[#BloombergLP-bdlt-Calendar-addWeekendDaysTransition]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/Calendar.adoc[Calendar]::addWeekendDaysTransition
:relfileprefix: ../../../
:mrdocs:

Add to this calendar a weekend‐days transition on the specified `startDate` having the specified `weekendDays` set. If a weekend‐days transition already exists on `startDate`, replace the set of weekend days of that transition with `weekendDays`. See {Iterator Invalidation} for information regarding which iterators are affected by the use of this method. Note that this method does not extend the valid range of the calendar.

== Synopsis

Declared in `<bdlt_calendar.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
addWeekendDaysTransition(
    xref:BloombergLP/bdlt/Date.adoc[Date] const& startDate,
    xref:BloombergLP/bdlt/DayOfWeekSet.adoc[DayOfWeekSet] const& weekendDays);
----


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