[#bsl-unordered_multimap-0b0-rehash]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_multimap-0b0.adoc[unordered_multimap]::rehash
:relfileprefix: ../../
:mrdocs:

Change the size of the array of buckets maintained by this container to the specified `numBuckets`, and redistribute all the contained elements into the new sequence of buckets, according to their hash values. Note that this operation has no effect if rehashing the elements into `numBuckets` would cause this unordered multimap to exceed its `max_load_factor`.

== Synopsis

Declared in `<bslstl_unorderedmultimap.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
rehash(xref:bsl/unordered_multimap-0b0/size_type.adoc[size_type] numBuckets);
----


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