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// Copyright David Abrahams 2002.
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef INDIRECT_TRAITS_DWA2002131_HPP
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# define INDIRECT_TRAITS_DWA2002131_HPP
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# include <boost/type_traits/is_function.hpp>
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# include <boost/type_traits/is_reference.hpp>
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# include <boost/type_traits/is_pointer.hpp>
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# include <boost/type_traits/is_class.hpp>
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# include <boost/type_traits/is_const.hpp>
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# include <boost/type_traits/is_volatile.hpp>
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# include <boost/type_traits/is_member_function_pointer.hpp>
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# include <boost/type_traits/is_member_pointer.hpp>
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# include <boost/type_traits/remove_cv.hpp>
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# include <boost/type_traits/remove_reference.hpp>
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# include <boost/type_traits/remove_pointer.hpp>
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# include <boost/type_traits/detail/ice_and.hpp>
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# include <boost/detail/workaround.hpp>
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# include <boost/mpl/eval_if.hpp>
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# include <boost/mpl/if.hpp>
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# include <boost/mpl/bool.hpp>
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# include <boost/mpl/and.hpp>
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# include <boost/mpl/not.hpp>
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# include <boost/mpl/aux_/lambda_support.hpp>
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# ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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# include <boost/detail/is_function_ref_tester.hpp>
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# endif
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namespace boost { namespace detail {
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namespace indirect_traits {
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# ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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template <class T>
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struct is_reference_to_const : mpl::false_
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{
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};
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template <class T>
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struct is_reference_to_const<T const&> : mpl::true_
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{
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};
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# if defined(BOOST_MSVC) && _MSC_FULL_VER <= 13102140 // vc7.01 alpha workaround
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template<class T>
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struct is_reference_to_const<T const volatile&> : mpl::true_
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{
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};
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# endif
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template <class T>
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struct is_reference_to_function : mpl::false_
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{
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};
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template <class T>
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struct is_reference_to_function<T&> : is_function<T>
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{
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};
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template <class T>
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struct is_pointer_to_function : mpl::false_
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{
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};
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// There's no such thing as a pointer-to-cv-function, so we don't need
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// specializations for those
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template <class T>
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struct is_pointer_to_function<T*> : is_function<T>
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{
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};
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template <class T>
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struct is_reference_to_member_function_pointer_impl : mpl::false_
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{
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};
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template <class T>
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struct is_reference_to_member_function_pointer_impl<T&>
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: is_member_function_pointer<typename remove_cv<T>::type>
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{
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};
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template <class T>
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struct is_reference_to_member_function_pointer
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: is_reference_to_member_function_pointer_impl<T>
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{
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BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_member_function_pointer,(T))
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};
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template <class T>
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struct is_reference_to_function_pointer_aux
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: mpl::and_<
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is_reference<T>
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, is_pointer_to_function<
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typename remove_cv<
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typename remove_reference<T>::type
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>::type
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>
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>
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{
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// There's no such thing as a pointer-to-cv-function, so we don't need specializations for those
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};
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template <class T>
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struct is_reference_to_function_pointer
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: mpl::if_<
