Hi,
Just FYI, there are more than 10_0000_0000 wierd people in weird Asia who
use weird 10^4 based digit system.
j
On Feb 9, 2012 12:31 AM, "oliver" <oli...@first.in-berlin.de> wrote:
> On Wed, Feb 08, 2012 at 02:50:55PM +0000, David House wrote:
> > On 02/08/2012 02:39 PM, Gabriel Scherer wrote:
> > >People. Please. Tell me you are *not* arguing over underscores in
> > >numeric literals !
> >
> > This is not totally academic. I have come across the exact bug I
> > describe. It was painful.
> [...]
>
>
> Let me guess where the problem might be came from:
>
> When i think of code that uses a value
> 1_000_000
> and you want to change it to a value ten times higher,
> it should be changed to
> 10_000_000
>
>
> Coming from notation that does NOT allow "_" in tzhe numbers,
> it could be done by just adding one "0" at the end of the value:
>
> 1000000
> becomes
> 10000000
> ^
>
> with the "0" added at the end.
>
> But also correct ("more correct" would be:
>
> 1000000
> becomes
> 10000000
> ^
>
> "0" added at the millions.
>
> "Just add one "0" at the end"
>
> Is the edit-habit, which works fine.
>
>
> But when allowing "_" inside numbers,
> but people don't change the "wrong" editing behaviour,
> then allowing the "_" at all means introducing a new kind
> of possible errors.
>
> This could be an argument to throw "_" at all,
> because adding a "0" after the "1" instead of just
> adding a "0" at the end is rarely used behaviour of editing,
> and some people might call it "weird". ;-)
>
> So this argument also could be used to disallow "_" at all.
>
>
> But no, thats not what I want to argue for ;-)
>
>
>
> OK, let's stop that discussion now.
>
> If someone thinks the three-digit-distance-"_" is a feature that makes
> sense,
> a feature wish could be added for OCaml. ;-)
>
>
> Ciao,
> Oliver
>
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