[#BloombergLP-bdlt-operator_dec-05f]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::operator‐‐
:relfileprefix: ../../
:mrdocs:

Regress `iterator` to the previous business day and return its previous value.

== Synopsis

Declared in `<bdlt_packedcalendar.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlt/PackedCalendar_BusinessDayConstIterator.adoc[bdlt::PackedCalendar_BusinessDayConstIterator]
operator‐‐(
    xref:BloombergLP/bdlt/PackedCalendar_BusinessDayConstIterator.adoc[PackedCalendar_BusinessDayConstIterator]& iterator,
    int unused);
----

== Description

Regress the specified `iterator` to refer to the previous business day in the associated calendar, and return the previous value of `iterator`. The behavior is undefined unless, on entry, `iterator` references a valid business day that is not the first business day for the associated calendar.

== Return Value

the previous value of `iterator`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *iterator*
| business‐day iterator to regress
| *unused*
| unused argument distinguishing the postfix operator
|===


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