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20 General utilities library [utilities]

20.11 Smart pointers [smartptr]

20.11.4 Class template weak_­ptr [util.smartptr.weak]

20.11.4.6 Specialized algorithms [util.smartptr.weak.spec]

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template<class T> void swap(weak_ptr<T>& a, weak_ptr<T>& b) noexcept;
1
#
Effects: Equivalent to a.swap(b).