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author | jilles <jilles@FreeBSD.org> | 2011-04-15 15:26:05 +0000 |
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committer | jilles <jilles@FreeBSD.org> | 2011-04-15 15:26:05 +0000 |
commit | d59eb063a480ce0e198b38158513c79ed5dc7f3b (patch) | |
tree | cb5de2aa98ea2050434434e54fc53e3a7b8e3fd5 /tools | |
parent | 6f6442dbe066e17a014ed28489de3f4817d2f98c (diff) | |
download | FreeBSD-src-d59eb063a480ce0e198b38158513c79ed5dc7f3b.zip FreeBSD-src-d59eb063a480ce0e198b38158513c79ed5dc7f3b.tar.gz |
sh: Add test for obscure and ambiguous ${#?}.
Diffstat (limited to 'tools')
-rw-r--r-- | tools/regression/bin/sh/expansion/length4.0 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/regression/bin/sh/expansion/length4.0 b/tools/regression/bin/sh/expansion/length4.0 new file mode 100644 index 0000000..5348be5 --- /dev/null +++ b/tools/regression/bin/sh/expansion/length4.0 @@ -0,0 +1,11 @@ +# $FreeBSD$ + +# 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' |