[#BloombergLP-bslstl-operator_inc-07]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::operator&plus;&plus;
:relfileprefix: ../../
:mrdocs:

Post&hyphen;increment the specified iterator and return its previous value&period;

== Synopsis

Declared in `&lt;bslstl&lowbar;bidirectionaliterator&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;
    class T,
    class ITER&lowbar;IMP,
    class TAG&lowbar;TYPE&gt;
xref:BloombergLP/bslstl/BidirectionalIterator.adoc[bslstl::BidirectionalIterator&lt;T, ITER&lowbar;IMP, TAG&lowbar;TYPE&gt;]
operator&plus;&plus;(
    xref:BloombergLP/bslstl/BidirectionalIterator.adoc[BidirectionalIterator&lt;T, ITER&lowbar;IMP, TAG&lowbar;TYPE&gt;]& iter,
    int unused);
----

== Description

Increment the specified `iter` to the next element&period; Return the previous value of `iter`&period; The behavior is undefined if, on entry, `iter` has the past&hyphen;the&hyphen;end value for an iterator of the underlying sequence&period;

== Return Value

previous value of `iter`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *iter*
| iterator to increment
| *unused*
| ignored&semi; distinguishes post&hyphen;increment
|===


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