[#BloombergLP-bdlc-FlatHashSet-emplace_hint]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/FlatHashSet.adoc[FlatHashSet]::emplace&lowbar;hint
:relfileprefix: ../../../
:mrdocs:

Insert into this set a newly created `value&lowbar;type` object, constructed by forwarding `get&lowbar;allocator()` (if required) and the specified (variable number of) `args` to the corresponding constructor of `value&lowbar;type`, if a key equivalent to such a value does not already exists in this set&semi; otherwise, this method has no effect (other than possibly creating a temporary `value&lowbar;type` object)&period; Return an iterator referring to the (possibly newly created and inserted) object in this set whose value is equivalent to that of an object constructed from `arguments`&period; The average and worst case complexity of this operation is not affected by the specified `hint`&period; Note that `hint` is ignored (other than possibly asserting its validity in some build modes)&period;

== Synopsis

Declared in `&lt;bdlc&lowbar;flathashset&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class&period;&period;&period; ARGS&gt;
xref:BloombergLP/bdlc/FlatHashSet/iterator.adoc[FlatHashSet&lt;KEY, HASH, EQUAL&gt;::iterator]
emplace&lowbar;hint(
    xref:BloombergLP/bdlc/FlatHashSet/const_iterator.adoc[const&lowbar;iterator] hint,
    ARGS&&&period;&period;&period; args);
----


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