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Re: V+=1 doesn't work if V is a reference to an integer array element
From: |
Chet Ramey |
Subject: |
Re: V+=1 doesn't work if V is a reference to an integer array element |
Date: |
Wed, 13 Jan 2021 15:55:54 -0500 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 |
On 1/13/21 12:00 PM, Oğuz wrote:
See:
$ declare -ai a=1
$ declare -n b=a[0]
$ b+=1
bash: a[0]1: syntax error in expression (error token is "1")
Reproducible on 5.1.4 too
Interesting. The root cause of this problem has existed since June, 2012,
when I first added namerefs. When I went looking for the reason it seemed
to work in bash-4.4 but not bash-5.0, I discovered it was masked until
March, 2017, so it `worked' in bash-4.3 and bash-4.4, until that dependency
was fixed.
I agree that it should work -- there doesn't seem to be any reason it
shouldn't -- so I will make it work again in the next devel branch push.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/
- Re: V+=1 doesn't work if V is a reference to an integer array element, (continued)
- Re: V+=1 doesn't work if V is a reference to an integer array element, Léa Gris, 2021/01/13
- Re: V+=1 doesn't work if V is a reference to an integer array element, Oğuz, 2021/01/14
- Re: V+=1 doesn't work if V is a reference to an integer array element, Chet Ramey, 2021/01/14
- Re: V+=1 doesn't work if V is a reference to an integer array element, Léa Gris, 2021/01/14
- Re: V+=1 doesn't work if V is a reference to an integer array element, Chet Ramey, 2021/01/14
Re: V+=1 doesn't work if V is a reference to an integer array element, Ilkka Virta, 2021/01/13
Re: V+=1 doesn't work if V is a reference to an integer array element, Oğuz, 2021/01/13
Re: V+=1 doesn't work if V is a reference to an integer array element,
Chet Ramey <=