47 lines
1.0 KiB
C++
47 lines
1.0 KiB
C++
#ifndef BOOST_DESCRIBE_ENUMERATORS_HPP_INCLUDED
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#define BOOST_DESCRIBE_ENUMERATORS_HPP_INCLUDED
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// Copyright 2020, 2021 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/describe/detail/void_t.hpp>
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#include <boost/describe/detail/config.hpp>
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#if defined(BOOST_DESCRIBE_CXX11)
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#include <type_traits>
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namespace boost
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{
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namespace describe
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{
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// describe_enumerators<E>
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template<class E> using describe_enumerators = decltype( boost_enum_descriptor_fn( static_cast<E**>(0) ) );
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// has_describe_enumerators<E>
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namespace detail
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{
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template<class E, class En = void> struct has_describe_enumerators: std::false_type
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{
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};
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template<class E> struct has_describe_enumerators<E, void_t<describe_enumerators<E>>>: std::true_type
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{
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};
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} // namespace detail
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template<class E> using has_describe_enumerators = detail::has_describe_enumerators<E>;
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} // namespace describe
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} // namespace boost
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#endif // defined(BOOST_DESCRIBE_CXX11)
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#endif // #ifndef BOOST_DESCRIBE_ENUMERATORS_HPP_INCLUDED
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