Hello mohamed hamza, Du schriebst am Sun, 23 May 2021 09:02:31 +0000:
> Many thanks for your help. But this does not explain why we can > not sum integer field into a currency VAR with Martin's sumField > Procedure? Maybe it does, as his if statement seems to be directed toward the distinction between integer and real (floating point) data types. True integer values are handled differently from floats, and this may be done because of the way the compiler handles parameter passing in these cases. It might (in facr, it _has to_) implicitely coerce (convert) an integer into a floating point value, while a real floating point value could probably be passed directly. One would have to inspect the innards of the code handling the different cases, or even the compiler output. I didn't research this deeply, though. The compiler's feature to discern functions by their parameter list - overloded functions and procedures - allows many neat things, but there are limitations to this, and your case seems to be a good example for such a limitation:.So you might simply use that feature, declaring TWO different overloaded sum functions, where one of them takes an integer and the other one a currency value as the pertinent parameter. You might just as well get fancy and declare other variants for any other data type you want. You just _have to make sure_ that the compiler can _always_ recognize the true type of all of the function's parameters. -- (Weitergabe von Adressdaten, Telefonnummern u.ä. ohne Zustimmung nicht gestattet, ebenso Zusendung von Werbung oder ähnlichem) ----------------------------------------------------------- Mit freundlichen Grüßen, S. Schicktanz ----------------------------------------------------------- _______________________________________________ mseide-msegui-talk mailing list mseide-msegui-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mseide-msegui-talk
