[#BloombergLP-bdlsb-FixedMemInStreamBuf-setbuf-09]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlsb.adoc[bdlsb]::xref:BloombergLP/bdlsb/FixedMemInStreamBuf.adoc[FixedMemInStreamBuf]::setbuf
:relfileprefix: ../../../
:mrdocs:

Reinitialize this stream buffer to use the specified character `buffer` having the specified `length`. Return the pointer providing modifiable access to this stream buffer.

== Synopsis

Declared in `<bdlsb_fixedmeminstreambuf.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
xref:BloombergLP/bdlsb/FixedMemInStreamBuf.adoc[FixedMemInStreamBuf]*
setbuf(
    char* buffer,
    std::streamsize length) override;
----


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