[#BloombergLP-bdldfp-DecimalImpUtil-logB-07]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdldfp.adoc[bdldfp]::xref:BloombergLP/bdldfp/DecimalImpUtil.adoc[DecimalImpUtil]::logB
:relfileprefix: ../../../
:mrdocs:

Return the radix&hyphen;based logarithm of the absolute value of `x`&period;

== Synopsis

Declared in `&lt;bdldfp&lowbar;decimalimputil&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
xref:BloombergLP/bdldfp/DecimalImpUtil/ValueType64.adoc[DecimalImpUtil::ValueType64]
logB(xref:BloombergLP/bdldfp/DecimalImpUtil/ValueType64.adoc[ValueType64] x);
----

== Return Value

the radix&hyphen;based logarithm of the absolute value of `x`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *x*
| input value
|===


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