[#BloombergLP-bdlt-PackedCalendar-length]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/PackedCalendar.adoc[PackedCalendar]::length
:relfileprefix: ../../../
:mrdocs:

Return the number of days in the valid range of this calendar, which is defined to be 0 if this calendar is empty, and `lastDate() ‐ firstDate() + 1` otherwise.

== Synopsis

Declared in `<bdlt_packedcalendar.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
length() const;
----


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