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

Write to the specified output `stream` the specified `checksum` value and return a reference to the modifiable `stream`.

== Synopsis

Declared in `<bdlde_crc64.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::ostream&
operator<<(
    std::ostream& stream,
    xref:BloombergLP/bdlde/Crc64.adoc[Crc64] const& checksum);
----


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