[#BloombergLP-bdlbb-BlobUtil-prependWithCapacityBuffer] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlbb.adoc[bdlbb]::xref:BloombergLP/bdlbb/BlobUtil.adoc[BlobUtil]::prependWithCapacityBuffer :relfileprefix: ../../../ :mrdocs: Prepend the specified `length` bytes from the specified `source` address to the specified `dest`. Use the existing capacity in `dest` first if `0 == dest‐>length()`, followed by that in the `buffer`, and finally allocate from the blob buffer factory associated with the `dest`. Load any unused space into the specified `buffer`. The behavior is undefined unless the range `[source, source + length)]` represents a readable sequence of memory. == Synopsis Declared in `<bdlbb_blobutil.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- static void prependWithCapacityBuffer( xref:BloombergLP/bdlbb/Blob.adoc[Blob]* dest, xref:BloombergLP/bdlbb/BlobBuffer.adoc[BlobBuffer]* buffer, char const* source, int length); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#