[#BloombergLP-bdlb-swap-0d]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::swap
:relfileprefix: ../../
:mrdocs:

Efficiently exchange the values of the specified `a` and `b` objects by applying `swap` to each of the functor and underlying iterator fields of the two objects.

== Synopsis

Declared in `<bdlb_transformiterator.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class FUNCTOR,
    class ITERATOR>
void
swap(
    xref:BloombergLP/bdlb/TransformIterator.adoc[TransformIterator<FUNCTOR, ITERATOR>]& a,
    xref:BloombergLP/bdlb/TransformIterator.adoc[TransformIterator<FUNCTOR, ITERATOR>]& b);
----


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