=head1 NAME

gbatch_varupd - update the details of a variable

=head1 SYNOPSIS

=for man
\&\fB#include <gbatch.h>\fR
.PP

=for html
<STRONG>#include &lt;gbatch.h&gt;</STRONG>
<br>

B<int gbatch_varupd(const int>
I<fd>B<, const unsigned>
I<flags>B<, const slotno>
I<slot>B<, apiBtvar *>I<vard>B<)>

=head1 DESCRIPTION

The function B<gbatch_varupd> is used to update the details of a variable

I<fd> is a file descriptor which was previously returned by a
successful call to gbatch_open(3).

I<flags> is 0 or C<GBATCH_FLAG_IGNORESEQ> to ignore recent changes to
the variable list if possible.

I<slot> is the slot number corresponding to the variable as returned
by gbatch_varlist(3) or xb_varfindslot(3).

I<vard> is a pointer to a descriptor which contains the new details
for the variable.

=head1 RETURN VALUES

The function returns 0 if successful, otherwise an error code as
defined in the include file \fBgbatch.h\fR.

=head1 SEE ALSO

gbatch_varfind(3),
gbatch_varadd(3),
gbatch_varchcomm(3).
gbatch_varchgrp(3),
gbatch_varchmod(3),
gbatch_varchown(3),
gbatch_vardel(3),
gbatch_varlist(3),
gbatch_varread(3),
gbatch_varrename(3).

=head1 COPYRIGHT

Copyright (c) 2009 Free Software Foundation, Inc.
This is free software. You may redistribute copies of it under the
terms of the GNU General Public License
<http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

=head1 AUTHOR

John M Collins, Xi Software Ltd.

=cut

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