26 Containers library [containers]

26.3 Sequence containers [sequences]

26.3.7 Class template array [array]

26.3.7.7 array​::​swap [array.swap]

void swap(array& y) noexcept(is_nothrow_swappable_v<T>);
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Effects: Equivalent to swap_­ranges(begin(), end(), y.begin()).
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[ Note
:
Unlike the swap function for other containers, array​::​swap takes linear time, may exit via an exception, and does not cause iterators to become associated with the other container.
— end note
 ]