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is_reference_to_function<T>
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, mpl::false_
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, is_reference_to_function_pointer_aux<T>
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>::type
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{
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};
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template <class T>
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struct is_reference_to_non_const
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: mpl::and_<
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is_reference<T>
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, mpl::not_<
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is_reference_to_const<T>
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>
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>
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{
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};
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template <class T>
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struct is_reference_to_volatile : mpl::false_
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{
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};
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template <class T>
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struct is_reference_to_volatile<T volatile&> : mpl::true_
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{
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};
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# if defined(BOOST_MSVC) && _MSC_FULL_VER <= 13102140 // vc7.01 alpha workaround
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template <class T>
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struct is_reference_to_volatile<T const volatile&> : mpl::true_
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{
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};
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# endif
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template <class T>
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struct is_reference_to_pointer : mpl::false_
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{
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};
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template <class T>
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struct is_reference_to_pointer<T*&> : mpl::true_
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{
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};
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template <class T>
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struct is_reference_to_pointer<T* const&> : mpl::true_
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{
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};
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template <class T>
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struct is_reference_to_pointer<T* volatile&> : mpl::true_
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{
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};
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template <class T>
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struct is_reference_to_pointer<T* const volatile&> : mpl::true_
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{
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};
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template <class T>
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struct is_reference_to_class
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: mpl::and_<
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is_reference<T>
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, is_class<
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typename remove_cv<
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typename remove_reference<T>::type
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>::type
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>
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>
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{
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BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_class,(T))
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};
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template <class T>
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struct is_pointer_to_class
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: mpl::and_<
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is_pointer<T>
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, is_class<
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typename remove_cv<
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typename remove_pointer<T>::type
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>::type
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>
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>
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{
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BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_pointer_to_class,(T))
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};
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# else
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using namespace boost::detail::is_function_ref_tester_;
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typedef char (&inner_yes_type)[3];
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typedef char (&inner_no_type)[2];
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typedef char (&outer_no_type)[1];
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template <typename V>
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struct is_const_help
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{
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typedef typename mpl::if_<
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is_const<V>
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, inner_yes_type
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, inner_no_type
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>::type type;
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};
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template <typename V>
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struct is_volatile_help
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{
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typedef typename mpl::if_<
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is_volatile<V>
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, inner_yes_type
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, inner_no_type
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>::type type;
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};
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template <typename V>
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struct is_pointer_help
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{
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typedef typename mpl::if_<
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is_pointer<V>
