> On Mar 30, 2019, at 9:10 AM, Jonas Maebe <jo...@freepascal.org> wrote:
>
> FPC always aligns data to its alignment as specified by the platform ABI.
> {$align x} can be used to limit this alignment to a lower number. It cannot
> be used to increase it.
This caused us quite a bit of problems with the Metal framework because we
needed padding fields also. Is this something that could be added or would it
be a disaster to add padding to record fields? It sounds like there is already
a mechanism we could extend but I’m not sure.
>
>> Why not use a similar directive for array alignment? That would solve the
>> problem I discovered with insert/concat.
>> {$push}
>> {$align-array 4096}
>> type
>> TIntArray = array of integer;
>> {$pop}
>
> Arrays are aligned to the alignment requirements of their components. Again,
> a vector type would solve this, since vectors have their own alignment
> requirements in the ABIs.
If you saw the original bug report we’re trying to make a custom alignment (of
4k) for the Metal framework. I propose the syntax because it solves the problem
of how to assign alignment and there is a precedent for it (i.e. $align).
Can you give some examples of the vector type? I don’t exactly know what you
guys are referring to.
Regards,
Ryan Joseph
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