OpenEuphoria

RE: error?

• Posted by rforno at tutopia.com Oct 26, 2002
• 434 views

Why non-standard? Please see the following:

x[3..4] = 2 element-sequence.
x[3..3] = 1 element sequence.
x[3..2] = 0 element-sequence.
x[3..1] = -1 element-sequence = error.

----- Original Message -----
From: Kat <kat at kogeijin.com>
Subject: Re: error?


>
> On 25 Oct 2002, at 23:32, jbrown105 at speedymail.org wrote:
>
> >
> > On  0, Kat <kat at kogeijin.com> wrote:
> > >
> > > Ok, if
> > > decimalcount = 1
> > > (the debug screen says it is 1)
> > > then shouldn't this line crash?:
> > >
> > >    resultnum = resultnum[1..decimalcount-1] & "." &
> > > resultnum[decimalcount..length(resultnum)]
> > >
> > > since it is the same as:
> > > resultnum[1..0]
> > > ?
> > >
> > > Kat
> > >
> >
> > No.
> >
> > resultnum[1..0] is the empty sequence {}
>
> I can't help but consider that non-standard to Eu's way. It's one atom
long, it
> should be one atom returned. Or since Rob doesn't want to return reversed
> sequences if we do
>
> s = s[length(s)..1]
>
> then s[1..0] should crash as a reversed sequence of as a "upper index is
> less than 1" error. Reliable crashing is as important as reliable
non-crashing,
> isn't it?
>
> Kat
>
>
>
>