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38 lines
1 KiB
C++
38 lines
1 KiB
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_UUID_NIL_GENERATOR_HPP
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#define SPROUT_UUID_NIL_GENERATOR_HPP
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#include <sprout/config.hpp>
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#include <sprout/uuid/uuid.hpp>
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namespace sprout {
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namespace uuids {
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//
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// nil_generator
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//
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class nil_generator {
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public:
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typedef sprout::uuids::uuid result_type;
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public:
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SPROUT_CONSTEXPR result_type operator()() const {
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return result_type{{0}};
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}
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};
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//
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// nil_uuid
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//
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inline SPROUT_CONSTEXPR sprout::uuids::uuid
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nil_uuid() {
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return sprout::uuids::nil_generator()();
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}
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} // namespace uuids
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} // namespace sprout
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#endif // #ifndef SPROUT_UUID_NIL_GENERATOR_HPP
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