How would a std::optionalstd::nullopt_t operate?

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How would a std::optionalstd::nullopt_t operate?
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(stackoverflow.com/users/1019990/joshua-green)Joshua Green
(stackoverflow.com/users/734069/nicol-bolas)Nicol Bolas
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c++17 c++ stdoptional




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c++17
c++
stdoptional