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, inner_yes_type
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, inner_no_type
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>::type type;
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};
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template <typename V>
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struct is_class_help
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{
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typedef typename mpl::if_<
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is_class<V>
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, inner_yes_type
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, inner_no_type
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>::type type;
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};
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template <class T>
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struct is_reference_to_function_aux
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{
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static T t;
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BOOST_STATIC_CONSTANT(
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bool, value = sizeof(detail::is_function_ref_tester(t,0)) == sizeof(::boost::type_traits::yes_type));
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typedef mpl::bool_<value> type;
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};
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template <class T>
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struct is_reference_to_function
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: mpl::if_<is_reference<T>, is_reference_to_function_aux<T>, mpl::bool_<false> >::type
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{
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};
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template <class T>
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struct is_pointer_to_function_aux
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{
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static T t;
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BOOST_STATIC_CONSTANT(
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bool, value
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= sizeof(::boost::type_traits::is_function_ptr_tester(t)) == sizeof(::boost::type_traits::yes_type));
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typedef mpl::bool_<value> type;
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};
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template <class T>
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struct is_pointer_to_function
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: mpl::if_<is_pointer<T>, is_pointer_to_function_aux<T>, mpl::bool_<false> >::type
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{
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BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_pointer_to_function,(T))
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};
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struct false_helper1
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{
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template <class T>
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struct apply : mpl::false_
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{
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};
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};
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template <typename V>
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typename is_const_help<V>::type reference_to_const_helper(V&);
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outer_no_type
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reference_to_const_helper(...);
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struct true_helper1
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{
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template <class T>
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struct apply
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{
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static T t;
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BOOST_STATIC_CONSTANT(
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bool, value
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= sizeof(reference_to_const_helper(t)) == sizeof(inner_yes_type));
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typedef mpl::bool_<value> type;
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};
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};
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template <bool ref = true>
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struct is_reference_to_const_helper1 : true_helper1
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{
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};
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template <>
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struct is_reference_to_const_helper1<false> : false_helper1
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|
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{
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|
316 |
};
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|
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|
318 |
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|
319 |
template <class T>
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|
320 |
struct is_reference_to_const
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|
321 |
: is_reference_to_const_helper1<is_reference<T>::value>::template apply<T>
|
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|
322 |
{
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|
323 |
};
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|
324 |
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|
325 |
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|
326 |
template <bool ref = true>
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|
327 |
struct is_reference_to_non_const_helper1
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|
328 |
{
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|
329 |
template <class T>
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|
330 |
struct apply
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|
331 |
{
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|
332 |
static T t;
|
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|
333 |
BOOST_STATIC_CONSTANT(
|
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|
334 |
bool, value
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|
335 |
= sizeof(reference_to_const_helper(t)) == sizeof(inner_no_type));
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|
336 |
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|
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typedef mpl::bool_<value> type;
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|
338 |
};
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|
339 |
};
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|
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|
341 |
template <>
