63e88f80
 Hu Chunming
提交三方库
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#ifndef BOOST_DESCRIBE_DETAIL_BASES_HPP_INCLUDED
#define BOOST_DESCRIBE_DETAIL_BASES_HPP_INCLUDED
// Copyright 2020 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/describe/detail/compute_base_modifiers.hpp>
#include <boost/describe/detail/pp_for_each.hpp>
#include <boost/describe/detail/list.hpp>
#include <type_traits>
namespace boost
{
namespace describe
{
namespace detail
{
// base_descriptor
template<class C, class B> struct base_descriptor
{
static_assert( std::is_base_of<B, C>::value, "A type listed as a base is not one" );
using type = B;
static constexpr unsigned modifiers = compute_base_modifiers<C, B>();
};
template<class C, class B> constexpr unsigned base_descriptor<C, B>::modifiers;
template<class... T> auto base_descriptor_fn_impl( int, T... )
{
return list<T...>();
}
#define BOOST_DESCRIBE_BASE_IMPL(C, B) , boost::describe::detail::base_descriptor<C, B>()
#if defined(_MSC_VER) && !defined(__clang__)
#define BOOST_DESCRIBE_BASES(C, ...) inline auto boost_base_descriptor_fn( C** ) \
{ return boost::describe::detail::base_descriptor_fn_impl( 0 BOOST_DESCRIBE_PP_FOR_EACH(BOOST_DESCRIBE_BASE_IMPL, C, __VA_ARGS__) ); }
#else
#define BOOST_DESCRIBE_BASES(C, ...) inline auto boost_base_descriptor_fn( C** ) \
{ return boost::describe::detail::base_descriptor_fn_impl( 0 BOOST_DESCRIBE_PP_FOR_EACH(BOOST_DESCRIBE_BASE_IMPL, C, ##__VA_ARGS__) ); }
#endif
} // namespace detail
} // namespace describe
} // namespace boost
#endif // #ifndef BOOST_DESCRIBE_DETAIL_BASES_HPP_INCLUDED
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