[#BloombergLP-bdlsb-FixedMemOutStreamBuf-2constructor]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlsb.adoc[bdlsb]::xref:BloombergLP/bdlsb/FixedMemOutStreamBuf.adoc[FixedMemOutStreamBuf]::FixedMemOutStreamBuf
:relfileprefix: ../../../
:mrdocs:

Create a stream buffer that writes into a client‐supplied buffer.

== Synopsis

Declared in `<bdlsb_fixedmemoutstreambuf.h>`

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

== Description

Create an empty stream buffer that uses the specified character `buffer` of the specified `length`. The behavior is undefined unless `length == 0` or `length > 0 && buffer != 0`. Note that `buffer` is held but not owned.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *buffer*
| character buffer to use for output; held but not owned
| *length*
| size of `buffer` in characters
|===


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