[#BloombergLP-bdlc-FlatHashSet-begin]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/FlatHashSet.adoc[FlatHashSet]::begin
:relfileprefix: ../../../
:mrdocs:

Return a `const_iterator` to the first element in the sequence of elements maintained by this set, or the `end` iterator if this set is empty.

== Synopsis

Declared in `<bdlc_flathashset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlc/FlatHashSet/const_iterator.adoc[FlatHashSet<KEY, HASH, EQUAL>::const_iterator]
begin() const;
----


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