[#BloombergLP-bdlsb-FixedMemOutput-pubseekoff]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlsb.adoc[bdlsb]::xref:BloombergLP/bdlsb/FixedMemOutput.adoc[FixedMemOutput]::pubseekoff
:relfileprefix: ../../../
:mrdocs:

Set the position indicator relative to the specified `fixedPosition`.

== Synopsis

Declared in `<bdlsb_fixedmemoutput.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlsb/FixedMemOutput/pos_type.adoc[pos_type]
pubseekoff(
    xref:BloombergLP/bdlsb/FixedMemOutput/off_type.adoc[off_type] offset,
    std::ios_base::seekdir fixedPosition,
    std::ios_base::openmode which = bsl::ios_base::in | bsl::ios_base::out);
----

== Description

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`.

== Return Value

resulting absolute position, or `pos_type(‐1)` on failure

== Parameters

[cols="1,4"]
|===
| Name| Description
| *offset*
| signed displacement from `fixedPosition`
| *fixedPosition*
| base position (`beg`, `cur`, or `end`)
| *which*
| areas of the stream buffer; must include `out`
|===


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