[#BloombergLP-bdlc-FlatHashTable-2constructor-07d]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/FlatHashTable.adoc[FlatHashTable]::FlatHashTable
:relfileprefix: ../../../
:mrdocs:

Create an empty table with at least the specified `capacity`.

== Synopsis

Declared in `<bdlc_flathashtable.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
FlatHashTable(
    std::size_t capacity,
    HASH const& hash,
    EQUAL const& equal,
    xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0);
----

== Description

Create an empty table having at least the specified `capacity`, that will use the specified `hash` to generate hash values for the keys of the entries contained in this table, and the specified `equal` to verify that the keys of the two entries are the same. Optionally specify a `basicAllocator` used to supply memory. If `basicAllocator` is 0, the currently installed default allocator is used. If `0 == capacity`, no memory is allocated and the object is defined to be in the "zero‐capacity" state.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *capacity*
| minimum capacity for the new table
| *hash*
| hash functor used for keys
| *equal*
| key‐equality predicate
| *basicAllocator*
| allocator used to supply memory
|===


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