FM / type_erasure

/usr/include/boost/type_erasure

Name	Size	Mode	Actions
detail/	-	0755	rm
any.hpp	104285	0644	edit dl rm
any_cast.hpp	5492	0644	edit dl rm
binding.hpp	9045	0644	edit dl rm
binding_of.hpp	763	0644	edit dl rm
builtin.hpp	4318	0644	edit dl rm
call.hpp	21940	0644	edit dl rm
callable.hpp	13126	0644	edit dl rm
check_match.hpp	8181	0644	edit dl rm
concept_interface.hpp	1876	0644	edit dl rm
concept_of.hpp	1456	0644	edit dl rm
config.hpp	862	0644	edit dl rm
constructible.hpp	5344	0644	edit dl rm
deduced.hpp	1575	0644	edit dl rm
derived.hpp	927	0644	edit dl rm
dynamic_any_cast.hpp	8239	0644	edit dl rm
dynamic_binding.hpp	1099	0644	edit dl rm
exception.hpp	848	0644	edit dl rm
free.hpp	22187	0644	edit dl rm
is_empty.hpp	605	0644	edit dl rm
is_placeholder.hpp	830	0644	edit dl rm
is_subconcept.hpp	5377	0644	edit dl rm
iterator.hpp	9799	0644	edit dl rm
member.hpp	16813	0644	edit dl rm
operators.hpp	23235	0644	edit dl rm
param.hpp	9026	0644	edit dl rm
placeholder.hpp	2107	0644	edit dl rm
placeholder_of.hpp	1480	0644	edit dl rm
rebind_any.hpp	2018	0644	edit dl rm
register_binding.hpp	6431	0644	edit dl rm
relaxed.hpp	2646	0644	edit dl rm
require_match.hpp	7418	0644	edit dl rm
same_type.hpp	942	0644	edit dl rm
static_binding.hpp	831	0644	edit dl rm
tuple.hpp	17723	0644	edit dl rm
typeid_of.hpp	1866	0644	edit dl rm

Edit: /usr/include/boost/type_erasure/constructible.hpp (5344B)

// Boost.TypeErasure library
//
// Copyright 2011 Steven Watanabe
//
// 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)
//
// $Id$

#if !defined(BOOST_PP_IS_ITERATING)

#ifndef BOOST_TYPE_ERASURE_CONSTRUCTIBLE_HPP_INCLUDED
#define BOOST_TYPE_ERASURE_CONSTRUCTIBLE_HPP_INCLUDED

#include <boost/detail/workaround.hpp>
#include <boost/preprocessor/iteration/iterate.hpp>
#include <boost/preprocessor/repetition/enum_params.hpp>
#include <boost/preprocessor/repetition/enum_binary_params.hpp>
#include <boost/preprocessor/repetition/enum_trailing_params.hpp>
#include <boost/type_erasure/detail/storage.hpp>
#include <boost/type_erasure/call.hpp>
#include <boost/type_erasure/concept_interface.hpp>
#include <boost/type_erasure/config.hpp>
#include <boost/type_erasure/param.hpp>

namespace boost {
namespace type_erasure {

template<class Sig>
struct constructible;

namespace detail {
    
template<class Sig>
struct null_construct;

template<class C>
struct get_null_vtable_entry;

template<class C, class Sig>
struct vtable_adapter;

}

#ifdef BOOST_TYPE_ERASURE_DOXYGEN

/**
 * The @ref constructible concept enables calling the
 * constructor of a type contained by an @ref any.
 * @c Sig should be a function signature.  The return
 * type is the placeholder specifying the type to
 * be constructed.  The arguments are the argument
 * types of the constructor.  The arguments of
 * @c Sig may be placeholders.
 *
 * \note @ref constructible may not be specialized and
 * may not be passed to \call as it depends on the
 * implementation details of @ref any.
 */
template<class Sig>
struct constructible {};

#elif !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && \
    !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
    !BOOST_WORKAROUND(BOOST_MSVC, == 1800)

template<class R, class... T>
struct constructible<R(T...)>
{
    static ::boost::type_erasure::detail::storage
    apply(T... arg)
    {
        ::boost::type_erasure::detail::storage result;
        result.data = new R(::std::forward<T>(arg)...);
        return result;
    }
};

