[fpc-devel] Typed addresses by default
Vincent Snijders
vsnijders at quicknet.nl
Thu Oct 5 15:11:47 CEST 2006
Micha Nelissen wrote:
> Ivo Steinmann wrote:
>
>> Well, it's a good idea to enable typed addresses by default, but I
>> have got one problem with that. The pointer to an array of a type
>> should be allowed to assign to the pointer of the same type.
>>
>> Example
>>
>> T: array[-10..10] of Integer;
>> P: PInteger;
>>
>> I request that "P := @T;" should be allowed, because a pointer type in
>> objfpc mode are also treated as pointer to an array of that type, that
>> means P[...] is allways allowed also.
>
>
> Just a note, there will be 3 ways to write the same thing then:
>
> P := T;
This only compiles without errors if Low(T)=0.
> P := @T;
> P := @T[Low(T)];
>
> A bit odd, no ? Although in all cases it's quite clear what is meant,
> but I don't know if this "scales" to more complex expressions ?
Vincent
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