20 General utilities library [utilities]

20.7 Variants [variant]

20.7.3 Class template variant [variant.variant]

20.7.3.3 Destructor [variant.dtor]

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