Sven Barth wrote:
Am 10.10.2012 12:02, schrieb dhkblas...@zeelandnet.nl:
Does FPC ensure the same memory alignment for records and objects over
different platforms? If I want to be sure to have the same alignment
must I use packed (with possibly some aligning assigned) records instead
in combination with data types that are guaranteed to be of the same
size over the different platforms (eg byte, word, single) ? Or do
unpacked records behave the same over different platforms?
Please note that you might also need to take care of different endianess
(big endian vs. little endian) if you want to transfer such record data
(e.g. through files) between systems with different endianess. In that
case you'll need to write the record field by field and convert the
endianess in one of the two cases...
I've had some success defining a custom := operator for this.
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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