= nng_aio_set_output(3)
:doctype: manpage
:manmanual: nng
:mansource: nng
:manvolnum: 3
:copyright: Copyright 2018 mailto:info@staysail.tech[Staysail Systems, Inc.] + \
            Copyright 2018 mailto:info@capitar.com[Capitar IT Group BV] + \
            {blank} + \
            This document is supplied under the terms of the \
            https://opensource.org/licenses/MIT[MIT License].

== NAME

nng_aio_set_output - set output result

== SYNOPSIS

[source, c]
-----------
#include <nng/nng.h>

void nng_aio_set_output(nng_aio *aio, unsigned int index, void *result);
-----------

== DESCRIPTION

The `nng_aio_set_output()` function sets the output result at _index_ 
to _result_ for the asynchronous operation associated with _aio_.

The type and semantics of output results are determined by specific
operations; the operation must supply appropriate output results when
the operation completes successfully.

The valid values of _index_ range from zero (0) to three (3), as no operation
currently defined can return more than four results.  (This limit could
increase in the future.)

NOTE:  Note that attempts to set results with an _index_ greater than
three (3) will be ignored.

An output result set with this function may be retrieved later with
the <<nng_aio_get_output#,nng_aio_get_output(3)>> function.

== RETURN VALUES

None.

== ERRORS

None.

== SEE ALSO

<<nng_aio_alloc#,nng_aio_alloc(3)>>,
<<nng_aio_finish#,nng_aio_finish(3)>>,
<<nng_aio_get_output#,nng_aio_get_output(3)>>,
<<nng_aio_result#,nng_aio_result(3)>>,
<<nng#,nng(7)>>

== COPYRIGHT

{copyright}