cppdraft_translate/cppdraft/optional/mod.md

[optional.mod]

22 General utilities library [utilities]

22.5 Optional objects [optional]

22.5.3 Class template optional [optional.optional]

22.5.3.9 Modifiers [optional.mod]

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constexpr void reset() noexcept;

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Effects: If *this contains a value, calls val->T​::​~T() to destroy the contained value; otherwise no effect.

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Postconditions: *this does not contain a value.