Chris@16: /*=============================================================================
Chris@16:     Copyright (c) 2005-2006 Joao Abecasis
Chris@16:     Copyright (c) 2006-2007 Tobias Schwinger
Chris@16: 
Chris@16:     Use modification and distribution are subject to the Boost Software
Chris@16:     License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16:     http://www.boost.org/LICENSE_1_0.txt).
Chris@16: ==============================================================================*/
Chris@16: 
Chris@16: #if !defined(BOOST_FUSION_FUNCTIONAL_INVOCATION_INVOKE_PROCEDURE_HPP_INCLUDED)
Chris@16: #if !defined(BOOST_PP_IS_ITERATING)
Chris@16: 
Chris@16: #include <boost/preprocessor/cat.hpp>
Chris@16: #include <boost/preprocessor/iteration/iterate.hpp>
Chris@16: #include <boost/preprocessor/arithmetic/dec.hpp>
Chris@16: #include <boost/preprocessor/repetition/repeat_from_to.hpp>
Chris@16: #include <boost/preprocessor/repetition/enum.hpp>
Chris@16: #include <boost/preprocessor/repetition/enum_shifted.hpp>
Chris@16: #include <boost/preprocessor/repetition/enum_params.hpp>
Chris@16: #include <boost/preprocessor/repetition/enum_shifted_params.hpp>
Chris@16: 
Chris@16: #include <boost/type_traits/remove_reference.hpp>
Chris@16: 
Chris@16: #include <boost/mpl/front.hpp>
Chris@16: 
Chris@16: #include <boost/function_types/is_callable_builtin.hpp>
Chris@16: #include <boost/function_types/is_member_function_pointer.hpp>
Chris@16: #include <boost/function_types/parameter_types.hpp>
Chris@16: 
Chris@16: #include <boost/fusion/support/category_of.hpp>
Chris@101: #include <boost/fusion/support/detail/enabler.hpp>
Chris@16: #include <boost/fusion/sequence/intrinsic/at.hpp>
Chris@16: #include <boost/fusion/sequence/intrinsic/size.hpp>
Chris@16: #include <boost/fusion/sequence/intrinsic/begin.hpp>
Chris@16: #include <boost/fusion/iterator/next.hpp>
Chris@16: #include <boost/fusion/iterator/deref.hpp>
Chris@16: #include <boost/fusion/functional/invocation/limits.hpp>
Chris@16: #include <boost/fusion/functional/invocation/detail/that_ptr.hpp>
Chris@16: 
Chris@16: namespace boost { namespace fusion
Chris@16: {
Chris@16:     namespace detail
Chris@16:     {
Chris@16:         namespace ft = function_types;
Chris@16: 
Chris@16:         template<
Chris@16:             typename Function, class Sequence,
Chris@16:             int N = result_of::size<Sequence>::value,
Chris@16:             bool MFP = ft::is_member_function_pointer<Function>::value,
Chris@16:             bool RandomAccess = traits::is_random_access<Sequence>::value
Chris@16:             >
Chris@16:         struct invoke_procedure_impl;
Chris@16: 
Chris@16:         #define  BOOST_PP_FILENAME_1 \
Chris@16:             <boost/fusion/functional/invocation/invoke_procedure.hpp>
Chris@16:         #define  BOOST_PP_ITERATION_LIMITS \
Chris@16:             (0, BOOST_FUSION_INVOKE_PROCEDURE_MAX_ARITY)
Chris@16:         #include BOOST_PP_ITERATE()
Chris@16: 
Chris@16:     }
Chris@16: 
Chris@101:     namespace result_of
Chris@101:     {
Chris@101:         template <typename Function, class Sequence, class Enable = void>
Chris@101:         struct invoke_procedure;
Chris@101: 
Chris@101:         template <typename Function, class Sequence>
Chris@101:         struct invoke_procedure<Function, Sequence,
Chris@101:             typename detail::enabler<
Chris@101:                 typename detail::invoke_procedure_impl<
Chris@101:                     typename boost::remove_reference<Function>::type,Sequence
Chris@101:                 >::result_type
Chris@101:             >::type>
Chris@101:         {
Chris@101:             typedef void type;
Chris@101:         };
Chris@101:     }
Chris@101: 
Chris@16:     template <typename Function, class Sequence>
Chris@101:     BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@101:     inline typename result_of::invoke_procedure<Function, Sequence>::type
Chris@101:     invoke_procedure(Function f, Sequence & s)
Chris@16:     {
Chris@16:         detail::invoke_procedure_impl<
Chris@16:                 typename boost::remove_reference<Function>::type,Sequence
Chris@16:             >::call(f,s);
Chris@16:     }
Chris@16: 
Chris@16:     template <typename Function, class Sequence>
Chris@101:     BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@101:     inline typename result_of::invoke_procedure<Function, Sequence const>::type
Chris@101:     invoke_procedure(Function f, Sequence const & s)
Chris@16:     {
Chris@16:         detail::invoke_procedure_impl<
Chris@16:                 typename boost::remove_reference<Function>::type,Sequence const
