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Re: Unset array doesn't work


From: Nikolai Kondrashov
Subject: Re: Unset array doesn't work
Date: Mon, 12 Feb 2018 09:23:09 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0

On 02/12/2018 09:06 AM, Clark Wang wrote:
On Mon, Feb 12, 2018 at 2:45 PM, Nikolai Kondrashov <address@hidden 
<mailto:address@hidden>> wrote:

    On 02/12/2018 08:41 AM, Nikolai Kondrashov wrote:

              inner() {
                  unset res


    Oh, and duplicating this line fixes the issue.


Take a look at these links:

  - http://wiki.bash-hackers.org/commands/builtin/unset
  - http://www.fvue.nl/wiki/Bash:_Passing_variables_by_reference

Thanks, Clark! However, I find it difficult to follow the explanation at the
first link and even more difficult to connect it to this case. So I'm not sure
I'm getting it right. Could you maybe explain what exactly happens in the code
I posted?

Regarding the second link, yeah I can see a few ways that the code in question
could be improved regarding passing the values from the function, but it's not
my code, so I wouldn't like to push for a change unless the problem is indeed
with the code and not with Bash.

Thank you.

Nick



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