FM / core

/usr/include/boost/phoenix/core

Name	Size	Mode	Actions
detail/	-	0755	rm
actor.hpp	7772	0644	edit dl rm
argument.hpp	4695	0644	edit dl rm
arity.hpp	2552	0644	edit dl rm
as_actor.hpp	798	0644	edit dl rm
call.hpp	4088	0644	edit dl rm
debug.hpp	655	0644	edit dl rm
domain.hpp	2343	0644	edit dl rm
environment.hpp	14939	0644	edit dl rm
expression.hpp	3033	0644	edit dl rm
function_equal.hpp	5511	0644	edit dl rm
is_actor.hpp	1303	0644	edit dl rm
is_nullary.hpp	5297	0644	edit dl rm
is_value.hpp	1619	0644	edit dl rm
limits.hpp	6110	0644	edit dl rm
meta_grammar.hpp	4867	0644	edit dl rm
nothing.hpp	1730	0644	edit dl rm
reference.hpp	4665	0644	edit dl rm
terminal.hpp	5124	0644	edit dl rm
terminal_fwd.hpp	808	0644	edit dl rm
v2_eval.hpp	1756	0644	edit dl rm
value.hpp	4118	0644	edit dl rm

Edit: /usr/include/boost/phoenix/core/arity.hpp (2552B)

/*==============================================================================
    Copyright (c) 2010 Thomas Heller
    Copyright (c) 2010 Eric Niebler

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)
==============================================================================*/
#ifndef BOOST_PHOENIX_CORE_ARITY_HPP
#define BOOST_PHOENIX_CORE_ARITY_HPP

#include <boost/phoenix/core/limits.hpp>
#include <boost/is_placeholder.hpp>
#include <boost/mpl/max.hpp>
#include <boost/mpl/int.hpp>
#include <boost/phoenix/core/meta_grammar.hpp>
#include <boost/phoenix/core/terminal_fwd.hpp>
#include <boost/phoenix/support/vector.hpp>
#include <boost/proto/matches.hpp>
#include <boost/proto/transform/fold.hpp>

namespace boost { namespace phoenix
{
    /////////////////////////////////////////////////////////////////////////////
    //
    //  Calculate the arity of an expression using proto transforms
    //
    /////////////////////////////////////////////////////////////////////////////
    
    struct arity;

namespace result_of
    {
        template <typename Expr>
        struct arity
            : mpl::int_<
                evaluator::impl<
                    Expr const&
                  , vector2<
                        mpl::int_<0>
                      , boost::phoenix::arity
                    >&
                  , proto::empty_env
                >::result_type::value
            >
        {};
    }

struct arity
    {
        template <typename Rule, typename Dummy = void>
        struct when
            : proto::fold<
                proto::_
              , mpl::int_<0>
              , proto::make<mpl::max<
                    proto::_state
                  , proto::call<
                        evaluator(
                            proto::_
                          , proto::call<
                                functional::context(_env, _actions)
                            >
                        )
                    >
                >()>
            >
        {};
    };

template <typename Dummy>
    struct arity::when<rule::argument, Dummy>
        : proto::make<is_placeholder<proto::_value>()>
    {};
    
    template <typename Dummy>
    struct arity::when<rule::custom_terminal, Dummy>
        : proto::make<mpl::int_<0>()>
    {};
    
    template <typename Dummy>
    struct arity::when<rule::terminal, Dummy>
        : proto::make<mpl::int_<0>()>
    {};
}}

#endif

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