HPP
+#define BOOST_FLYWEIGHT_DETAIL_RECURSIVE_LW_MUTEX_HPP
+
+#if defined(_MSC_VER)&&(_MSC_VER>=1200)
+#pragma once
+#endif
+
+/* Recursive lightweight mutex. Relies entirely on
+ * boost::detail::lightweight_mutex, except in Pthreads, where we
+ * explicitly use the PTHREAD_MUTEX_RECURSIVE attribute
+ * (lightweight_mutex uses the default mutex type instead).
+ */
+
+#include <boost/config.hpp>
+
+#if !defined(BOOST_HAS_PTHREADS)
+#include <boost/detail/lightweight_mutex.hpp>
+namespace boost{
+
+namespace flyweights{
+
+namespace detail{
+
+typedef boost::detail::lightweight_mutex recursive_lightweight_mutex;
+
+} /* namespace flyweights::detail */
+
+} /* namespace flyweights */
+
+} /* namespace boost */
+#else
+/* code shamelessly ripped from <boost/detail/lwm_pthreads.hpp> */
+
+#include <boost/noncopyable.hpp>
+#include <pthread.h>
+
+namespace boost{
+
+namespace flyweights{
+
+namespace detail{
+
+struct recursive_lightweight_mutex:noncopyable
+{
+  recursive_lightweight_mutex()
+  {
+    pthread_mutexattr_t attr;
+    pthread_mutexattr_init(&attr);
+    pthread_mutexattr_settype(&attr,PTHREAD_MUTEX_RECURSIVE);
+    pthread_mutex_init(&m_,&attr);
+    pthread_mutexattr_destroy(&attr);
+  }
+
+  ~recursive_lightweight_mutex(){pthread_mutex_destroy(&m_);}
+
+  struct scoped_lock;
+  friend struct scoped_lock;
+  struct scoped_lock:noncopyable
+  {
+  public:
+    scoped_lock(recursive_lightweight_mutex& m):m_(m.m_)
+    {
+        pthread_mutex_lock(&m_);
+    }
+
+    ~scoped_lock(){pthread_mutex_unlock(&m_);}
+
+  private:
+    pthread_mutex_t& m_;
+  };
+
+private:
+  pthread_mutex_t m_;
+};
+
+} /* namespace flyweights::detail */
+
+} /* namespace flyweights */
+
+} /* namespace boost */
+#endif
+
+#endif

test/external/boost/flyweight/detail/value_tag.hpp

@@ -0,0 +1,50 @@
+/* Copyright 2006-2008 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_DETAIL_VALUE_TAG_HPP
+#define BOOST_FLYWEIGHT_DETAIL_VALUE_TAG_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/parameter/parameters.hpp>
+#include <boost/type_traits/is_base_and_derived.hpp>
+
+namespace boost{
+
+namespace flyweights{
+
+namespace detail{
+
+/* Three ways to indicate that a given class T is a value policy:
+ *   1. Make it derived from value_marker.
+ *   2. Specialize is_value to evaluate to boost::mpl::true_.
+ *   3. Pass it as value<T> when defining a flyweight type.
+ *
+ * For the time being the interface of value policies is not public.
+ */
+
+struct value_marker{};
+
+template<typename T>
+struct is_value:is_base_and_derived<value_marker,T>
+{};
+
+template<typename T=parameter::void_>
+struct value:parameter::template_keyword<value<>,T>
+{};
+
+} /* namespace flyweights::detail */
+
+} /* namespace flyweights */
+
+} /* namespace boost */
+
+#endif