Re: inconsistent exit status of ((count++))

[Stefano Lattarini]

At Friday 30 July 2010, Greg Wooledge wrote:
> On Fri, Jul 30, 2010 at 09:49:22PM +0200, Stefano Lattarini wrote:
> > But then, maybe an exit status of `2' instead of `1' in case of
> > errors in ((...)) would be helpful -- currently the exit status
> > is still `1'
> > 
> > also if a real error is present:
> >   $ ((1+)); echo \$?=$?
> >   bash: ((: 1+: syntax error: operand expected (error token is
> >   "+") $?=1
> 
> Most syntax errors cause the shell to abort right then and there,
> when in non-interactive mode.  Syntax errors inside an arithmetic
> context don't, which is already weird.  If I were going to ask for
> a change,
Well, I wasn't really advocating a change here, since I've never had
problems with the current behaviour; I was just pointing out that
it is suboptimal.

> it would be to make them crash the script instead of
> letting bash continue.
This makes sense; now I think that, if there's going to be a change, 
it should be on the lines proposed by you.

Regards,
  Stefano