22 General utilities library [utilities]

22.8 Expected objects [expected]

22.8.6 Class template expected [expected.expected]

22.8.6.3 Destructor [expected.object.dtor]

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constexpr ~expected();
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Effects: If has_value() is true, destroys val, otherwise destroys unex.
2
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Remarks: If is_trivially_destructible_v<T> is true, and is_trivially_destructible_v<E> is true, then this destructor is a trivial destructor.