Chris@16:             >::call(f,s);
Chris@16:     }
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #define BOOST_FUSION_FUNCTIONAL_INVOCATION_INVOKE_PROCEDURE_HPP_INCLUDED
Chris@16: #else // defined(BOOST_PP_IS_ITERATING)
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: //  Preprocessor vertical repetition code
Chris@16: //
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: #define N BOOST_PP_ITERATION()
Chris@16: 
Chris@16: #define M(z,j,data) fusion::at_c<j>(s)
Chris@16: 
Chris@16:         template <typename Function, class Sequence>
Chris@16:         struct invoke_procedure_impl<Function,Sequence,N,false,true>
Chris@16:         {
Chris@101:             typedef void result_type;
Chris@16: 
Chris@16: #if N > 0
Chris@16: 
Chris@101:             BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16:             static inline void call(Function & f, Sequence & s)
Chris@16:             {
Chris@16:                 f(BOOST_PP_ENUM(N,M,~));
Chris@16:             }
Chris@16: 
Chris@16: #else
Chris@16: 
Chris@101:             BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16:             static inline void call(Function & f, Sequence & /*s*/)
Chris@16:             {
Chris@16:                 f();
Chris@16:             }
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16:         };
Chris@16: 
Chris@16: #if N > 0
Chris@16:         template <typename Function, class Sequence>
Chris@16:         struct invoke_procedure_impl<Function,Sequence,N,true,true>
Chris@16:         {
Chris@101:             typedef void result_type;
Chris@101: 
Chris@101:             BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16:             static inline void call(Function & f, Sequence & s)
Chris@16:             {
Chris@16:                 (that_ptr<typename mpl::front<
Chris@16:                                 ft::parameter_types<Function> >::type
Chris@16:                     >::get(fusion::at_c<0>(s))->*f)(BOOST_PP_ENUM_SHIFTED(N,M,~));
Chris@16:             }
Chris@16:         };
Chris@16: #endif
Chris@16: 
Chris@16: #undef M
Chris@16: 
Chris@16: #define M(z,j,data)                                                             \
Chris@16:             typedef typename result_of::next< BOOST_PP_CAT(I,BOOST_PP_DEC(j))  \
Chris@16:                 >::type I ## j ;                                               \
Chris@16:             I##j i##j = fusion::next(BOOST_PP_CAT(i,BOOST_PP_DEC(j)));
Chris@16: 
Chris@16:         template <typename Function, class Sequence>
Chris@16:         struct invoke_procedure_impl<Function,Sequence,N,false,false>
Chris@16:         {
Chris@101:             typedef void result_type;
Chris@16: 
Chris@16: #if N > 0
Chris@16: 
Chris@101:             BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16:             static inline void call(Function & f, Sequence & s)
Chris@16:             {
Chris@16:                 typedef typename result_of::begin<Sequence>::type I0;
Chris@16:                 I0 i0 = fusion::begin(s);
Chris@16:                 BOOST_PP_REPEAT_FROM_TO(1,N,M,~)
Chris@16:                 f( BOOST_PP_ENUM_PARAMS(N,*i) );
Chris@16:             }
Chris@16: 
Chris@16: #else
Chris@101:             BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16:             static inline void call(Function & f, Sequence & /*s*/)
Chris@16:             {
Chris@16:                 f();
Chris@16:             }
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16:         };
Chris@16: 
Chris@16: #if N > 0
Chris@16:         template <typename Function, class Sequence>
Chris@16:         struct invoke_procedure_impl<Function,Sequence,N,true,false>
Chris@16:         {
Chris@101:             typedef void result_type;
Chris@101: 
Chris@101:             BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16:             static inline void call(Function & f, Sequence & s)
Chris@16:             {
Chris@16:                 typedef typename result_of::begin<Sequence>::type I0;
Chris@16:                 I0 i0 = fusion::begin(s);
Chris@16:                 BOOST_PP_REPEAT_FROM_TO(1,N,M,~)
Chris@16: 
Chris@16:                 (that_ptr<typename mpl::front<
Chris@16:                                 ft::parameter_types<Function> >::type
Chris@16:                     >::get(*i0)->*f)(BOOST_PP_ENUM_SHIFTED_PARAMS(N,*i));
Chris@16:             }
Chris@16:         };
Chris@16: #endif
Chris@16: 
Chris@16: #undef M
Chris@16: 
Chris@16: #undef N
Chris@16: #endif // defined(BOOST_PP_IS_ITERATING)
Chris@16: #endif
Chris@16: