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

Advance `iter` to the next node and return its previous value.

== Synopsis

Declared in `<bslstl_hashtableiterator.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class VALUE_TYPE,
    class DIFFERENCE_TYPE>
xref:BloombergLP/bslstl/HashTableIterator.adoc[HashTableIterator<VALUE_TYPE, DIFFERENCE_TYPE>]
operator++(
    xref:BloombergLP/bslstl/HashTableIterator.adoc[HashTableIterator<VALUE_TYPE, DIFFERENCE_TYPE>]& iter,
    int postfix);
----

== Description

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

== 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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