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25 lines
796 B
C++
25 lines
796 B
C++
/*=============================================================================
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Copyright (c) 2011-2016 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef SPROUT_OPTIONAL_NULLOPT_HPP
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#define SPROUT_OPTIONAL_NULLOPT_HPP
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#include <sprout/config.hpp>
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#include <sprout/none.hpp>
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namespace sprout {
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//
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// nullopt_t
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// nullopt
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//
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typedef sprout::none_t nullopt_t;
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namespace {
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SPROUT_STATIC_CONSTEXPR nullopt_t nullopt{};
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} // anonymous-namespace
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} // namespace sprout
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#endif // #ifndef SPROUT_OPTIONAL_NULLOPT_HPP
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