[apple/shell_cmds.git] / sh / tests / expansion / length4.0

# $FreeBSD: head/bin/sh/tests/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'
Commit	Line	Data
deb63bfb	1	# $FreeBSD: head/bin/sh/tests/expansion/length4.0 220655 2011-04-15 15:26:05Z jilles $
71aad674 A	2
	3	# The construct ${#?} is ambiguous in POSIX.1-2008: it could be the length
	4	# of $? or it could be $# giving an error in the (impossible) case that it
	5	# is not set.
	6	# We use the former interpretation; it seems more useful.
	7
	8	:
	9	[ "${#?}" = 1 ] \|\| echo '${#?} wrong'
	10	(exit 42)
	11	[ "${#?}" = 2 ] \|\| echo '${#?} wrong'