[fpc-devel] Array assignment operator

[Gennady Agranov]

On 11/4/2018 11:24 AM, Sven Barth via fpc-devel wrote:
> Am So., 4. Nov. 2018, 12:23 hat Schindler Karl-Michael 
> <karl-michael.schindler at web.de <mailto:karl-michael.schindler at web.de>> 
> geschrieben:
>
>
>
>     > Am 04.11.2018 um 12:00 schrieb Ben Grasset <operator97 at gmail.com
>     <mailto:operator97 at gmail.com>>:
>     >
>     > From: Ben Grasset <operator97 at gmail.com
>     <mailto:operator97 at gmail.com>>
>     > To: FPC-Devel users discussions <fpc-devel at lists.freepascal.org
>     <mailto:fpc-devel at lists.freepascal.org>>
>     > Subject: Re: Array assignment operator
>     > Message-ID:
>     <CAL4d7FjPfX-ysT6Z3--fhPR9Pts-N47ksFN6m2pHD7SunzwpJg at mail.gmail.com
>     <mailto:CAL4d7FjPfX-ysT6Z3--fhPR9Pts-N47ksFN6m2pHD7SunzwpJg at mail.gmail.com>>
>     > Content-Type: text/plain; charset="utf-8"
>     >
>     > On Sat, Nov 3, 2018 at 4:44 PM Gennady Agranov
>     <gennadyagranov at gmail.com <mailto:gennadyagranov at gmail.com>>
>     > wrote:
>     >
>     >> Hi,
>     >>
>     >> Leaving aside the reason why the MiSchi's solution doesn't work
>     the main
>     >> question is still not answered :)
>     >>
>     >> If you have integer dynamic array "MyArray" is there a way for the
>     >> following statement to compile and work correctly:
>     >>
>     >> MyArray := 5;
>     >>
>     >
>     > Uh, yes? That's what my example showed.
>
>     In your example the length of the array was set to the number and
>     the elements of the array assigned to their index, whereas my
>     intention is to keep the length of the array and fill all elements
>     to the same number.
>
>
> The operator always creates a new array and does not modify the 
> existing one.
> You'd need to abuse a binary operator (e.g. >< or even <=) for this.
>
> Regards,
> Sven
>
>
>
> _______________________________________________
> fpc-devel maillist  -  fpc-devel at lists.freepascal.org
> http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel

I was thinking that type helper might work - e.g. MyArray.SetValue(5) 
and with using properties MyArray.Value := 5

But seems that even simple type helper is not working anymore?

E.g. I was not able to compile example from 
http://wiki.freepascal.org/Helper_types :(

TTypeHelper=  type  helperfor  Integer
   procedure  SetZero;
end;

Thanks,

Gennady



-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freepascal.org/pipermail/fpc-devel/attachments/20181104/e9eaac8d/attachment.html>