Hi,
Στις 20/2/2019 4:46 μ.μ., ο Paul van Helden έγραψε:
On Wed, Feb 20, 2019 at 4:35 PM Dimitrios Chr. Ioannidis via fpc-devel
<fpc-devel@lists.freepascal.org
<mailto:fpc-devel@lists.freepascal.org>> wrote:
Even if declaring variables as close as possible to where the
variable will be used ( debugging wise not readability wise )
leads to more correct code, the problem is to avoid the temptation
to use them in other places too.
Variables declared within a begin...end cannot be used elsewhere.
(E.g. for var I:=0 to .. won't let you use I after the loop).
AFAIK, one of Pascal's primary design goals is to won't let you
shoot yourself in the foot, and IMO that feature is not in that
direction.
I'd like to see an example how this is less safe.
Well one of the answer in the Cantu blog has this ( which I changed to
lets say a "real world" relative big function ) :
var arr: array...
function Fuckup: boolean;
var I: Integer;
begin
<....> 20 lines of code
for var I := Low(arr) to High(arr) do
if arr[I]..... then
break;
<....> 20 lines of code
Result := (I <= High(arr));
end;
regards,
--
Dimitrios Chr. Ioannidis
_______________________________________________
fpc-devel maillist - fpc-devel@lists.freepascal.org
http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
