19 General utilities library [utilities]

19.7 Variants [variant]

19.7.3 Class template variant [variant.variant]

19.7.3.2 Destructor [variant.dtor]

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~variant();
1
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Effects: If valueless_­by_­exception() is false, destroys the currently contained value.
2
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Remarks: If is_­trivially_­destructible_­v<T> is true for all T, then this destructor is trivial.