[#btck-Iterator-operator_minus_eq]
= xref:btck.adoc[btck]::xref:btck/Iterator.adoc[Iterator]::operator&hyphen;&equals;
:relfileprefix: ../../
:mrdocs:

Rewinds the iterator by `n` positions&period;

== Synopsis

Declared in `&lt;kernel&sol;bitcoinkernel&lowbar;wrapper&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
auto&
operator&hyphen;&equals;(xref:btck/Iterator/difference_type.adoc[difference&lowbar;type] n);
----

== Return Value

A reference to this iterator&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *n*
| The number of positions to rewind&period;
|===


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