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// Copyright David Abrahams 2002.
// 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 INDIRECT_TRAITS_DWA2002131_HPP
# define INDIRECT_TRAITS_DWA2002131_HPP
# include <cutl/details/boost/type_traits/is_function.hpp>
# include <cutl/details/boost/type_traits/is_reference.hpp>
# include <cutl/details/boost/type_traits/is_pointer.hpp>
# include <cutl/details/boost/type_traits/is_class.hpp>
# include <cutl/details/boost/type_traits/is_const.hpp>
# include <cutl/details/boost/type_traits/is_volatile.hpp>
# include <cutl/details/boost/type_traits/is_member_function_pointer.hpp>
# include <cutl/details/boost/type_traits/is_member_pointer.hpp>
# include <cutl/details/boost/type_traits/remove_cv.hpp>
# include <cutl/details/boost/type_traits/remove_reference.hpp>
# include <cutl/details/boost/type_traits/remove_pointer.hpp>
# include <cutl/details/boost/type_traits/detail/ice_and.hpp>
# include <cutl/details/boost/detail/workaround.hpp>
# include <cutl/details/boost/mpl/eval_if.hpp>
# include <cutl/details/boost/mpl/if.hpp>
# include <cutl/details/boost/mpl/bool.hpp>
# include <cutl/details/boost/mpl/and.hpp>
# include <cutl/details/boost/mpl/not.hpp>
# include <cutl/details/boost/mpl/aux_/lambda_support.hpp>
# ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
# include <cutl/details/boost/detail/is_function_ref_tester.hpp>
# endif
namespace cutl_details_boost { namespace detail {
namespace indirect_traits {
# ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
template <class T>
struct is_reference_to_const : mpl::false_
{
};
template <class T>
struct is_reference_to_const<T const&> : mpl::true_
{
};
# if defined(BOOST_MSVC) && _MSC_FULL_VER <= 13102140 // vc7.01 alpha workaround
template<class T>
struct is_reference_to_const<T const volatile&> : mpl::true_
{
};
# endif
template <class T>
struct is_reference_to_function : mpl::false_
{
};
template <class T>
struct is_reference_to_function<T&> : is_function<T>
{
};
template <class T>
struct is_pointer_to_function : mpl::false_
{
};
// There's no such thing as a pointer-to-cv-function, so we don't need
// specializations for those
template <class T>
struct is_pointer_to_function<T*> : is_function<T>
{
};
template <class T>
struct is_reference_to_member_function_pointer_impl : mpl::false_
{
};
template <class T>
struct is_reference_to_member_function_pointer_impl<T&>
: is_member_function_pointer<typename remove_cv<T>::type>
{
};
template <class T>
struct is_reference_to_member_function_pointer
: is_reference_to_member_function_pointer_impl<T>
{
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_member_function_pointer,(T))
};
template <class T>
struct is_reference_to_function_pointer_aux
: mpl::and_<
is_reference<T>
, is_pointer_to_function<
typename remove_cv<
typename remove_reference<T>::type
>::type
>
>
{
// There's no such thing as a pointer-to-cv-function, so we don't need specializations for those
};
template <class T>
struct is_reference_to_function_pointer
: mpl::if_<
is_reference_to_function<T>
, mpl::false_
, is_reference_to_function_pointer_aux<T>
>::type
{
};
template <class T>
struct is_reference_to_non_const
: mpl::and_<
is_reference<T>
, mpl::not_<
is_reference_to_const<T>
>
>
{
};
template <class T>
struct is_reference_to_volatile : mpl::false_
{
};
template <class T>
struct is_reference_to_volatile<T volatile&> : mpl::true_
{
};
# if defined(BOOST_MSVC) && _MSC_FULL_VER <= 13102140 // vc7.01 alpha workaround
template <class T>
struct is_reference_to_volatile<T const volatile&> : mpl::true_
{
};
# endif
template <class T>
struct is_reference_to_pointer : mpl::false_
{
};
template <class T>
struct is_reference_to_pointer<T*&> : mpl::true_
{
};
template <class T>
struct is_reference_to_pointer<T* const&> : mpl::true_
{
};
template <class T>
struct is_reference_to_pointer<T* volatile&> : mpl::true_
{
};
template <class T>
struct is_reference_to_pointer<T* const volatile&> : mpl::true_
{
};
template <class T>
struct is_reference_to_class
: mpl::and_<
is_reference<T>
, is_class<
typename remove_cv<
typename remove_reference<T>::type
>::type
>
>
{
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_class,(T))
};
template <class T>
struct is_pointer_to_class
: mpl::and_<
is_pointer<T>
, is_class<
typename remove_cv<
typename remove_pointer<T>::type
>::type
>
>
{
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_pointer_to_class,(T))
};
# else
using namespace cutl_details_boost::detail::is_function_ref_tester_;
typedef char (&inner_yes_type)[3];
typedef char (&inner_no_type)[2];
typedef char (&outer_no_type)[1];
template <typename V>
struct is_const_help
{
typedef typename mpl::if_<
is_const<V>
, inner_yes_type
, inner_no_type
>::type type;
};
template <typename V>
struct is_volatile_help
{
typedef typename mpl::if_<
is_volatile<V>
, inner_yes_type
, inner_no_type
>::type type;
};
template <typename V>
struct is_pointer_help
{
typedef typename mpl::if_<
is_pointer<V>
, inner_yes_type
, inner_no_type
>::type type;
};
template <typename V>
struct is_class_help
{
typedef typename mpl::if_<
is_class<V>
, inner_yes_type
, inner_no_type
>::type type;
};
template <class T>
struct is_reference_to_function_aux
