[#BloombergLP-bdlc-swap-0b8]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::swap
:relfileprefix: ../../
:mrdocs:

Exchange the value, hasher, and key‐equality functor of two sets.

== Synopsis

Declared in `<bdlc_flathashset.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class KEY,
    class HASH,
    class EQUAL>
void
swap(
    xref:BloombergLP/bdlc/FlatHashSet.adoc[FlatHashSet<KEY, HASH, EQUAL>]& a,
    xref:BloombergLP/bdlc/FlatHashSet.adoc[FlatHashSet<KEY, HASH, EQUAL>]& b);
----

== Description

Exchange the value, the hasher, and the key‐equality functor of the specified `a` and `b` objects. This function provides the no‐throw exception‐safety guarantee if the two objects were created with the same allocator and the basic guarantee otherwise.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| first set to exchange
| *b*
| second set to exchange
|===


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