On Wed, Jan 13, 2021 at 08:28:44PM +0200, Ilkka Virta wrote: > On Wed, Jan 13, 2021 at 7:49 PM Greg Wooledge <wool...@eeg.ccf.org> wrote: > > On Wed, Jan 13, 2021 at 07:00:42PM +0200, Oğuz wrote: > > > $ declare -n b=a[0] > > > > I can't see any documentation that supports the idea that this should > > be allowed in the first place. > > It's arguably useful though, and works in 4.4 (with -i or not):
Lots of things "could be useful" if only they worked, but they don't work, so you don't do them. The fact that this undocumented, unsupported hack "appeared to work" with certain inputs in bash 4.4 is just an unfortunate event, unless Chet decides to make it an actual supported feature.
