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Re: param expansion with single-character special vars in the environmen


From: Chet Ramey
Subject: Re: param expansion with single-character special vars in the environment
Date: Mon, 2 May 2016 15:08:44 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:45.0) Gecko/20100101 Thunderbird/45.0

On 5/2/16 2:59 PM, Grisha Levit wrote:
> 
> On Mon, May 2, 2016 at 2:48 PM, Chet Ramey <address@hidden
> <mailto:address@hidden>> wrote:
> 
>     and this one throws away the nameref attribute:
> 
>     typeset -n foo ; typeset -i foo ; foo=7*6 ; typeset -p foo
> 
> 
> I think it's important to note that the nameref attribute is thrown away at
> the `typeset -i foo' step, which makes some sense since `typeset -n -i'
> does not seem to be valid in ksh.

Yes.  It's just that it's undocumented and done without a warning.


-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/



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