26 Containers library [containers]

26.6 Container adaptors [container.adaptors]

26.6.5 Class template priority_­queue [priority.queue]

26.6.5.4 priority_­queue specialized algorithms [priqueue.special]

template <class T, class Container, class Compare> void swap(priority_queue<T, Container, Compare>& x, priority_queue<T, Container, Compare>& y) noexcept(noexcept(x.swap(y)));

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Remarks: This function shall not participate in overload resolution unless is_­swappable_­v<Container> is true and is_­swappable_­v<Compare> is true.

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Effects: As if by x.swap(y).