[#absl-ExtraMessage-operator_lshift-0b]
= xref:absl.adoc[absl]::xref:absl/ExtraMessage.adoc[ExtraMessage]::operator&lt;&lt;
:relfileprefix: ../../
:mrdocs:

Appends to the extra message that will be added to the original status&period;

== Synopsis

Declared in `&lt;absl&sol;status&sol;status&lowbar;builder&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;typename T&gt;
xref:absl/ExtraMessage.adoc[ExtraMessage]&
operator&lt;&lt;(T const& value) &amp;;
----

== Description

By default, the extra message is added to the original message as if by `util&colon;&colon;Annotate`, which includes a convenience separator between the original message and the enriched one&period;

== Return Value

`&ast;this` to allow method chaining&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *value*
| The value to append to the extra message&period;
|===


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