From: Phil Pennock <phil@athenaeum.demon.co.uk>
To: zsh-workers@math.gatech.edu
Subject: Bug? in 'integer' behaviour
Date: Mon, 5 Oct 1998 00:18:03 +0100 (BST) [thread overview]
Message-ID: <199810042318.AAA05187@athenaeum.demon.co.uk> (raw)
Hi. I'm not subscribed, so please email me if there's anything else
you want to know (but I don't think anything is peculiar to my setup in
this one). I'm using version 3.1.4 on Linux/x86.
In the distribution is Functions/randline which purports to show a
random line from a file. The problem seems to be caused by a variable
declared integer not stripping off leading whitespace when assigned to.
randline:
# get a random line from a file
integer z=$(wc -l <"$1")
sed -n $[RANDOM%z+1]p "$1"
This produces a divide by zero error, as 'z' is always zero. Removing
the 'integer' keyword solves this, as does wrapping the RHS of the
assignment in $[...].
Is this unintuitively correct (features, gotta love 'em) or a bug?
Thanks.
--
--> Phil Pennock ; GAT d- s+:+ a22 C++(++++) UL++++/I+++/S+++/H+ P++@ L+++
E-@ W(+) N>++ o !K w--- O>+ M V !PS PE Y+ PGP+ t-- 5++ X+ R !tv b++>+++ DI+ D+
G+ e+ h* !r y?
next reply other threads:[~1998-10-05 0:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-10-04 23:18 Phil Pennock [this message]
1998-10-05 7:47 ` Peter Stephenson
1998-10-05 9:20 ` Bart Schaefer
1998-10-05 9:33 ` Peter Stephenson
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