Hello,
Ok for the records for internal calculations. But sometimes, records are used for reading/writing
structured files. Does "packed" in "packed array" and "packed record" always forbid the compiler to play
with alignments ?
Kindest regards, Ched'
Le 29.03.23 à 21:07, Jonas Maebe via fpc-pascal a écrit :
On 29/03/2023 16:00, Matias Ezequiel Vara Larsen via fpc-pascal wrote:
So if I have a type like:
test = record
r: DWord;
s: Word;
end;
Then, I define the variable `nada` as an array of `test` type:
var
nada: array[0..2] of test;
Is the `@nada[1].r` element aligned to 4-bytes?
Records always get padded to a multiple of their internal alignment requirement. Unless you're on a
system where the default packrecords value is 2 (msdos-i8086 has that probably), the above record's
internal field alignment is 4 and hence its size will also be padded to a multiple of 4.
Jonas
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