.\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.
.TH "asn1_check_version" 3 "4.19.0" "libtasn1" "libtasn1"
.SH NAME
asn1_check_version \- API function
.SH SYNOPSIS
.B #include <libtasn1.h>
.sp
.BI "const char * asn1_check_version(const char * " req_version ");"
.SH ARGUMENTS
.IP "const char * req_version" 12
Required version number, or \fBNULL\fP.
.SH "DESCRIPTION"
Check that the version of the library is at minimum the
requested one and return the version string; return \fBNULL\fP if the
condition is not satisfied.  If a \fBNULL\fP is passed to this function,
no check is done, but the version string is simply returned.

See \fBASN1_VERSION\fP for a suitable  \fIreq_version\fP string.
.SH "RETURNS"
Version string of run\-time library, or \fBNULL\fP if the
run\-time library does not meet the required version number.
.SH COPYRIGHT
Copyright \(co 2006-2022 Free Software Foundation, Inc..
.br
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
.SH "SEE ALSO"
The full documentation for
.B libtasn1
is maintained as a Texinfo manual.  If the
.B info
and
.B libtasn1
programs are properly installed at your site, the command
.IP
.B info libtasn1
.PP
should give you access to the complete manual.
As an alternative you may obtain the manual from:
.IP
.B https://www.gnu.org/software/libtasn1/manual/
.PP