[#BloombergLP-bdlsb-FixedMemInStreamBuf-showmanyc]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlsb.adoc[bdlsb]::xref:BloombergLP/bdlsb/FixedMemInStreamBuf.adoc[FixedMemInStreamBuf]::showmanyc
:relfileprefix: ../../../
:mrdocs:

Return the number of characters currently available for reading from this stream buffer, or &hyphen;1 if there are none&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
std::streamsize
showmanyc() override;
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[.small]#Created with https://www.mrdocs.com[MrDocs]#
