function test_redef_def_dim ( ncfile )
% TEST_REDEF_DEF_DIM
%
% Tests DEF_DIM by defining a new dimension.  Then tests
% REDEF by defining another dimension.
%


[ncid, status] = mexnc ( 'create', ncfile, nc_clobber_mode );
if ( status < 0 )
	ncerr = mexnc ( 'strerror', status );
	err_msg = sprintf ( '%s:  ''%s''\n', mfilename, ncerr );
	error ( err_msg );
end


%
% DIMDEF
[xdimid, status] = mexnc ( 'def_dim', ncid, 'x', 20 );
if ( status < 0 )
	ncerr = mexnc ( 'strerror', status );
	err_msg = sprintf ( '%s:  ''%s''\n', mfilename, ncerr );
	error ( err_msg );
end

%
% ENDEF
[status] = mexnc ( 'end_def', ncid );
if ( status < 0 )
	ncerr = mexnc ( 'strerror', status );
	err_msg = sprintf ( '%s:  ''%s''\n', mfilename, ncerr );
	error ( err_msg );
end

%
% REDEF
[status] = mexnc ( 'redef', ncid );
if ( status < 0 )
	ncerr = mexnc ( 'strerror', status );
	err_msg = sprintf ( '%s:  ''%s''\n', mfilename, ncerr );
	error ( err_msg );
end

[ydimid, status] = mexnc ( 'def_dim', ncid, 'y', 24 );
if ( status < 0 )
	ncerr = mexnc ( 'strerror', status );
	err_msg = sprintf ( '%s:  ''%s''\n', mfilename, ncerr );
	error ( err_msg );
end



status = mexnc ( 'close', ncid );
if ( status < 0 )
	ncerr = mexnc ( 'strerror', status );
	err_msg = sprintf ( '%s:  ''%s''\n', mfilename, ncerr );
	error ( err_msg );
end


fprintf ( 1, 'DEF_DIM succeeded.\n' );
fprintf ( 1, 'END_DEF succeeded.\n' );
fprintf ( 1, 'REDEF succeeded.\n' );


return












