[#bsl-unordered_multimap-0b0-2constructor-09d]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_multimap-0b0.adoc[unordered_multimap]::unordered_multimap
:relfileprefix: ../../
:mrdocs:

Create an empty unordered multimap with the specified options.

== Synopsis

Declared in `<bslstl_unorderedmultimap.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
unordered_multimap(
    xref:bsl/unordered_multimap-0b0/size_type.adoc[size_type] initialNumBuckets,
    HASH const& hashFunction = HASH(),
    EQUAL const& keyEqual = EQUAL(),
    ALLOCATOR const& basicAllocator = ALLOCATOR());
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *initialNumBuckets*
| minimum initial number of buckets
| *hashFunction*
| hash function for keys
| *keyEqual*
| key‐equality functor
| *basicAllocator*
| allocator used to supply memory
|===


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