[#bsl-basic_stringbuf-seekpos-00]
= xref:bsl.adoc[bsl]::xref:bsl/basic_stringbuf.adoc[basic_stringbuf]::seekpos
:relfileprefix: ../../
:mrdocs:

Set the current stream position.

== Synopsis

Declared in `<bslstl_stringbuf.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
xref:bsl/basic_stringbuf/pos_type.adoc[basic_stringbuf<CHAR_TYPE, CHAR_TRAITS, ALLOCATOR>::pos_type]
seekpos(
    xref:bsl/basic_stringbuf/pos_type.adoc[pos_type] absoluteOffset,
    std::ios_base::openmode modeBitMask = ios_base::in | ios_base::out);
----

== Description

Set the current input position or the current output position (or both) to the specified `absoluteOffset` from the beginning of the stream. Optionally specify a `modeBitMask` indicating whether to set the current input position, current output position, or both. Return the offset of the new position on success, and `pos_type(off_type(‐1))` otherwise.

== Return Value

offset of the new position, or `pos_type(off_type(‐1))` on failure

== Parameters

[cols="1,4"]
|===
| Name| Description
| *absoluteOffset*
| absolute position from the beginning of the stream
| *modeBitMask*
| whether to adjust the input position, output position, or both
|===


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