1#   This program is free software: you can redistribute it and/or modify
2#   it under the terms of the GNU General Public License as published by
3#   the Free Software Foundation, either version 3 of the License, or
4#   (at your option) any later version.
5#
6#   This program is distributed in the hope that it will be useful,
7#   but WITHOUT ANY WARRANTY; without even the implied warranty of
8#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
9#   GNU General Public License for more details.
10#
11#   You should have received a copy of the GNU General Public License
12#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
13#
14fn ()
15{
16	declare -n var=foo; var=bar
17}
18
19unset foo
20fn
21echo ${foo:-unset}
22
23unset -f fn
24unset foo
25fn()
26{
27	declare -n var; var=foo
28}
29
30fn
31echo ${foo:-unset}
32