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|
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struct is_reference_to_non_const_helper1<false> : false_helper1
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|
343 |
{
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|
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};
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|
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|
346 |
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|
347 |
template <class T>
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|
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struct is_reference_to_non_const
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|
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: is_reference_to_non_const_helper1<is_reference<T>::value>::template apply<T>
|
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|
350 |
{
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|
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BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_non_const,(T))
|
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sl@0
|
352 |
};
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|
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|
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|
355 |
template <typename V>
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|
356 |
typename is_volatile_help<V>::type reference_to_volatile_helper(V&);
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|
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outer_no_type
|
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|
358 |
reference_to_volatile_helper(...);
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|
359 |
|
|
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|
360 |
template <bool ref = true>
|
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|
361 |
struct is_reference_to_volatile_helper1
|
|
sl@0
|
362 |
{
|
|
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|
363 |
template <class T>
|
|
sl@0
|
364 |
struct apply
|
|
sl@0
|
365 |
{
|
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sl@0
|
366 |
static T t;
|
|
sl@0
|
367 |
BOOST_STATIC_CONSTANT(
|
|
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|
368 |
bool, value
|
|
sl@0
|
369 |
= sizeof(reference_to_volatile_helper(t)) == sizeof(inner_yes_type));
|
|
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|
370 |
typedef mpl::bool_<value> type;
|
|
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|
371 |
};
|
|
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|
372 |
};
|
|
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|
373 |
|
|
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|
374 |
template <>
|
|
sl@0
|
375 |
struct is_reference_to_volatile_helper1<false> : false_helper1
|
|
sl@0
|
376 |
{
|
|
sl@0
|
377 |
};
|
|
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|
378 |
|
|
sl@0
|
379 |
|
|
sl@0
|
380 |
template <class T>
|
|
sl@0
|
381 |
struct is_reference_to_volatile
|
|
sl@0
|
382 |
: is_reference_to_volatile_helper1<is_reference<T>::value>::template apply<T>
|
|
sl@0
|
383 |
{
|
|
sl@0
|
384 |
};
|
|
sl@0
|
385 |
|
|
sl@0
|
386 |
template <typename V>
|
|
sl@0
|
387 |
typename is_pointer_help<V>::type reference_to_pointer_helper(V&);
|
|
sl@0
|
388 |
outer_no_type reference_to_pointer_helper(...);
|
|
sl@0
|
389 |
|
|
sl@0
|
390 |
template <class T>
|
|
sl@0
|
391 |
struct reference_to_pointer_impl
|
|
sl@0
|
392 |
{
|
|
sl@0
|
393 |
static T t;
|
|
sl@0
|
394 |
BOOST_STATIC_CONSTANT(
|
|
sl@0
|
395 |
bool, value
|
|
sl@0
|
396 |
= (sizeof((reference_to_pointer_helper)(t)) == sizeof(inner_yes_type))
|
|
sl@0
|
397 |
);
|
|
sl@0
|
398 |
|
|
sl@0
|
399 |
typedef mpl::bool_<value> type;
|
|
sl@0
|
400 |
};
|
|
sl@0
|
401 |
|
|
sl@0
|
402 |
template <class T>
|
|
sl@0
|
403 |
struct is_reference_to_pointer
|
|
sl@0
|
404 |
: mpl::eval_if<is_reference<T>, reference_to_pointer_impl<T>, mpl::false_>::type
|
|
sl@0
|
405 |
{
|
|
sl@0
|
406 |
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_pointer,(T))
|
|
sl@0
|
407 |
};
|
|
sl@0
|
408 |
|
|
sl@0
|
409 |
template <class T>
|
|
sl@0
|
410 |
struct is_reference_to_function_pointer
|
|
sl@0
|
411 |
: mpl::eval_if<is_reference<T>, is_pointer_to_function_aux<T>, mpl::false_>::type
|
|
sl@0
|
412 |
{
|
|
sl@0
|
413 |
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_function_pointer,(T))
|
|
sl@0
|
414 |
};
|
|
sl@0
|
415 |
|
|
sl@0
|
416 |
|
|
sl@0
|
417 |
template <class T>
|
|
sl@0
|
418 |
struct is_member_function_pointer_help
|
|
sl@0
|
419 |
: mpl::if_<is_member_function_pointer<T>, inner_yes_type, inner_no_type>
|
|
sl@0
|
420 |
{};
|
|
sl@0
|
421 |
|
|
sl@0
|
422 |
template <typename V>
|
|
sl@0
|
423 |
typename is_member_function_pointer_help<V>::type member_function_pointer_helper(V&);
|
|
sl@0
|
424 |
outer_no_type member_function_pointer_helper(...);
|
|
sl@0
|
425 |
|
|
sl@0
|
426 |
template <class T>
|
|
sl@0
|
427 |
struct is_pointer_to_member_function_aux
|
|
sl@0
|
428 |
{
|
|
sl@0
|
429 |
static T t;
|
|
sl@0
|
430 |
BOOST_STATIC_CONSTANT(
|
|
sl@0
|
431 |
bool, value
|
|
sl@0
|
432 |
= sizeof((member_function_pointer_helper)(t)) == sizeof(inner_yes_type));
|
|
sl@0
|
433 |
typedef mpl::bool_<value> type;
|
|
sl@0
|
434 |
};
|
|
sl@0
|
435 |
|
|
sl@0
|
436 |
template <class T>
|
|
sl@0
|
437 |
struct is_reference_to_member_function_pointer
|
|
sl@0
|
438 |
: mpl::if_<
|
|
sl@0
|
439 |
is_reference<T>
|
|
sl@0
|
440 |
, is_pointer_to_member_function_aux<T>
|
|
sl@0
|
441 |
, mpl::bool_<false>
|
|
sl@0
|
442 |
>::type
|
|
sl@0
|
443 |
{
|
|
sl@0
|
444 |
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_member_function_pointer,(T))
|
|
sl@0
|
445 |
};
|
|
sl@0
|
446 |
|
|
sl@0
|
447 |
template <typename V>
|
|
sl@0
|
448 |
typename is_class_help<V>::type reference_to_class_helper(V const volatile&);
|
|
sl@0
|
449 |
outer_no_type reference_to_class_helper(...);
|
|
sl@0
|
450 |
|
|
sl@0
|
451 |
template <class T>
|
|
sl@0
|
452 |
struct is_reference_to_class
|
|
sl@0
|
453 |
{
|
|
sl@0
|
454 |
static T t;
|
|
sl@0
|
455 |
BOOST_STATIC_CONSTANT(
|
|
sl@0
|
456 |
bool, value
|
|
sl@0
|
457 |
= (is_reference<T>::value
|
|
sl@0
|
458 |
& (sizeof(reference_to_class_helper(t)) == sizeof(inner_yes_type)))
|
|
sl@0
|
459 |
);
|
|
sl@0
|
460 |
typedef mpl::bool_<value> type;
|
|
sl@0
|
461 |
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_class,(T))
|
|
sl@0
|
462 |
};
|
|
sl@0
|
463 |
|
|
sl@0
|
464 |
template <typename V>
|
|
sl@0
|
465 |
typename is_class_help<V>::type pointer_to_class_helper(V const volatile*);
|
|
sl@0
|
466 |
outer_no_type pointer_to_class_helper(...);
|
|
sl@0
|
467 |
|
|
sl@0
|
468 |
template <class T>
|
|
sl@0
|
469 |
struct is_pointer_to_class
|
|
sl@0
|
470 |
{
|
|
sl@0
|
471 |
static T t;
|
|
sl@0
|
472 |
BOOST_STATIC_CONSTANT(
|
|
sl@0
|
473 |
bool, value
|
|
sl@0
|
474 |
= (is_pointer<T>::value
|
|
sl@0
|
475 |
&& sizeof(pointer_to_class_helper(t)) == sizeof(inner_yes_type))
|
|
sl@0
|
476 |
);
|
|
sl@0
|
477 |
typedef mpl::bool_<value> type;
|
|
sl@0
|
478 |
};
|
|
sl@0
|
479 |
# endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
|
|
sl@0
|
480 |
|
|
sl@0
|
481 |
}
|
|
sl@0
|
482 |
|
|
sl@0
|
483 |
using namespace indirect_traits;
|
|
sl@0
|
484 |
|
|
sl@0
|
485 |
}} // namespace boost::python::detail
|
|
sl@0
|
486 |
|
|
sl@0
|
487 |
#endif // INDIRECT_TRAITS_DWA2002131_HPP
|