[#BloombergLP-bslstl-HashTable_Util]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::HashTable_Util
:relfileprefix: ../../
:mrdocs:

This utility `struct` provide utilities for initializing and destroying bucket lists in anchors that are managed by a `HashTable`. They cannot migrate down to `bslalg::HashTableImpUtil` as they rely on the standard library `bslma_allocatortraits` for their implementation.

== Synopsis

Declared in `<bslstl_hashtable.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct HashTable_Util;
----

== Static Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslstl/HashTable_Util/assertNotNullPointer-0c.adoc[`assertNotNullPointer`] 
| `assertNotNullPointer` overloads
| xref:BloombergLP/bslstl/HashTable_Util/destroyBucketArray.adoc[`destroyBucketArray`] 
| Destroy the specified `data` array of the specified length `bucketArraySize`, that was allocated by the specified `allocator`.
| xref:BloombergLP/bslstl/HashTable_Util/initAnchor.adoc[`initAnchor`] 
| Load into the specified `anchor` a (contiguous) array of buckets of the specified `bucketArraySize` using memory supplied by the specified `allocator`. The behavior is undefined unless `0 < bucketArraySize` and `0 == anchor‐>bucketArraySize()`. Note that this operation has no effect on `anchor‐>listRootAddress()`.
|===



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