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authorCameron Katri <me@cameronkatri.com>2021-05-09 14:20:58 -0400
committerCameron Katri <me@cameronkatri.com>2021-05-09 14:20:58 -0400
commit5fd83771641d15c418f747bd343ba6738d3875f7 (patch)
tree5abf0f78f680d9837dbd93d4d4c3933bb7509599 /shell_cmds/sh/tests/expansion/length4.0
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Diffstat (limited to 'shell_cmds/sh/tests/expansion/length4.0')
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diff --git a/shell_cmds/sh/tests/expansion/length4.0 b/shell_cmds/sh/tests/expansion/length4.0
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+# $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'