[#BloombergLP-bslstl-operator_inc-0d9]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::operator++
:relfileprefix: ../../
:mrdocs:

Move the specified `iterator` to the next element and return its prior value.

== Synopsis

Declared in `<bslstl_hashtablebucketiterator.h>`

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

== Description

The behavior is undefined unless `iterator` refers to a valid (not yet erased) element in a bucket. Note that `iterator` is invalidated when the underlying hash table is rehashed.

== Return Value

copy of `iterator` prior to advancement

== Parameters

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


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