From: Ray Andrews <rayandrews@eastlink.ca>
To: zsh-users@zsh.org
Subject: Re: unexpected unmodified variable
Date: Thu, 6 Oct 2022 18:37:16 -0700 [thread overview]
Message-ID: <0bc658a2-3941-82f5-2433-d105f31db09a@eastlink.ca> (raw)
In-Reply-To: <CAH+w=7ZcbFEKwuKa4Axvh=LRstSoSLab0SWvvitpEGrMwp5Lag@mail.gmail.com>
On 2022-10-06 17:36, Bart Schaefer wrote:
> Shrug; shells were originally designed to facilitate text processing
> by small independent single-purpose applications. Everything else is
> a bolt-on.
Yes, the ultimate example of accretion.
Playing with that, it seems the last math operation gets to be the rv
unless you set a return value, which seems to not go away:
functions -M func2
func2 ()
{
echo func2 here!
count=2
#return 3
}
func1 ()
{
local count=1
var=$(( func2() ))
echo var is: $var, count is $count
}
$ func1
func2 here!
var is: 3, count is 2
... I had : "return 3" active, but commenting it out didn't seem to
change anything which is puzzling. Anyway, it seems that 'count' can be
a normal variable just so long as 'func2' is called mathematically.
It's not very intuitive but an interesting party trick just the same.
Or am I missing something as usual?
next prev parent reply other threads:[~2022-10-07 1:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-06 19:07 Ray Andrews
2022-10-06 19:28 ` Peter Stephenson
2022-10-06 21:58 ` Ray Andrews
2022-10-07 0:36 ` Bart Schaefer
2022-10-07 1:37 ` Ray Andrews [this message]
2022-10-07 4:36 ` Bart Schaefer
2022-10-07 15:28 ` Ray Andrews
2022-10-07 20:00 ` Bart Schaefer
2022-10-07 21:59 ` Ray Andrews
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