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Diffstat (limited to 'ext/boost/mpl/unpack_args.hpp')
-rw-r--r-- | ext/boost/mpl/unpack_args.hpp | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/ext/boost/mpl/unpack_args.hpp b/ext/boost/mpl/unpack_args.hpp new file mode 100644 index 0000000000..c5949939b6 --- /dev/null +++ b/ext/boost/mpl/unpack_args.hpp @@ -0,0 +1,150 @@ + +#if !defined(BOOST_PP_IS_ITERATING) + +///// header body + +#ifndef BOOST_MPL_UNPACK_ARGS_HPP_INCLUDED +#define BOOST_MPL_UNPACK_ARGS_HPP_INCLUDED + +// Copyright Aleksey Gurtovoy 2002-2004 +// +// 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: unpack_args.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ +// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ +// $Revision: 49267 $ + +#if !defined(BOOST_MPL_PREPROCESSING_MODE) +# include <boost/mpl/apply.hpp> +# include <boost/mpl/at.hpp> +# include <boost/mpl/size.hpp> +# include <boost/mpl/aux_/nttp_decl.hpp> +# include <boost/mpl/aux_/lambda_spec.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 unpack_args.hpp +# include <boost/mpl/aux_/include_preprocessed.hpp> + +#else + +# include <boost/mpl/limits/arity.hpp> +# include <boost/mpl/aux_/preprocessor/repeat.hpp> +# include <boost/mpl/aux_/config/ctps.hpp> +# include <boost/mpl/aux_/config/forwarding.hpp> +# include <boost/preprocessor/iterate.hpp> +# include <boost/preprocessor/cat.hpp> + + +namespace boost { namespace mpl { + +// local macros, #undef-ined at the end of the header + +# define AUX778076_UNPACK(unused, i, Args) \ + , typename at_c<Args,i>::type \ + /**/ + +# define AUX778076_UNPACKED_ARGS(n, Args) \ + BOOST_MPL_PP_REPEAT(n, AUX778076_UNPACK, Args) \ + /**/ + +namespace aux { + +#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) +template< int size, typename F, typename Args > +struct unpack_args_impl; +#else +template< BOOST_MPL_AUX_NTTP_DECL(int, size) > struct unpack_args_impl +{ + template< typename F, typename Args > struct apply; +}; +#endif + +#define BOOST_PP_ITERATION_PARAMS_1 \ + (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/unpack_args.hpp>)) +#include BOOST_PP_ITERATE() + +} + +template< + typename F + > +struct unpack_args +{ + template< typename Args > struct apply +#if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING) +# if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) + : aux::unpack_args_impl< size<Args>::value,F,Args > +# else + : aux::unpack_args_impl< size<Args>::value > + ::template apply< F,Args > +# endif + { +#else // BOOST_MPL_CFG_NO_NESTED_FORWARDING + { + typedef typename aux::unpack_args_impl< + size<Args>::value + , F + , Args + >::type type; +#endif + }; +}; + +BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(1, unpack_args) + +# undef AUX778076_UNPACK +# undef AUX778076_UNPACKED_ARGS + +}} + +#endif // BOOST_MPL_CFG_USE_PREPROCESSED_HEADERS +#endif // BOOST_MPL_UNPACK_ARGS_HPP_INCLUDED + +///// iteration, depth == 1 + +// For gcc 4.4 compatability, we must include the +// BOOST_PP_ITERATION_DEPTH test inside an #else clause. +#else // BOOST_PP_IS_ITERATING +#if BOOST_PP_ITERATION_DEPTH() == 1 + +# define i_ BOOST_PP_FRAME_ITERATION(1) + +#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) + +template< typename F, typename Args > +struct unpack_args_impl<i_,F,Args> + : BOOST_PP_CAT(apply,i_)< + F + AUX778076_UNPACKED_ARGS(i_, Args) + > +{ +}; + +#else + +template<> struct unpack_args_impl<i_> +{ + template< typename F, typename Args > struct apply + : BOOST_PP_CAT(apply,i_)< + F + AUX778076_UNPACKED_ARGS(i_, Args) + > + { + }; +}; + +#endif + +# undef i_ + +#endif // BOOST_PP_ITERATION_DEPTH() +#endif // BOOST_PP_IS_ITERATING |