Hi Hackers,
I noticed that many functions take "Datum *" parameters while they don't
update the data. So I created this patch to change "Datum *" to "const
Datum *" wherever possible, which should improve type safety and make the
interfaces clearer about their intent, also helps the compiler catch
accidental modifications.
Best regards,
Chao Li
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HighGo Software Co., Ltd.
https://www.highgo.com/