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failures=0
unset LC_CTYPE LC_COLLATE LANG LANGUAGE
export LC_ALL=C
i=128
set -f
while [ "$i" -le 255 ]; do
i2=$((i^2))
c=$(printf \\"$(printf %o "$i")")
c2=$(printf \\"$(printf %o "$i2")")
IFS=$c
set -- $c2$c$c2$c$c2
if [ "$#" -ne 3 ] || [ "$1" != "$c2" ] || [ "$2" != "$c2" ] ||
[ "$3" != "$c2" ]; then
echo "Bad results for separator $i (word $i2)" >&2
: $((failures += 1))
fi
i=$((i+1))
done
exit $((failures > 0))
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