Re: What is correct syntax to check for empty array? behavior diffs between 4.3 and 4.4

[L A Walsh]

Greg Wooledge wrote:
> On Thu, Jan 26, 2017 at 01:11:25PM -0800, L A Walsh wrote:
>
>   
> > > Subject: Re: What is correct syntax to check for empty array?
> > >       
>
> The number of elements is 0 if the array is empty.  So you would test
> whether ${#array[@]} is 0.
>
>   
> > > set -u                      # now add an undefined check
> > >       
>
> Now you've changed the question.  You're no longer asking whether an
> array is empty.  You're asking whether some legacy crap from 197x will
> make your shell script abort.
>
> Answer: who the hell cares.  Stop doing it.
>   
---
get a life.

I'll stop doing it when it is removed.

Otherwise, I'll see your answer as being "I don't know, so let's
call the user's choices 'crap'" -- i.e. not at all useful.

I was really tempted to add:
(opinions on use of "-u" are not being solicited) to my original
note, but I didn't want to be presume someone would be so
unhelpful... 

If you don't think it is working correctly, SUBMIT A BUG.
Otherwise, stop telling people to not use bash's *documented*
features.