--- /dev/null
+
+#if !defined(BOOST_PP_IS_ITERATING)
+
+///// header body
+
+#ifndef BOOST_MPL_INHERIT_HPP_INCLUDED
+#define BOOST_MPL_INHERIT_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2001-2004
+//
+// 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/mpl for documentation.
+
+// $Id: inherit.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
+// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
+// $Revision: 49267 $
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+# include <boost/mpl/empty_base.hpp>
+# include <boost/mpl/aux_/na_spec.hpp>
+# include <boost/mpl/aux_/lambda_support.hpp>
+#endif
+
+#include <boost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+ && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+# define BOOST_MPL_PREPROCESSED_HEADER inherit.hpp
+# include <boost/mpl/aux_/include_preprocessed.hpp>
+
+#else
+
+# include <boost/mpl/limits/arity.hpp>
+# include <boost/mpl/aux_/preprocessor/params.hpp>
+# include <boost/mpl/aux_/preprocessor/default_params.hpp>
+# include <boost/mpl/aux_/preprocessor/enum.hpp>
+# include <boost/mpl/aux_/config/ctps.hpp>
+# include <boost/mpl/aux_/config/dtp.hpp>
+
+# include <boost/preprocessor/iterate.hpp>
+# include <boost/preprocessor/dec.hpp>
+# include <boost/preprocessor/cat.hpp>
+
+namespace boost { namespace mpl {
+
+// 'inherit<T1,T2,..,Tn>' metafunction; returns an unspecified class type
+// produced by public derivation from all metafunction's parameters
+// (T1,T2,..,Tn), except the parameters of 'empty_base' class type;
+// regardless the position and number of 'empty_base' parameters in the
+// metafunction's argument list, derivation from them is always a no-op;
+// for instance:
+// inherit<her>::type == her
+// inherit<her,my>::type == struct unspecified : her, my {};
+// inherit<empty_base,her>::type == her
+// inherit<empty_base,her,empty_base,empty_base>::type == her
+// inherit<her,empty_base,my>::type == struct unspecified : her, my {};
+// inherit<empty_base,empty_base>::type == empty_base
+
+#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
+
+template<
+ typename BOOST_MPL_AUX_NA_PARAM(T1)
+ , typename BOOST_MPL_AUX_NA_PARAM(T2)
+ >
+struct inherit2
+ : T1, T2
+{
+ typedef inherit2 type;
+ BOOST_MPL_AUX_LAMBDA_SUPPORT(2, inherit2, (T1,T2))
+};
+
+template< typename T1 >
+struct inherit2<T1,empty_base>
+{
+ typedef T1 type;
+ BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(2, inherit2, (T1,empty_base))
+};
+
+template< typename T2 >
+struct inherit2<empty_base,T2>
+{
+ typedef T2 type;
+ BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(2, inherit2, (empty_base,T2))
+};
+
+// needed to disambiguate the previous two in case when both
+// T1 and T2 == empty_base
+template<>
+struct inherit2<empty_base,empty_base>
+{
+ typedef empty_base type;
+ BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(2, inherit2, (empty_base,empty_base))
+};
+
+#else
+
+namespace aux {
+
+template< bool C1, bool C2 >
+struct inherit2_impl
+{
+ template< typename Derived, typename T1, typename T2 > struct result_
+ : T1, T2
+ {
+ typedef Derived type_;
+ };
+};
+
+template<>
+struct inherit2_impl<false,true>
+{
+ template< typename Derived, typename T1, typename T2 > struct result_
+ : T1
+ {
+ typedef T1 type_;
+ };
+};
+
+template<>
+struct inherit2_impl<true,false>
+{
+ template< typename Derived, typename T1, typename T2 > struct result_
+ : T2
+ {
+ typedef T2 type_;
+ };
+};
+
+template<>
+struct inherit2_impl<true,true>
+{
+ template< typename Derived, typename T1, typename T2 > struct result_
+ {
+ typedef T1 type_;
+ };
+};
+
+} // namespace aux
+
+template<
+ typename BOOST_MPL_AUX_NA_PARAM(T1)
+ , typename BOOST_MPL_AUX_NA_PARAM(T2)
+ >
+struct inherit2
+ : aux::inherit2_impl<
+ is_empty_base<T1>::value
+ , is_empty_base<T2>::value
+ >::template result_< inherit2<T1,T2>,T1,T2 >
+{
+ typedef typename inherit2::type_ type;
+ BOOST_MPL_AUX_LAMBDA_SUPPORT(2, inherit2, (T1,T2))
+};
+
+#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+BOOST_MPL_AUX_NA_SPEC(2, inherit2)
+
+#define BOOST_PP_ITERATION_PARAMS_1 \
+ (3,(3, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/inherit.hpp>))
+#include BOOST_PP_ITERATE()
+
+}}
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+#endif // BOOST_MPL_INHERIT_HPP_INCLUDED
+
+///// iteration
+
+#else
+#define n_ BOOST_PP_FRAME_ITERATION(1)
+
+template<
+ BOOST_MPL_PP_DEFAULT_PARAMS(n_, typename T, na)
+ >
+struct BOOST_PP_CAT(inherit,n_)
+ : inherit2<
+ typename BOOST_PP_CAT(inherit,BOOST_PP_DEC(n_))<
+ BOOST_MPL_PP_PARAMS(BOOST_PP_DEC(n_), T)
+ >::type
+ , BOOST_PP_CAT(T,n_)
+ >
+{
+ BOOST_MPL_AUX_LAMBDA_SUPPORT(
+ n_
+ , BOOST_PP_CAT(inherit,n_)
+ , (BOOST_MPL_PP_PARAMS(n_, T))
+ )
+};
+
+BOOST_MPL_AUX_NA_SPEC(n_, BOOST_PP_CAT(inherit,n_))
+
+#if n_ == BOOST_MPL_LIMIT_METAFUNCTION_ARITY
+/// primary template
+template<
+ BOOST_MPL_PP_DEFAULT_PARAMS(n_, typename T, empty_base)
+ >
+struct inherit
+ : BOOST_PP_CAT(inherit,n_)<BOOST_MPL_PP_PARAMS(n_, T)>
+{
+};
+
+// 'na' specialization
+template<>
+struct inherit< BOOST_MPL_PP_ENUM(5, na) >
+{
+ template<
+#if !defined(BOOST_MPL_CFG_NO_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES)
+ BOOST_MPL_PP_DEFAULT_PARAMS(n_, typename T, empty_base)
+#else
+ BOOST_MPL_PP_PARAMS(n_, typename T)
+#endif
+ >
+ struct apply
+ : inherit< BOOST_MPL_PP_PARAMS(n_, T) >
+ {
+ };
+};
+
+BOOST_MPL_AUX_NA_SPEC_LAMBDA(n_, inherit)
+BOOST_MPL_AUX_NA_SPEC_ARITY(n_, inherit)
+BOOST_MPL_AUX_NA_SPEC_TEMPLATE_ARITY(n_, n_, inherit)
+#endif
+
+#undef n_
+#endif // BOOST_PP_IS_ITERATING
projects / rsem.git / blobdiff