#   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/>.
#
fff()
{
	typeset i=0 x=10
	echo "|$i|$x|"
	export x
	printenv x
}

fff2()
{
	echo "|$x|"
	export x
	printenv x
}

fff3()
{
	typeset i=0 x="${x-10}"
	echo "|$i|$x|"
}

fff4()
{
	typeset i=0 x
	x="${x-10}"
	echo "|$i|$x|"
}

fff5()
{
	z=y typeset z
	echo "|$z|"
}

fff
x=10 fff
x=1 fff
x=4 fff2
x=11 fff3
echo after fff3: x=$x
x=12 fff4

fff5
z=42 fff5