[#BloombergLP-bslstl-operator_dec-08]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::operator‐‐
:relfileprefix: ../../
:mrdocs:

Post‐decrement the specified iterator and return its previous value.

== Synopsis

Declared in `<bslstl_bidirectionaliterator.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class T,
    class ITER_IMP,
    class TAG_TYPE>
xref:BloombergLP/bslstl/BidirectionalIterator.adoc[bslstl::BidirectionalIterator<T, ITER_IMP, TAG_TYPE>]
operator‐‐(
    xref:BloombergLP/bslstl/BidirectionalIterator.adoc[BidirectionalIterator<T, ITER_IMP, TAG_TYPE>]& iter,
    int unused);
----

== Description

Decrement the specified `iter` to the previous element. Return the previous value of `iter`. The behavior is undefined if, on entry, `iter` has the same value as an iterator to the start of the underlying sequence.

== Return Value

previous value of `iter`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *iter*
| iterator to decrement
| *unused*
| ignored; distinguishes post‐decrement
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#