56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
// Copyright Antony Polukhin, 2021-2024.
|
|
//
|
|
// 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)
|
|
|
|
// Contributed by Ruslan Arutyunyan
|
|
#ifndef BOOST_ANY_ANYS_FWD_HPP
|
|
#define BOOST_ANY_ANYS_FWD_HPP
|
|
|
|
#include <boost/config.hpp>
|
|
#ifdef BOOST_HAS_PRAGMA_ONCE
|
|
# pragma once
|
|
#endif
|
|
|
|
/// \file boost/any/fwd.hpp
|
|
/// \brief Forward declarations of Boost.Any library types.
|
|
|
|
/// @cond
|
|
namespace boost {
|
|
|
|
class any;
|
|
|
|
namespace anys {
|
|
|
|
class unique_any;
|
|
|
|
template<std::size_t OptimizeForSize = sizeof(void*), std::size_t OptimizeForAlignment = alignof(void*)>
|
|
class basic_any;
|
|
|
|
namespace detail {
|
|
|
|
template <class T>
|
|
struct is_basic_any: public std::false_type {};
|
|
|
|
template<std::size_t OptimizeForSize, std::size_t OptimizeForAlignment>
|
|
struct is_basic_any<boost::anys::basic_any<OptimizeForSize, OptimizeForAlignment> > : public std::true_type {};
|
|
|
|
template <class T>
|
|
struct is_some_any: public is_basic_any<T> {};
|
|
|
|
template <>
|
|
struct is_some_any<boost::any>: public std::true_type {};
|
|
|
|
template <>
|
|
struct is_some_any<boost::anys::unique_any>: public std::true_type {};
|
|
|
|
} // namespace detail
|
|
|
|
} // namespace anys
|
|
|
|
} // namespace boost
|
|
/// @endcond
|
|
|
|
#endif // #ifndef BOOST_ANY_ANYS_FWD_HPP
|