[#BloombergLP-bdlb-GuidUtil-getMostSignificantBits]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/GuidUtil.adoc[GuidUtil]::getMostSignificantBits
:relfileprefix: ../../../
:mrdocs:

Return the most significant 8 bytes of the specified `guid`&period;

== Synopsis

Declared in `&lt;bdlb&lowbar;guidutil&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
xref:BloombergLP/bsls/Types/Uint64.adoc[bsls::Types::Uint64]
getMostSignificantBits(xref:BloombergLP/bdlb/Guid.adoc[Guid] const& guid);
----

== Return Value

the most significant 8 bytes of `guid`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *guid*
| GUID whose most significant 8 bytes are returned
|===


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