#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
f()
{
	local str=F
	g str
}

g()
{
	local -n ref=$1
	printf "%s " "$ref"
	ref=G
}

str=OUTSIDE;
f

printf "%s\n" "$str"

unset -f f g
unset str

f() { local -a arr=(F); g arr; };

g() { local -n ref=$1; printf "%s " "${ref[0]}"; ref=(G); };

arr=(OUTSIDE);
f;
printf "%s\n" "${arr[0]}"