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// sol3
// The MIT License (MIT)
// Copyright (c) 2013-2019 Rapptz, ThePhD and contributors
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifndef SOL_IN_PLACE_HPP
#define SOL_IN_PLACE_HPP
#include <cstddef>
#include <utility>
namespace sol {
#if defined(SOL_CXX17_FEATURES) && SOL_CXX17_FEATURES
using in_place_t = std::in_place_t;
constexpr std::in_place_t in_place{};
constexpr std::in_place_t in_place_of{};
template <typename T>
using in_place_type_t = std::in_place_type_t<T>;
template <typename T>
constexpr std::in_place_type_t<T> in_place_type{};
template <size_t I>
using in_place_index_t = std::in_place_index_t<I>;
template <size_t I>
constexpr in_place_index_t<I> in_place_index{};
#else
namespace detail {
struct in_place_of_tag {};
template <std::size_t I>
struct in_place_of_i {};
template <typename T>
struct in_place_of_t {};
} // namespace detail
struct in_place_tag {
constexpr in_place_tag() = default;
};
constexpr inline in_place_tag in_place(detail::in_place_of_tag) {
return in_place_tag();
}
template <typename T>
constexpr inline in_place_tag in_place(detail::in_place_of_t<T>) {
return in_place_tag();
}
template <std::size_t I>
constexpr inline in_place_tag in_place(detail::in_place_of_i<I>) {
return in_place_tag();
}
constexpr inline in_place_tag in_place_of(detail::in_place_of_tag) {
return in_place_tag();
}
template <typename T>
constexpr inline in_place_tag in_place_type(detail::in_place_of_t<T>) {
return in_place_tag();
}
template <std::size_t I>
constexpr inline in_place_tag in_place_index(detail::in_place_of_i<I>) {
return in_place_tag();
}
using in_place_t = in_place_tag (&)(detail::in_place_of_tag);
template <typename T>
using in_place_type_t = in_place_tag (&)(detail::in_place_of_t<T>);
template <std::size_t I>
using in_place_index_t = in_place_tag (&)(detail::in_place_of_i<I>);
#endif
} // namespace sol
#endif // SOL_IN_PLACE_HPP
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