19 General utilities library [utilities]

Effects: Equivalent to v.swap(w).

Remarks: This function shall not participate in overload resolution unless is_­move_­constructible_­v<${\text{T}}_i$> && is_­swappable_­v<${\text{T}}_i$> is true for all i.

The expression inside noexcept is equivalent to noexcept(v.swap(w)).