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Diffstat (limited to 'boost/fusion/functional/adapter/fused_function_object.hpp')
-rw-r--r-- | boost/fusion/functional/adapter/fused_function_object.hpp | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/boost/fusion/functional/adapter/fused_function_object.hpp b/boost/fusion/functional/adapter/fused_function_object.hpp new file mode 100644 index 0000000000..da8ac99baf --- /dev/null +++ b/boost/fusion/functional/adapter/fused_function_object.hpp @@ -0,0 +1,100 @@ +/*============================================================================= + Copyright (c) 2006-2007 Tobias Schwinger + + Use modification and distribution are subject to 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). +==============================================================================*/ + +#if !defined(BOOST_FUSION_FUNCTIONAL_ADAPTER_FUSED_FUNCTION_OBJECT_HPP_INCLUDED) +#define BOOST_FUSION_FUNCTIONAL_ADAPTER_FUSED_FUNCTION_OBJECT_HPP_INCLUDED + +#include <boost/type_traits/add_reference.hpp> +#include <boost/config.hpp> + +#include <boost/fusion/functional/adapter/detail/access.hpp> +#include <boost/fusion/functional/invocation/invoke_function_object.hpp> + +#if defined (BOOST_MSVC) +# pragma warning(push) +# pragma warning (disable: 4512) // assignment operator could not be generated. +#endif + +namespace boost { namespace fusion +{ + template <class Function> class fused_function_object; + + //----- ---- --- -- - - - - + + template <class Function> + class fused_function_object + { + Function fnc_transformed; + + typedef typename detail::qf_c<Function>::type & func_const_fwd_t; + typedef typename detail::qf<Function>::type & func_fwd_t; + + public: + + inline explicit fused_function_object(func_const_fwd_t f = Function()) + : fnc_transformed(f) + { } + + template <class Seq> + inline typename result_of::invoke_function_object<func_const_fwd_t, + Seq const>::type operator()(Seq const & s) const + { + return fusion::invoke_function_object< + func_const_fwd_t >(this->fnc_transformed,s); + } + + template <class Seq> + inline typename result_of::invoke_function_object<func_fwd_t, + Seq const>::type + operator()(Seq const & s) + { + return fusion::invoke_function_object< + func_fwd_t >(this->fnc_transformed,s); + } + + template <class Seq> + inline typename result_of::invoke_function_object<func_const_fwd_t, + Seq>::type + operator()(Seq & s) const + { + return fusion::invoke_function_object< + func_const_fwd_t >(this->fnc_transformed,s); + } + + template <class Seq> + inline typename result_of::invoke_function_object<func_fwd_t,Seq>::type + operator()(Seq & s) + { + return fusion::invoke_function_object< + func_fwd_t >(this->fnc_transformed,s); + } + + template <typename Sig> + struct result; + + template <class Self, class Seq> + struct result< Self const (Seq) > + : result_of::invoke_function_object<func_const_fwd_t, + typename boost::remove_reference<Seq>::type > + { }; + + template <class Self, class Seq> + struct result< Self(Seq) > + : result_of::invoke_function_object<func_fwd_t, + typename boost::remove_reference<Seq>::type > + { }; + }; + +}} + +#if defined (BOOST_MSVC) +# pragma warning(pop) +#endif + +#endif + |