[#BloombergLP-bdlt-operator_lshift-0d0]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::operator<<
:relfileprefix: ../../
:mrdocs:

Write the specified `object` to the specified output `stream`.

== Synopsis

Declared in `<bdlt_datetimeinterval.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::ostream&
operator<<(
    std::ostream& stream,
    xref:BloombergLP/bdlt/DatetimeInterval.adoc[DatetimeInterval] const& object);
----

== Description

Write the value of the specified `object` to the specified output `stream` in a single‐line format, and return a reference providing modifiable access to `stream`. If `stream` is not valid on entry, this operation has no effect. Note that this human‐readable format is not fully specified and can change without notice. Also note that this method has the same behavior as `object.print(stream, 0, ‐1)`.

== Return Value

a reference providing modifiable access to `stream`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *stream*
| output stream
| *object*
| time interval to write
|===


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