[#BloombergLP-balber-BerUtil_DateAndTimeHeaderImpUtil-isExtendedBinary]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balber.adoc[balber]::xref:BloombergLP/balber/BerUtil_DateAndTimeHeaderImpUtil.adoc[BerUtil&lowbar;DateAndTimeHeaderImpUtil]::isExtendedBinary
:relfileprefix: ../../../
:mrdocs:

Return `true` if the specified `firstByte` of an encoded date&hyphen;and&hyphen;time value indicates it is in the extended&hyphen;binary&hyphen;encoding format, and return `false`&period;

== Synopsis

Declared in `&lt;balber&lowbar;berutil&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
bool
isExtendedBinary(unsigned char firstByte);
----

== Description

otherwise&period;

== Return Value

`true` if `firstByte` indicates extended&hyphen;binary encoding, and `false` otherwise

== Parameters

[cols="1,4"]
|===
| Name| Description
| *firstByte*
| first byte of an encoded date&hyphen;and&hyphen;time value
|===


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