From: "Bart Schaefer" <schaefer@brasslantern.com>
To: Clint Adams <clint@zsh.org>, zsh-workers@sunsite.dk
Cc: 163391-forwarded@bugs.debian.org
Subject: Re: [doogie@debian.org: Bug#163391: unset array[key] where key is non-existent doesn't fail]
Date: Sat, 5 Oct 2002 19:52:09 +0000 [thread overview]
Message-ID: <1021005195209.ZM5915@candle.brasslantern.com> (raw)
In-Reply-To: <20021005173125.GA24695@dman.com>
On Oct 5, 1:31pm, Clint Adams wrote:
}
} I'm not sure to what "contract" he's referring, but SUSv3 says
}
} Unsetting a variable or function that was not previously set shall not
} be considered an error and does not cause the shell to abort.
}
} and that unset should return a >0 exit status if any of the "name"
} operands cannot be unset.
}
} Of course, it knows nothing about associative arrays.
Exactly. The variable "aarray" WAS previously set (by "declare -A").
The fact that a particular hash key was not assigned-to is irrelevant.
zsh -c 'typeset non_existant_var;
unset non_existant_var && echo consistent || echo inconsistent'
--
Bart Schaefer Brass Lantern Enterprises
http://www.well.com/user/barts http://www.brasslantern.com
Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net
prev parent reply other threads:[~2002-10-05 19:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-05 17:31 Clint Adams
2002-10-05 19:52 ` Bart Schaefer [this message]
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