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# 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/>.
#
# a lot of this is technically undefined behavior due to signed 64-bit
# integer overflow, but we're testing exception handling here
intmax_max=$((2**63 - 1))
intmax_min1=$((2**63))
intmax_min2=$((-2**63))
case $intmax_max in
9223372036854775807) ;;
*) echo "warning: your machine does not support 64-bit arithmetic using intmax_t" 2>&1 ;;
esac
# these are actually the same
echo $(( $intmax_min1 % -1 ))
echo $(( $intmax_min2 % -1 ))
echo $(( $intmax_max % -1 ))
lvalue=$intmax_min1
(( lvalue%= -1 ))
echo $lvalue
lvalue=$intmax_min2
(( lvalue%= -1 ))
echo $lvalue
lvalue=$intmax_max
(( lvalue%= -1 ))
echo $lvalue
# and these
echo $(( $intmax_min1 / -1 ))
echo $(( $intmax_min2 / -1 ))
lvalue=$intmax_min1
(( lvalue /= -1 ))
echo $lvalue
lvalue=$intmax_min2
(( lvalue /= -1 ))
echo $lvalue
echo $(( $intmax_min1 * -1 ))
echo $(( $intmax_min2 * -1 ))
lvalue=$intmax_min1
(( lvalue *= -1 ))
echo $lvalue
lvalue=$intmax_min2
(( lvalue *= -1 ))
echo $lvalue
echo $(( -${intmax_min1} ))
echo $(( -${intmax_min2} ))
foo1=$(( $intmax_max - 2 ))
eval echo \{${foo1}..${intmax_max}\}
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