2014-12-07 21:40:20 +00:00
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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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2019-08-24 13:39:04 +00:00
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# include <boost/type_traits/integral_constant.hpp>
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2014-12-07 21:40:20 +00:00
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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/detail/workaround.hpp>
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# include <boost/detail/select_type.hpp>
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2014-12-07 21:40:20 +00:00
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namespace boost { namespace detail {
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namespace indirect_traits {
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template <class T>
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struct is_reference_to_const : boost::false_type
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2014-12-07 21:40:20 +00:00
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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&> : boost::true_type
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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&> : boost::true_type
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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 : boost::false_type
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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 : boost::false_type
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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 : boost::false_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_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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};
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template <class T>
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struct is_reference_to_function_pointer_aux
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: boost::integral_constant<bool,
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is_reference<T>::value &&
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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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>::value
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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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: boost::detail::if_true<
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is_reference_to_function<T>::value
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>::template then<
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boost::false_type
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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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: boost::integral_constant<bool,
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is_reference<T>::value &&
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!is_reference_to_const<T>::value
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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 : boost::false_type
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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&> : boost::true_type
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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&> : boost::true_type
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{
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};
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# endif
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2014-12-07 21:40:20 +00:00
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template <class T>
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struct is_reference_to_pointer : boost::false_type
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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*&> : boost::true_type
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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&> : boost::true_type
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2014-12-07 21:40:20 +00:00
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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&> : boost::true_type
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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&> : boost::true_type
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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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: boost::integral_constant<bool,
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is_reference<T>::value &&
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is_class<
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2014-12-07 21:40:20 +00:00
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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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>::value
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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_pointer_to_class
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: boost::integral_constant<bool,
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is_pointer<T>::value &&
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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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>::value
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>
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{
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};
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}
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using namespace indirect_traits;
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}} // namespace boost::python::detail
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#endif // INDIRECT_TRAITS_DWA2002131_HPP
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