mirror of
https://github.com/ThePhD/sol2.git
synced 2024-03-22 13:10:44 +08:00
50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
// The MIT License (MIT)
|
|
|
|
// Copyright (c) 2013-2016 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_OPTIONAL_HPP
|
|
#define SOL_OPTIONAL_HPP
|
|
|
|
#if __cplusplus > 201402L
|
|
#include <optional>
|
|
#elif defined(SOL_USE_BOOST)
|
|
#include <boost/optional.hpp>
|
|
#else
|
|
#include "../Optional/optional.hpp"
|
|
#endif // C++ 14
|
|
|
|
namespace sol {
|
|
|
|
#if __cplusplus > 201402L
|
|
template <typename T>
|
|
using optional = sol::optional<T>;
|
|
using nullopt_t = std::nullopt_t;
|
|
constexpr nullopt_t nullopt = std::nullopt;
|
|
#elif defined(SOL_USE_BOOST)
|
|
template <typename T>
|
|
using optional = boost::optional<T>;
|
|
using nullopt_t = boost::none_t;
|
|
const nullopt_t nullopt = boost::none;
|
|
#else
|
|
#endif // C++ 14
|
|
}
|
|
|
|
#endif // SOL_OPTIONAL_HPP
|