[#bsl-unordered_set-0d2d-cbegin-07]
= xref:bsl.adoc[bsl]::xref:bsl/unordered_set-0d2d.adoc[unordered_set]::cbegin
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:mrdocs:

`cbegin` overloads

== Synopses

Declared in `<bslstl_unorderedset.h>`

Return a const iterator to the first element of this set.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/unordered_set-0d2d/const_iterator.adoc[unordered_set<KEY, HASH, EQUAL, ALLOCATOR>::const_iterator]
xref:bsl/unordered_set-0d2d/cbegin-0a.adoc[cbegin]() const noexcept;
----

[.small]#xref:bsl/unordered_set-0d2d/cbegin-0a.adoc[_» more..._]#

Return a local iterator to the first element in the bucket at `index`.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:bsl/unordered_set-0d2d/const_local_iterator.adoc[unordered_set<KEY, HASH, EQUAL, ALLOCATOR>::const_local_iterator]
xref:bsl/unordered_set-0d2d/cbegin-09.adoc[cbegin](xref:bsl/unordered_set-0d2d/size_type.adoc[size_type] index) const;
----

[.small]#xref:bsl/unordered_set-0d2d/cbegin-09.adoc[_» more..._]#

== Return Value

* const iterator to the first element, or `cend()` if empty
* const local iterator to the first element, or `cend(index)` if empty

== Parameters

[cols="1,4"]
|===
| Name| Description
| *index*
| bucket index
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#