[#BloombergLP-bdlc-CompactedArray_ConstIterator-operator_minus_eq] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlc.adoc[bdlc]::xref:BloombergLP/bdlc/CompactedArray_ConstIterator.adoc[CompactedArray_ConstIterator]::operator‐= :relfileprefix: ../../../ :mrdocs: Decrement this iterator by the specified `offset` from the location referenced by this iterator, and return a reference providing modifiable access to this iterator. The returned iterator, `it`, referencing a `CompactedArray` `array`, remains valid as long as `0 <= it ‐ array.begin() <= array.length()`. The behavior is undefined unless `CompactedArray_ConstIterator() != *this` and `0 <= *this ‐ array.begin() ‐ offset <= array.length()`. == Synopsis Declared in `<bdlc_compactedarray.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- xref:BloombergLP/bdlc/CompactedArray_ConstIterator.adoc[CompactedArray_ConstIterator<TYPE>]& operator‐=(std::ptrdiff_t offset); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#