[#BloombergLP-bslstl-operator_inc-008]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::operator++
:relfileprefix: ../../
:mrdocs:

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

== Synopsis

Declared in `<bslstl_forwarditerator.h>`

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


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