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

Set the position indicator to the relative specified `offset` from the base position indicated by the specified `fixedPosition` and return the resulting absolute position on success or pos_type(‐1) on failure. Optionally specify `which` area of the stream buffer. The seek operation will fail if `which` does not include the flag `bsl::ios_base::out` or if the resulting absolute position is less than zero or greater than the value returned by `length`.

== Synopsis

Declared in `<bdlsb_fixedmemoutstreambuf.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
pos_type
seekoff(
    off_type offset,
    std::ios_base::seekdir fixedPosition,
    std::ios_base::openmode which = bsl::ios_base::out) override;
----


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