[#BloombergLP-bdlt-PackedCalendar_HolidayCodeConstIterator-operator_inc]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/PackedCalendar_HolidayCodeConstIterator.adoc[PackedCalendar_HolidayCodeConstIterator]::operator++
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Advance this iterator to refer to the next holiday code for the associated date in the associated calendar, and return a reference providing modifiable access to this object. The behavior is undefined unless, on entry, this iterator references a valid holiday code.

== Synopsis

Declared in `<bdlt_packedcalendar.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlt/PackedCalendar_HolidayCodeConstIterator.adoc[PackedCalendar_HolidayCodeConstIterator]&
operator++();
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