[#BloombergLP-bslalg-DequePrimitives-01-uninitializedFillNFront] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslalg.adoc[bslalg]::xref:BloombergLP/bslalg/DequePrimitives-01.adoc[DequePrimitives]::uninitializedFillNFront :relfileprefix: ../../../ :mrdocs: Prepend the specified `numElements` copies of the specified `value` to the deque starting at the specified `fromBegin` iterator, passing the specified `allocator` through to the new elements, and load into the specified `toBegin` an iterator pointing to the end of the data after prepending, i.e., `fromBegin ‐ numElements`. The behavior is undefined unless `fromBegin ‐ numElements` is a valid iterator (i.e., the block pointer array holds enough room before the `fromBegin` position to insert `numElements`). == Synopsis Declared in `<bslalg_dequeprimitives.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template<class ALLOCATOR> static void uninitializedFillNFront( xref:BloombergLP/bslalg/DequePrimitives-01/Iterator.adoc[Iterator]* toBegin, xref:BloombergLP/bslalg/DequePrimitives-01/Iterator.adoc[Iterator] fromBegin, xref:BloombergLP/bslalg/DequePrimitives-01/size_type.adoc[size_type] numElements, VALUE_TYPE const& value, ALLOCATOR allocator); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#