[#BloombergLP-bdlsb-FixedMemOutput-length]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlsb.adoc[bdlsb]::xref:BloombergLP/bdlsb/FixedMemOutput.adoc[FixedMemOutput]::length
:relfileprefix: ../../../
:mrdocs:

Return the number of characters from the beginning of the buffer to the current write position&period;

== Synopsis

Declared in `&lt;bdlsb&lowbar;fixedmemoutput&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::streamsize
length() const;
----


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