[#BloombergLP-bdlb-TransformIterator-operator_minus_eq]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/TransformIterator.adoc[TransformIterator]::operator&hyphen;&equals;
:relfileprefix: ../../../
:mrdocs:

Regress the underlying iterator of this object by the specified (signed) `offset`, and return a reference providing modifiable access to this object&period; The behavior is undefined if so regressing the underlying iterator is undefined&period;

== Synopsis

Declared in `&lt;bdlb&lowbar;transformiterator&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlb/TransformIterator.adoc[TransformIterator&lt;FUNCTOR, ITERATOR&gt;]&
operator&hyphen;&equals;(xref:BloombergLP/bdlb/TransformIterator/difference_type.adoc[difference&lowbar;type] offset);
----


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