[fpc-pascal] Writing floating points to steams
Mark Morgan Lloyd
markMLl.fpc-pascal at telemetry.co.uk
Wed Jan 13 10:06:09 CET 2016
Serguei TARASSOV wrote:
> On 13/01/2016 08:47, fpc-pascal-request at lists.freepascal.org wrote:
>> On 2016-01-12 10:45, Torsten Bonde Christiansen wrote:
>>> Since TStream doesn't have any native WriteFloat/Double and the likes,
>>> some conversion is needed - but what is a good strategy for this?
> Depends on size constraints.
> In the simple case you should convert float to locale-independent string
> value (no spaces, no commas separators) then write it.
> If the size does matter, you may convert float to corresponding byte
> array then write it.
Can I ask a naive question here please: does a binary stream store
endianness anywhere? In other words, is there any indication that
something running on ARM is about to get into trouble by reading
something written by (big-endian) MIPS?
Should writing binary floating point to a stream note that it's IEEE
format, just in case anybody ever tries to process it on a platform that
supports alternatives?
--
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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