[#absl-AnySpan-IteratorBase-operator_minus_eq]
= xref:absl.adoc[absl]::xref:absl/AnySpan.adoc[AnySpan]::xref:absl/AnySpan.adoc[IteratorBase]::operator‐=
:relfileprefix: ../../../
:mrdocs:

Moves the iterator back by `d` positions.

== Synopsis

Declared in `<absl/types/any_span.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
Iter&
operator‐=(xref:absl/AnySpan/IteratorBase/difference_type.adoc[difference_type] d);
----

== Return Value

A reference to this iterator.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *d*
| Number of positions to move back.
|===


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