[#BloombergLP-bdlt-Date-operator_plus_eq]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/Date.adoc[Date]::operator&plus;&equals;
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:mrdocs:

Assign to this object the value that is later by the specified (signed) `numDays` from its current value, and return a reference providing modifiable access to this object&period; The behavior is undefined unless the resulting value falls within the range of dates supported by this class (see `isValidYearMonthDay`)&period; Note that `numDays` may be negative&period;

== Synopsis

Declared in `&lt;bdlt&lowbar;date&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:BloombergLP/bdlt/Date.adoc[Date]&
operator&plus;&equals;(int numDays);
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