[#BloombergLP-bdlt-DayOfWeekSet-begin]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/DayOfWeekSet.adoc[DayOfWeekSet]::begin
:relfileprefix: ../../../
:mrdocs:

Return an iterator referencing the first valid element in this set.

== Synopsis

Declared in `<bdlt_dayofweekset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlt/DayOfWeekSet/iterator.adoc[DayOfWeekSet::iterator]
begin() const;
----


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