[#bsl-unordered_map-02b-begin-0b]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_map-02b.adoc[unordered_map]::begin
:relfileprefix: ../../
:mrdocs:

Return a local iterator providing modifiable access to the first `value_type` object in the sequence of `value_type` objects of the bucket having the specified `index` in the array of buckets maintained by this unordered map, or the `end(index)` iterator if the bucket is empty. The behavior is undefined unless 'index < bucket_count()'.

== Synopsis

Declared in `<bslstl_unorderedmap.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/unordered_map-02b/local_iterator.adoc[local_iterator]
begin(xref:bsl/unordered_map-02b/size_type.adoc[size_type] index);
----


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