/// INTERNAL ONLY
template<class Base, class Tag, class... T>
struct concept_interface<
    ::boost::type_erasure::constructible<Tag(T...)>,
    Base,
    Tag
> : Base
{
    using Base::_boost_type_erasure_deduce_constructor;
    ::boost::type_erasure::constructible<Tag(T...)>*
    _boost_type_erasure_deduce_constructor(
        typename ::boost::type_erasure::as_param<Base, T>::type...) const
    {
        return 0;
    }
};

namespace detail {

template<class... T>
struct null_construct<void(T...)>
{
    static ::boost::type_erasure::detail::storage
    value(T...)
    {
        ::boost::type_erasure::detail::storage result;
        result.data = 0;
        return result;
    }
};

template<class T, class R, class... U>
struct get_null_vtable_entry<vtable_adapter<constructible<T(const T&)>, R(U...)> >
{
    typedef null_construct<void(U...)> type;
};

}

#else

#define BOOST_PP_FILENAME_1 <boost/type_erasure/constructible.hpp>
#define BOOST_PP_ITERATION_LIMITS (0, BOOST_TYPE_ERASURE_MAX_ARITY)
#include BOOST_PP_ITERATE()

#endif

}
}

#endif

#else

#define N BOOST_PP_ITERATION()

#define BOOST_TYPE_ERASURE_ARG_DECL(z, n, data)     \
    typename ::boost::type_erasure::as_param<          \
        Base,                                       \
        BOOST_PP_CAT(T, n)                          \
    >::type

#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
#define BOOST_TYPE_ERASURE_FORWARD_I(z, n, data) ::std::forward<BOOST_PP_CAT(T, n)>(BOOST_PP_CAT(arg, n))
#define BOOST_TYPE_ERASURE_FORWARD(n) BOOST_PP_ENUM(n, BOOST_TYPE_ERASURE_FORWARD_I, ~)
#else
#define BOOST_TYPE_ERASURE_FORWARD(n) BOOST_PP_ENUM_PARAMS(n, arg)
#endif

template<class R BOOST_PP_ENUM_TRAILING_PARAMS(N, class T)>
struct constructible<R(BOOST_PP_ENUM_PARAMS(N, T))>
{
    static ::boost::type_erasure::detail::storage
    apply(BOOST_PP_ENUM_BINARY_PARAMS(N, T, arg))
    {
        ::boost::type_erasure::detail::storage result;
        result.data = new R(BOOST_TYPE_ERASURE_FORWARD(N));
        return result;
    }
};

template<class Base BOOST_PP_ENUM_TRAILING_PARAMS(N, class T), class Tag>
struct concept_interface<
    ::boost::type_erasure::constructible<Tag(BOOST_PP_ENUM_PARAMS(N, T))>,
    Base,
    Tag
> : Base
{
    using Base::_boost_type_erasure_deduce_constructor;
    ::boost::type_erasure::constructible<Tag(BOOST_PP_ENUM_PARAMS(N, T))>*
    _boost_type_erasure_deduce_constructor(
        BOOST_PP_ENUM(N, BOOST_TYPE_ERASURE_ARG_DECL, ~)) const
    {
        return 0;
    }
};

namespace detail {

template<BOOST_PP_ENUM_PARAMS(N, class T)>
struct null_construct<void(BOOST_PP_ENUM_PARAMS(N, T))>
{
    static ::boost::type_erasure::detail::storage
    value(BOOST_PP_ENUM_PARAMS(N, T))
    {
        ::boost::type_erasure::detail::storage result;
        result.data = 0;
        return result;
    }
};

template<class T, class R BOOST_PP_ENUM_TRAILING_PARAMS(N, class T)>
struct get_null_vtable_entry<vtable_adapter<constructible<T(const T&)>, R(BOOST_PP_ENUM_PARAMS(N, T))> >
{
    typedef null_construct<void(BOOST_PP_ENUM_PARAMS(N, T))> type;
};

}

#undef BOOST_TYPE_ERASURE_FORWARD
#undef BOOST_TYPE_ERASURE_FORWARD_I

#undef BOOST_TYPE_ERASURE_ARG_DECL
#undef N

#endif

cmd: