[#bsl-unordered_map-02b-2constructor-05]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_map-02b.adoc[unordered_map]::unordered_map
:relfileprefix: ../../
:mrdocs:

Create an unordered map having the same value as the specified `original` object by moving (in constant time) the contents of `original` to the new unordered map. Use a copy of `original.hash_function()` to generate hash values for the keys contained in this unordered map. Use a copy of `original.key_eq()` to verify that two keys are equivalent. The allocator associated with `original` is propagated for use in the newly‐created unordered map. `original` is left in a valid but unspecified state.

== Synopsis

Declared in `<bslstl_unorderedmap.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
unordered_map(xref:BloombergLP/bslmf/MovableRef.adoc[BloombergLP::bslmf::MovableRef<unordered_map>] original);
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