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Re: Strange re-initialization of array. Bug or feature?


From: Chet Ramey
Subject: Re: Strange re-initialization of array. Bug or feature?
Date: Fri, 30 Nov 2012 19:43:47 -0500
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:16.0) Gecko/20121026 Thunderbird/16.0.2

On 11/27/12 7:37 PM, Tim Friske wrote:

> If sourced at least twice from another script I get the following output
> printed:
> 
> AAA
> BBB
> declare -A ONCE='()'
> CCC
> declare -A ONCE='([std.bash]="1" )'
> BBB
> declare -Ai ONCE='()'
> CCC
> declare -Ai ONCE='([std.bash]="1" )'
> 
> If I remove the initialization "=()" from "declare -gAi ONCE" I get the
> following output printed:
> 
> AAA
> BBB
> declare -Ai ONCE='()'
> CCC
> declare -Ai ONCE='([std.bash]="1" )'
> BBB
> declare -Ai ONCE='([std.bash]="1" )'
> 
> The "declare -gAi ONCE=()" seems to get executed every time although
> surrounded by "[[ ! -v ONCE ]]" whereas "echo AAA" within the same if-block
> only the first time.
> 
> Is this a bug or feature?

This is the same bug I described earlier today, with the same fix.

Chet
-- 
``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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