#   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/>.
#
wdir=$PWD
cd /

echo expect '~1'
echo ~1

pushd /usr
pushd /tmp
dirs

echo these lines should be the same
dirs +0
echo ~0 ${DIRSTACK[0]}
echo these lines should be the same
dirs +1
echo ~1 ${DIRSTACK[1]}
echo these lines should be the same
dirs +2
echo ~2 ${DIRSTACK[2]}

NDIRS=$(( ${#DIRSTACK[@]} - 1 ))

echo these lines should be the same
dirs -2
echo ~-2 ${DIRSTACK[NDIRS-2]}

echo these lines should be the same
dirs -1
echo ~-1 ${DIRSTACK[NDIRS-1]}
dirs -v -1

echo these lines should be the same
dirs -0
echo ~-0 ${DIRSTACK[NDIRS]}

cd "$wdir"