'\" t
.\"     Title: nng_version
.\"    Author: [see the "AUTHOR(S)" section]
.\" Generator: Asciidoctor 2.0.23
.\"      Date: 2025-02-02
.\"    Manual: NNG Reference Manual
.\"    Source: \ \&
.\"  Language: English
.\"
.TH "NNG_VERSION" "3" "2025-02-02" "\ \&" "NNG Reference Manual"
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.SH "NAME"
nng_version \- report library version
.SH "SYNOPSIS"
.sp
.if n .RS 4
.nf
.fam C
#include <nng/nng.h>

const char * nng_version(void);
.fam
.fi
.if n .RE
.SH "DESCRIPTION"
.sp
The \f(CRnng_version()\fP function returns a human readable version number
for \fINNG\fP.
.sp
Additionally, compile time version information is available
via some predefined macros:
.sp
\f(CRNNG_MAJOR_VERSION\fP
.RS 4
Major version number.
.RE
.sp
\f(CRNNG_MINOR_VERSION\fP
.RS 4
Minor version number.
.RE
.sp
\f(CRNNG_PATCH_VERSION\fP
.RS 4
Patch version number.
.RE
.sp
\fINNG\fP is developed and released using
.URL "http://www.semver.org" "Semantic Versioning 2.0" ","
and
the version numbers reported refer to both the API and the
library itself.
(The ABI \(em application binary interface \(em between the
library and the application is controlled in a similar, but different
manner depending upon the link options and how the library is built.)
.SH "RETURN VALUES"
.sp
Null\-terminated string containing the library version number.
.SH "ERRORS"
.sp
None.
.SH "SEE ALSO"
.sp
libnng(3),
nng(7)