{
static T t;
BOOST_STATIC_CONSTANT(
bool, value = sizeof(detail::is_function_ref_tester(t,0)) == sizeof(::cutl_details_boost::type_traits::yes_type));
typedef mpl::bool_<value> type;
};
template <class T>
struct is_reference_to_function
: mpl::if_<is_reference<T>, is_reference_to_function_aux<T>, mpl::bool_<false> >::type
{
};
template <class T>
struct is_pointer_to_function_aux
{
static T t;
BOOST_STATIC_CONSTANT(
bool, value
= sizeof(::cutl_details_boost::type_traits::is_function_ptr_tester(t)) == sizeof(::cutl_details_boost::type_traits::yes_type));
typedef mpl::bool_<value> type;
};
template <class T>
struct is_pointer_to_function
: mpl::if_<is_pointer<T>, is_pointer_to_function_aux<T>, mpl::bool_<false> >::type
{
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_pointer_to_function,(T))
};
struct false_helper1
{
template <class T>
struct apply : mpl::false_
{
};
};
template <typename V>
typename is_const_help<V>::type reference_to_const_helper(V&);
outer_no_type
reference_to_const_helper(...);
struct true_helper1
{
template <class T>
struct apply
{
static T t;
BOOST_STATIC_CONSTANT(
bool, value
= sizeof(reference_to_const_helper(t)) == sizeof(inner_yes_type));
typedef mpl::bool_<value> type;
};
};
template <bool ref = true>
struct is_reference_to_const_helper1 : true_helper1
{
};
template <>
struct is_reference_to_const_helper1<false> : false_helper1
{
};
template <class T>
struct is_reference_to_const
: is_reference_to_const_helper1<is_reference<T>::value>::template apply<T>
{
};
template <bool ref = true>
struct is_reference_to_non_const_helper1
{
template <class T>
struct apply
{
static T t;
BOOST_STATIC_CONSTANT(
bool, value
= sizeof(reference_to_const_helper(t)) == sizeof(inner_no_type));
typedef mpl::bool_<value> type;
};
};
template <>
struct is_reference_to_non_const_helper1<false> : false_helper1
{
};
template <class T>
struct is_reference_to_non_const
: is_reference_to_non_const_helper1<is_reference<T>::value>::template apply<T>
{
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_non_const,(T))
};
template <typename V>
typename is_volatile_help<V>::type reference_to_volatile_helper(V&);
outer_no_type
reference_to_volatile_helper(...);
template <bool ref = true>
struct is_reference_to_volatile_helper1
{
template <class T>
struct apply
{
static T t;
BOOST_STATIC_CONSTANT(
bool, value
= sizeof(reference_to_volatile_helper(t)) == sizeof(inner_yes_type));
typedef mpl::bool_<value> type;
};
};
template <>
struct is_reference_to_volatile_helper1<false> : false_helper1
{
};
template <class T>
struct is_reference_to_volatile
: is_reference_to_volatile_helper1<is_reference<T>::value>::template apply<T>
{
};
template <typename V>
typename is_pointer_help<V>::type reference_to_pointer_helper(V&);
outer_no_type reference_to_pointer_helper(...);
template <class T>
struct reference_to_pointer_impl
{
static T t;
BOOST_STATIC_CONSTANT(
bool, value
= (sizeof((reference_to_pointer_helper)(t)) == sizeof(inner_yes_type))
);
typedef mpl::bool_<value> type;
};
template <class T>
struct is_reference_to_pointer
: mpl::eval_if<is_reference<T>, reference_to_pointer_impl<T>, mpl::false_>::type
{
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_pointer,(T))
};
template <class T>
struct is_reference_to_function_pointer
: mpl::eval_if<is_reference<T>, is_pointer_to_function_aux<T>, mpl::false_>::type
{
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_function_pointer,(T))
};
template <class T>
struct is_member_function_pointer_help
: mpl::if_<is_member_function_pointer<T>, inner_yes_type, inner_no_type>
{};
template <typename V>
typename is_member_function_pointer_help<V>::type member_function_pointer_helper(V&);
outer_no_type member_function_pointer_helper(...);
template <class T>
struct is_pointer_to_member_function_aux
{
static T t;
BOOST_STATIC_CONSTANT(
bool, value
= sizeof((member_function_pointer_helper)(t)) == sizeof(inner_yes_type));
typedef mpl::bool_<value> type;
};
template <class T>
struct is_reference_to_member_function_pointer
: mpl::if_<
is_reference<T>
, is_pointer_to_member_function_aux<T>
, mpl::bool_<false>
>::type
{
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_member_function_pointer,(T))
};
template <typename V>
typename is_class_help<V>::type reference_to_class_helper(V const volatile&);
outer_no_type reference_to_class_helper(...);
template <class T>
struct is_reference_to_class
{
static T t;
BOOST_STATIC_CONSTANT(
bool, value
= (is_reference<T>::value
& (sizeof(reference_to_class_helper(t)) == sizeof(inner_yes_type)))
);
typedef mpl::bool_<value> type;
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_class,(T))
};
template <typename V>
typename is_class_help<V>::type pointer_to_class_helper(V const volatile*);
outer_no_type pointer_to_class_helper(...);
template <class T>
struct is_pointer_to_class
{
static T t;
BOOST_STATIC_CONSTANT(
bool, value
= (is_pointer<T>::value
&& sizeof(pointer_to_class_helper(t)) == sizeof(inner_yes_type))
);
typedef mpl::bool_<value> type;
};
# endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
}
using namespace indirect_traits;
}} // namespace cutl_details_boost::python::detail
#endif // INDIRECT_TRAITS_DWA2002131_HPP
|
