sol2/sol/optional.hpp

// 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
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#ifndef SOL_OPTIONAL_HPP
#define SOL_OPTIONAL_HPP

#include "in_place.hpp"
#if defined(SOL_USE_BOOST)
#include <boost/optional.hpp>
#else
#include "../Optional/optional.hpp"
#endif // Boost vs. Better optional

namespace sol {

#if defined(SOL_USE_BOOST)
	template <typename T>
	using optional = boost::optional<T>;
	using nullopt_t = boost::none_t;
	const nullopt_t nullopt = boost::none;
#endif // Boost vs. Better optional

} // sol

#endif // SOL_OPTIONAL_HPP