[#BloombergLP-bslstl-operator_inc-0d3]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::operator&plus;&plus;
:relfileprefix: ../../
:mrdocs:

Advance `iter` to the next node and return its previous value&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;
    class VALUE&lowbar;TYPE,
    class DIFFERENCE&lowbar;TYPE&gt;
xref:BloombergLP/bslstl/HashTableIterator.adoc[HashTableIterator&lt;VALUE&lowbar;TYPE, DIFFERENCE&lowbar;TYPE&gt;]
operator&plus;&plus;(
    xref:BloombergLP/bslstl/HashTableIterator.adoc[HashTableIterator&lt;VALUE&lowbar;TYPE, DIFFERENCE&lowbar;TYPE&gt;]& iter,
    int postfix);
----

== Description

The behavior is undefined unless `iter` refers to a valid (not yet erased) node in the list&period;

== Return Value

copy of the iterator before it was advanced

== Parameters

[cols="1,4"]
|===
| Name| Description
| *iter*
| iterator to advance
| *postfix*
| unused parameter distinguishing the postfix operator
|===


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