[#BloombergLP-bdlsb-FixedMemOutStreamBuf-capacity]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlsb.adoc[bdlsb]::xref:BloombergLP/bdlsb/FixedMemOutStreamBuf.adoc[FixedMemOutStreamBuf]::capacity
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:mrdocs:

Return the number of characters in the buffer held by this stream buffer. See `length`, below, for the span of bytes actually written.

== Synopsis

Declared in `<bdlsb_fixedmemoutstreambuf.h>`

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


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