Create an unordered set having the same value as the specified original object that uses the specified basicAllocator to supply memory. Use a copy of original.hash_function() to generate hash values for the keys contained in this set. Use a copy of original.key_eq() to verify that two keys are equivalent. This method requires that the (template parameter) type KEY be copy-insertable into this set (see {Requirements on KEY}). Note that a bslma::Allocator * can be supplied for basicAllocator if the (template parameter) type ALLOCATOR is bsl::allocator (the default).
Declared in <bslstl_unorderedset.h>
unordered_set(
unordered_set<ManagedAttribute, AttributeHash> const& original,
type_identity<allocator<ManagedAttribute>>::type const& basicAllocator);