bsl::unordered_multimap::unordered_multimap

Create an unordered multimap having the same value as the specified original object. Use a copy of original.hash_function() to generate hash values for the keys contained in this unordered multimap. Use a copy of original.key_eq() to verify that two keys are equivalent. Use the allocator returned by `bsl::allocator_traits<ALLOCATOR>:: select_on_container_copy_construction(original.get_allocator())` to allocate memory. This method requires that the (template parameter) types KEY and VALUE both be copy-insertable into this unordered multimap (see {Requirements on KEY and VALUE}).