[#BloombergLP-bdlbb-Blob-appendDataBuffer-05]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlbb.adoc[bdlbb]::xref:BloombergLP/bdlbb/Blob.adoc[Blob]::appendDataBuffer
:relfileprefix: ../../../
:mrdocs:

Append the specified `buffer` after the last _data_ buffer of this blob; the last data buffer is trimmed, if necessary. The length of this blob is incremented by the size of `buffer`. The behavior is undefined unless neither the total size of the resulting blob nor its total number of buffers exceeds `INT_MAX`. Note that this operation is equivalent to: ` const int n = blob.length(); blob.trimLastDataBuffer(); blob.insertBuffer(numDataBuffers(), buffer); blob.setLength(n + buffer.size()); ` but is more efficient.

== Synopsis

Declared in `<bdlbb_blob.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
appendDataBuffer(xref:BloombergLP/bdlbb/BlobBuffer.adoc[BlobBuffer] const& buffer);
----


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