[#bsl-unordered_map-02b-2constructor-03]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_map-02b.adoc[unordered_map]::unordered_map
:relfileprefix: ../../
:mrdocs:

Create an unordered map having the same value, hasher, key‐equality comparator, and `max_load_factor` as the specified `original`. Use the allocator returned by 'bsl::allocator_traits<ALLOCATOR>:: select_on_container_copy_construction(original.get_allocator())' to supply memory. If the `ALLOCATOR` type is `bsl::allocator` (the default), the currently installed default allocator is used to supply memory.

== Synopsis

Declared in `<bslstl_unorderedmap.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
unordered_map(xref:bsl/unordered_map-02b.adoc[unordered_map] const& original);
----


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