[#BloombergLP-bdlc-HashTable-2constructor-04]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/HashTable.adoc[HashTable]::HashTable
:relfileprefix: ../../../
:mrdocs:

Create a double‐hash table with the specified `capacityHint`. Use the specified `hashFunctor1` as the first hash function; use the specified `hashFunctor2` as the second hash function. Optionally specify a `basicAllocator` used to supply memory. If `basicAllocator` is 0, the currently installed default allocator is used. The behavior is undefined unless `0 != capacityHint`, and `hashFunction1` and `hashFunction2` are valid. Note that `capacityHint` can be either a positive integer or a negative integer. If `capacityHint` is positive, then the capacity of the hash table will be the first available prime number larger than, or equal to, `capacityHint`. Otherwise, the capacity of the hash table will be the first available prime number smaller than, or equal to, `capacityHint`.

== Synopsis

Declared in `<bdlc_hashtable.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
HashTable(
    xref:BloombergLP/bsls/Types/Int64.adoc[bsls::Types::Int64] capacityHint,
    HASH1 const& hashFunctor1,
    HASH2 const& hashFunctor2,
    xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0);
----


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