[#BloombergLP-bdlt-operator_minus-01]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::operator&hyphen;
:relfileprefix: ../../
:mrdocs:

Return a `DatetimeInterval` object whose value is the negative of the specified time interval `value`&period; The behavior is undefined unless `INT&lowbar;MIN &lt; value&period;days()`&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlt/DatetimeInterval.adoc[bdlt::DatetimeInterval]
operator&hyphen;(xref:BloombergLP/bdlt/DatetimeInterval.adoc[DatetimeInterval] const& value);
----

== Return Value

the negation of `value`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *value*
| time interval to negate
|===


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