[#BloombergLP-bslstl-swap-0ee]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::swap
:relfileprefix: ../../
:mrdocs:

Exchange the nodes of the specified `a` and `b` objects.

== Synopsis

Declared in `<bslstl_bidirectionalnodepool.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class VALUE,
    class ALLOCATOR>
void
swap(
    xref:BloombergLP/bslstl/BidirectionalNodePool.adoc[BidirectionalNodePool<VALUE, ALLOCATOR>]& a,
    xref:BloombergLP/bslstl/BidirectionalNodePool.adoc[BidirectionalNodePool<VALUE, ALLOCATOR>]& b);
----

== Description

Efficiently exchange the nodes of the specified `a` object with those of the specified `b` object. This method provides the no‐throw exception‐safety guarantee. The behavior is undefined unless `a.allocator() == b.allocator()`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| first node‐pool participating in the swap
| *b*
| second node‐pool participating in the swap
|===


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