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Groups > gnu.bash.bug > #11948

Re: An array variable created by export/readonly builtins inside a function becomes a locale variable to that function unexpectedly

From Chet Ramey <chet.ramey@case.edu>
Newsgroups gnu.bash.bug
Subject Re: An array variable created by export/readonly builtins inside a function becomes a locale variable to that function unexpectedly
Date 2015-12-05 15:18 -0500
Organization ITS, Case Western Reserve University
Message-ID <mailman.1467.1449346701.31583.bug-bash@gnu.org> (permalink)
References <70266BC6-C65A-4D95-B7C1-2F63F3C45DEF@qq.com>

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On 11/27/15 10:18 PM, ziyunfei wrote:
> $ ksh -c 'foo() { readonly a=(1);echo a=$a; }; foo; echo a=$a'
> a=1
> a=1
> $ bash -c 'foo() { readonly a=(1);echo a=$a; }; foo; echo a=$a' # a becomes a local variable
> a=1
> a=

Thanks for the report.  I agree that this is a bug.  `readonly' and
`export' should not create local variables when invoked within a function;
only declare/local/typeset should create local variables.

This will be fixed in the next release of bash.

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

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Re: An array variable created by export/readonly builtins inside a function becomes a locale variable to that function unexpectedly Chet Ramey <chet.ramey@case.edu> - 2015-12-05 15:18 -0500

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