[#BloombergLP-bdlb-BitStringImpUtil-find1AtMaxIndexRaw]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/BitStringImpUtil.adoc[BitStringImpUtil]::find1AtMaxIndexRaw
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:mrdocs:

Return the index of the highest‐order set bit in a non‐zero value.

== Synopsis

Declared in `<bdlb_bitstringimputil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
int
find1AtMaxIndexRaw(uint64_t value);
----

== Description

Return the index of the highest‐order set bit in the specified non‐zero `value`. The behavior is undefined unless `0 != value`. Note that this method is "raw" due to the requirement that at least one bit in `value` must be set.

== Return Value

index of the highest‐order set bit

== Parameters

[cols="1,4"]
|===
| Name| Description
| *value*
| non‐zero word to search
|===


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