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author | Stefan Radomski <github@mintwerk.de> | 2016-05-12 13:12:33 (GMT) |
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committer | Stefan Radomski <github@mintwerk.de> | 2016-05-12 13:12:33 (GMT) |
commit | b62e7979600feee23dc7cdb61042a8fc7673122b (patch) | |
tree | f7351372f37979dd2d048e0b68a16a4cd3b2aadb /contrib/src/boost/mpl/aux_/template_arity.hpp | |
parent | 1b11b310be61e51b3ac5ebb83f7c8a33aef3d6e8 (diff) | |
download | uscxml-b62e7979600feee23dc7cdb61042a8fc7673122b.zip uscxml-b62e7979600feee23dc7cdb61042a8fc7673122b.tar.gz uscxml-b62e7979600feee23dc7cdb61042a8fc7673122b.tar.bz2 |
Major Refactoring v2.0
Diffstat (limited to 'contrib/src/boost/mpl/aux_/template_arity.hpp')
-rw-r--r-- | contrib/src/boost/mpl/aux_/template_arity.hpp | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/contrib/src/boost/mpl/aux_/template_arity.hpp b/contrib/src/boost/mpl/aux_/template_arity.hpp new file mode 100644 index 0000000..f011159 --- /dev/null +++ b/contrib/src/boost/mpl/aux_/template_arity.hpp @@ -0,0 +1,189 @@ + +#if !defined(BOOST_PP_IS_ITERATING) + +///// header body + +#ifndef BOOST_MPL_AUX_TEMPLATE_ARITY_HPP_INCLUDED +#define BOOST_MPL_AUX_TEMPLATE_ARITY_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. + +// $Id$ +// $Date$ +// $Revision$ + +#include <boost/mpl/aux_/config/ttp.hpp> +#include <boost/mpl/aux_/config/lambda.hpp> + +#if !defined(BOOST_MPL_PREPROCESSING_MODE) +# include <boost/mpl/aux_/template_arity_fwd.hpp> +# include <boost/mpl/int.hpp> +# if !defined(BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT) +# if defined(BOOST_MPL_CFG_EXTENDED_TEMPLATE_PARAMETERS_MATCHING) +# include <boost/mpl/aux_/type_wrapper.hpp> +# endif +# else +# include <boost/mpl/aux_/has_rebind.hpp> +# endif +#endif + +#include <boost/mpl/aux_/config/static_constant.hpp> +#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 template_arity.hpp +# include <boost/mpl/aux_/include_preprocessed.hpp> + +#else + +# if !defined(BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT) +# if defined(BOOST_MPL_CFG_EXTENDED_TEMPLATE_PARAMETERS_MATCHING) + +# include <boost/mpl/limits/arity.hpp> +# include <boost/mpl/aux_/preprocessor/range.hpp> +# include <boost/mpl/aux_/preprocessor/repeat.hpp> +# include <boost/mpl/aux_/preprocessor/params.hpp> +# include <boost/mpl/aux_/nttp_decl.hpp> + +# include <boost/preprocessor/seq/fold_left.hpp> +# include <boost/preprocessor/comma_if.hpp> +# include <boost/preprocessor/iterate.hpp> +# include <boost/preprocessor/inc.hpp> +# include <boost/preprocessor/cat.hpp> + +# define AUX778076_ARITY BOOST_PP_INC(BOOST_MPL_LIMIT_METAFUNCTION_ARITY) + +namespace boost { namespace mpl { namespace aux { + +template< BOOST_MPL_AUX_NTTP_DECL(int, N) > struct arity_tag +{ + typedef char (&type)[N + 1]; +}; + +# define AUX778076_MAX_ARITY_OP(unused, state, i_) \ + ( BOOST_PP_CAT(C,i_) > 0 ? BOOST_PP_CAT(C,i_) : state ) \ +/**/ + +template< + BOOST_MPL_PP_PARAMS(AUX778076_ARITY, BOOST_MPL_AUX_NTTP_DECL(int, C)) + > +struct max_arity +{ + BOOST_STATIC_CONSTANT(int, value = + BOOST_PP_SEQ_FOLD_LEFT( + AUX778076_MAX_ARITY_OP + , -1 + , BOOST_MPL_PP_RANGE(1, AUX778076_ARITY) + ) + ); +}; + +# undef AUX778076_MAX_ARITY_OP + +arity_tag<0>::type arity_helper(...); + +# define BOOST_PP_ITERATION_LIMITS (1, AUX778076_ARITY) +# define BOOST_PP_FILENAME_1 <boost/mpl/aux_/template_arity.hpp> +# include BOOST_PP_ITERATE() + +template< typename F, BOOST_MPL_AUX_NTTP_DECL(int, N) > +struct template_arity_impl +{ + BOOST_STATIC_CONSTANT(int, value = + sizeof(::boost::mpl::aux::arity_helper(type_wrapper<F>(),arity_tag<N>())) - 1 + ); +}; + +# define AUX778076_TEMPLATE_ARITY_IMPL_INVOCATION(unused, i_, F) \ + BOOST_PP_COMMA_IF(i_) template_arity_impl<F,BOOST_PP_INC(i_)>::value \ +/**/ + +template< typename F > +struct template_arity +{ + BOOST_STATIC_CONSTANT(int, value = ( + max_arity< BOOST_MPL_PP_REPEAT( + AUX778076_ARITY + , AUX778076_TEMPLATE_ARITY_IMPL_INVOCATION + , F + ) >::value + )); + + typedef mpl::int_<value> type; +}; + +# undef AUX778076_TEMPLATE_ARITY_IMPL_INVOCATION + +# undef AUX778076_ARITY + +}}} + +# endif // BOOST_MPL_CFG_EXTENDED_TEMPLATE_PARAMETERS_MATCHING +# else // BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT + +# include <boost/mpl/aux_/config/eti.hpp> + +namespace boost { namespace mpl { namespace aux { + +template< bool > +struct template_arity_impl +{ + template< typename F > struct result_ + : mpl::int_<-1> + { + }; +}; + +template<> +struct template_arity_impl<true> +{ + template< typename F > struct result_ + : F::arity + { + }; +}; + +template< typename F > +struct template_arity + : template_arity_impl< ::boost::mpl::aux::has_rebind<F>::value > + ::template result_<F> +{ +}; + +#if defined(BOOST_MPL_CFG_MSVC_ETI_BUG) +template<> +struct template_arity<int> + : mpl::int_<-1> +{ +}; +#endif + +}}} + +# endif // BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT + +#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS +#endif // BOOST_MPL_AUX_TEMPLATE_ARITY_HPP_INCLUDED + +///// iteration + +#else +#define i_ BOOST_PP_FRAME_ITERATION(1) + +template< + template< BOOST_MPL_PP_PARAMS(i_, typename P) > class F + , BOOST_MPL_PP_PARAMS(i_, typename T) + > +typename arity_tag<i_>::type +arity_helper(type_wrapper< F<BOOST_MPL_PP_PARAMS(i_, T)> >, arity_tag<i_>); + +#undef i_ +#endif // BOOST_PP_IS_ITERATING |