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8868edaf CR |
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 | # | |
ac50fbac CR |
14 | fn () |
15 | { | |
16 | declare -n var=foo; var=bar | |
17 | } | |
18 | ||
19 | unset foo | |
20 | fn | |
21 | echo ${foo:-unset} | |
22 | ||
23 | unset -f fn | |
24 | unset foo | |
25 | fn() | |
26 | { | |
27 | declare -n var; var=foo | |
28 | } | |
29 | ||
30 | fn | |
31 | echo ${foo:-unset} |