[fpc-pascal] For .. in .. loops with sets and valued enums

[Bernd Oppolzer]

Maybe types should be forbidden at this place completely.

Look at this:


1.) with subrg type - works ok !!

program testin;

type subrg = 1..10;

var i: integer;

begin
   for i in  subrg  do begin
     writeln (i)
   end
end.


2.) with subrg type in in-expression - gives syntax error

program testin;

var i: integer;

begin
   for i in  1.. 10 do begin
     writeln (i)
   end
end.


3.) with set constant in in-expression - works ok

program testin;

var i: integer;

begin
   for i in [1.. 10] do begin
     writeln (i)
   end
end.


Only the 3rd example should be supported, IMO.

Kind regards

Bernd



Am 20.06.2015 um 14:03 schrieb Michael Van Canneyt:
>
>
> On Sat, 20 Jun 2015, Jonas Maebe wrote:
>
>> On 20/06/15 12:01, Michael Van Canneyt wrote:
>>>
>>>
>>> On Sat, 20 Jun 2015, Jonas Maebe wrote:
>>>
>>>> On 20/06/15 11:41, Michael Van Canneyt wrote:
>>>>> But it is a bug that the compiler does not give an error for the set
>>>>> type. Please report it.
>>>>
>>>> Should it work with any set types at all? (I don't mean set variables,
>>>> but set types) Or even with any type? It seems very much like 
>>>> something
>>>> that was accidentally introduced, like what was reverted with
>>>> http://wiki.freepascal.org/User_Changes_2.6.0#.3COrdinal.3E_in_.3CSet_type.3E_is_now_forbidden 
>>>>
>>>
>>> It should definitely work with sets, that was explicitly asked (I am
>>> sure, because I asked). I use it in my code.
>>
>> Again: set *variables* or set *types*?
>
> Ah sorry, I misunderstood your remark. Variables.
> I don't see the point of allowing it on a set type. You can just as 
> well use the underlying enum.
>
> Michael.
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