diff options
Diffstat (limited to 'contrib/src/boost/mpl/aux_/template_arity.hpp')
-rw-r--r-- | contrib/src/boost/mpl/aux_/template_arity.hpp | 378 |
1 files changed, 189 insertions, 189 deletions
diff --git a/contrib/src/boost/mpl/aux_/template_arity.hpp b/contrib/src/boost/mpl/aux_/template_arity.hpp index f011159..d6eda14 100644 --- a/contrib/src/boost/mpl/aux_/template_arity.hpp +++ b/contrib/src/boost/mpl/aux_/template_arity.hpp @@ -1,189 +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 +
+#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
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