[#BloombergLP-bdlbb-InBlobStreamBuf-showmanyc]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlbb.adoc[bdlbb]::xref:BloombergLP/bdlbb/InBlobStreamBuf.adoc[InBlobStreamBuf]::showmanyc
:relfileprefix: ../../../
:mrdocs:

Return the number of characters currently available for reading from this stream buffer, or 0 if there are none&period;

== Synopsis

Declared in `&lt;bdlbb&lowbar;blobstreambuf&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
std::streamsize
showmanyc() override;
----

== Return Value

number of characters available for reading, or 0 if none


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