Re: test -v for array does not work as documented

From	pepa65 <solusos@passchier.net>
Newsgroups	gnu.bash.bug
Subject	Re: test -v for array does not work as documented
Date	2020-02-19 23:52 +0700
Message-ID	<mailman.1178.1582131194.2412.bug-bash@gnu.org> (permalink)
References	<w6ga75e23e8.fsf@kph.uni-mainz.de> <c8e8a1f7-26f3-a189-8f02-562632597849@case.edu> <umu9ek0u1@kph.uni-mainz.de> <58c60b7b-cad9-df7a-7871-e739f23c060c@passchier.net>

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On 19/02/2020 23.18, Ulrich Mueller wrote:
> So, is there any syntax that allows to test if a value has been assigned
> to the array variable? Especially, to distinguish VARNAME=() (empty
> array) from VARNAME being unset?

Not `test` as such as we have just learned, but the returncode of
`declare -p VARNAME` will be different for VARNAME being unset or being
set to `()` or `""`. Add `&>/dev/null` to taste..!

Peter

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Re: test -v for array does not work as documented pepa65 <solusos@passchier.net> - 2020-02-19 23:52 +0700

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