FM / context

/usr/include/boost/proto/context

Name	Size	Mode	Actions
detail/	-	0755	rm
callable.hpp	9006	0644	edit dl rm
default.hpp	19624	0644	edit dl rm
null.hpp	1579	0644	edit dl rm

Edit: /usr/include/boost/proto/context/null.hpp (1579B)

#ifndef BOOST_PROTO_CONTEXT_NULL_HPP_EAN_06_24_2007
#define BOOST_PROTO_CONTEXT_NULL_HPP_EAN_06_24_2007

#include <boost/preprocessor/iteration/iterate.hpp>
#include <boost/preprocessor/repetition/repeat.hpp>
#include <boost/proto/proto_fwd.hpp>
#include <boost/proto/eval.hpp>
#include <boost/proto/traits.hpp>

namespace boost { namespace proto { namespace context
{

template<
        typename Expr
      , typename Context
      , long Arity          // = Expr::proto_arity_c
    >
    struct null_eval
    {};

template<typename Expr, typename Context>
    struct null_eval<Expr, Context, 0>
    {
        typedef void result_type;
        void operator()(Expr &, Context &) const
        {}
    };

// Additional specializations generated by the preprocessor
    #include <boost/proto/context/detail/null_eval.hpp>

/// null_context
    ///
    struct null_context
    {
        /// null_context::eval
        ///
        template<typename Expr, typename ThisContext = null_context const>
        struct eval
          : null_eval<Expr, ThisContext>
        {};
    };

}}}

#endif

/////////////////////////////////////////////////////////////////////////////// /// \file null.hpp /// Definintion of null_context\<\>, an evaluation context for /// proto::eval() that simply evaluates each child expression, doesn't /// combine the results at all, and returns void. // // Copyright 2008 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_PROTO_CONTEXT_NULL_HPP_EAN_06_24_2007 #define BOOST_PROTO_CONTEXT_NULL_HPP_EAN_06_24_2007 #include #include #include #include #include namespace boost { namespace proto { namespace context { template< typename Expr , typename Context , long Arity // = Expr::proto_arity_c > struct null_eval {}; template struct null_eval { typedef void result_type; void operator()(Expr &, Context &) const {} }; // Additional specializations generated by the preprocessor #include /// null_context /// struct null_context { /// null_context::eval /// template struct eval : null_eval {}; }; }}} #endif