[#BloombergLP-bdlc-FlatHashMap-2constructor-03]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/FlatHashMap.adoc[FlatHashMap]::FlatHashMap
:relfileprefix: ../../../
:mrdocs:

Create a `FlatHashMap` object having the same value, hasher, and equality comparator as the specified `original` object, using the specified `basicAllocator` to supply memory. If `basicAllocator` is 0, the currently installed default allocator is used. The allocator of `original` remains unchanged. If `original` and the newly created object have the same allocator then the contents of `original` are moved (in constant time) to this object, `original` is left in a (valid) unspecified state, and no exceptions will be thrown; otherwise, `original` is unchanged (and an exception may be thrown).

== Synopsis

Declared in `<bdlc_flathashmap.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
FlatHashMap(
    xref:BloombergLP/bslmf/MovableRef.adoc[bslmf::MovableRef<FlatHashMap>] original,
    xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator);
----


[.small]#Created with https://www.mrdocs.com[MrDocs]#