[#BloombergLP-bdlt-operator_dec-052]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::operator‐‐
:relfileprefix: ../../
:mrdocs:

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.

== Synopsis

Declared in `<bdlt_calendar.h>`

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


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