1
2# This Unicode escape sequence that has never been in range should either
3# fail to expand or expand to a fallback.
4
5c=$(eval printf %s \$\'\\Uffffff41\' 2>/dev/null)
6r=$(($? != 0))
7[ "$r.$c" = '1.' ] || [ "$r.$c" = '0.?' ] || [ "$r.$c" = $'0.\u2222' ]
8