Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > gnu.bash.bug > #14999
| From | Bize Ma <binaryzebra@gmail.com> |
|---|---|
| Newsgroups | gnu.bash.bug |
| Subject | Re: Error on arithmetic evaluation of `~0`. |
| Date | 2018-12-29 01:26 -0400 |
| Message-ID | <mailman.6495.1546062259.1284.bug-bash@gnu.org> (permalink) |
| References | <CAFra36gW8Csu-84oRLV7QsR7PbiMYq6g7WnMktjfnrSdTys38g@mail.gmail.com> <25e8adf0-96d5-1e38-faea-e7620ba3f846@case.edu> <CAFra36gzzbJLjqt9OYtJUuJara3KR2+ew-Gj3y2mA2L4X8CRyw@mail.gmail.com> <fc279c3d-35f8-1afa-e515-bfcf2f3bed44@case.edu> |
Chet Ramey (<chet.ramey@case.edu>) wrote:
> On 12/23/18 12:01 PM, Bize Ma wrote:
>
{…}
> > Both command line above should have printed "hello".
>
> No. 0 is the only valid subscript for a non-array variable. The difference
> between bash and other shells that implement this feature is that bash
> warns about negative subscripts.
>
If you say so: fine for me.
It still irks me a little that a `${var[-1]}` isn't the "last value"
(sometimes!, consistency?).
I haven't seen that documented anywhere, though.
Back to gnu.bash.bug | Previous | Next | Find similar | Unroll thread
Re: Error on arithmetic evaluation of `~0`. Bize Ma <binaryzebra@gmail.com> - 2018-12-29 01:26 -0400
csiph-web