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# $FreeBSD: head/bin/sh/tests/expansion/arith5.0 206168 2010-04-04 16:48:33Z jilles $
failures=0
check() {
if [ "$2" != "$3" ]; then
failures=$((failures+1))
echo "For $1, expected $3 actual $2"
fi
}
unset a
check '$((1+${a:-$((7+2))}))' "$((1+${a:-$((7+2))}))" 10
check '$((1+${a:=$((2+2))}))' "$((1+${a:=$((2+2))}))" 5
check '$a' "$a" 4
exit $((failures != 0))
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