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= nng_http_res_set_version(3http)
//
// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
//
// This document is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
== NAME
nng_http_res_set_version - set HTTP response protocol version
== SYNOPSIS
[source, c]
----
#include <nng/nng.h>
#include <nng/supplemental/http/http.h>
int nng_http_res_set_version(nng_http_res *res, const char *version);
----
== DESCRIPTION
The `nng_http_res_set_version()` sets the HTTP protocol version associated with
the response _res_ to _version_.
The _version_ must be a string containing
a valid HTTP protocol version, such as "HTTP/1.0".
The default value is "HTTP/1.1".
A local copy of the _version_ is made in the response _res_.
NOTE: No validation of the version supplied is performed.
NOTE: The library does not contain support for versions of HTTP other than
"HTTP/1.0" and "HTTP/1.1".
Specifying any other version may result in unspecified behavior.
== RETURN VALUES
This function returns 0 on success, and non-zero otherwise.
== ERRORS
[horizontal]
`NNG_ENOMEM`:: Insufficient memory to perform the operation.
`NNG_ENOTSUP`:: No support for HTTP in the library.
== SEE ALSO
[.text-left]
<<nng_http_res_alloc.3http#,nng_http_res_alloc(3http)>>,
<<nng_http_req_get_version.3http#,nng_http_req_get_version(3http)>>,
<<nng.7#,nng(7)>>
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