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# $FreeBSD: release/9.1.0/tools/regression/bin/sh/expansion/length4.0 220655 2011-04-15 15:26:05Z jilles $
# The construct ${#?} is ambiguous in POSIX.1-2008: it could be the length
# of $? or it could be $# giving an error in the (impossible) case that it
# is not set.
# We use the former interpretation; it seems more useful.
:
[ "${#?}" = 1 ] || echo '${#?} wrong'
(exit 42)
[ "${#?}" = 2 ] || echo '${#?} wrong'