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# $FreeBSD: releng/12.1/bin/sh/tests/expansion/arith14.0 270029 2014-08-15 22:36:41Z jilles $
# Check that <</>> use the low bits of the shift count.
if [ $((1<<16<<16)) = 0 ]; then
width=32
elif [ $((1<<32<<32)) = 0 ]; then
width=64
elif [ $((1<<64<<64)) = 0 ]; then
width=128
elif [ $((1<<64>>64)) = 1 ]; then
# Integers are wider than 128 bits; assume arbitrary precision.
# Nothing to test here.
exit 0
else
echo "Cannot determine integer width"
exit 2
fi
twowidth=$((width * 2))
j=43 k=$((1 << (width - 2))) r=0
i=0
while [ $i -lt $twowidth ]; do
if [ "$((j << i))" != "$((j << (i + width)))" ]; then
echo "Problem with $j << $i"
r=2
fi
i=$((i + 1))
done
i=0
while [ $i -lt $twowidth ]; do
if [ "$((k >> i))" != "$((k >> (i + width)))" ]; then
echo "Problem with $k >> $i"
r=2
fi
i=$((i + 1))
done
exit $r
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