[fpc-pascal] Implementation of variant records

Ralf Quint freedos.la at gmail.com
Fri Jul 5 13:53:21 CEST 2019

On 7/5/2019 3:27 AM, Marco van de Voort wrote:
> Op 2019-07-05 om 11:49 schreef Bernd Oppolzer:
>> IMO, the variants in a variant record should always overlay correctly 
>> (like unions in C),
>> so the variant part should start at offset 32 in this case, and this 
>> is where all three
>> variants should start.
> This is not a guarantee case in the Pascal language, afaik many old 
> compilers don't even try, but make fields sequential.
> As soon as you have expections of overlaying, you are dialect and 
> architecture specific. 

Shouldn't a PACKED Record guarantee that values are aligned at the byte 


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