ABC: Field data types being passed as any 1998-06-29 -- Jim Katz Newsgroups: topspeed.products.c4
> Just wanted to know if there is a way to determine what type a
> variable has been passed to an untyped variable parameter (either by
> value ("?") or by reference ("*?")). Ideally, I'd like to make a
> function that tests this without "bit fiddling".. that is, it "asks"
> Clarion for the original type. Is there something like that either as a
> Clarion command, API or...? All opinions greatly appreciated.
If its a field within a file, you can use the PROP:Type syntax to determine
the type. Unfortunately this property has not been extended, AFAIK, to all
variables.. Here is some code off the top of my head, (not tested)
MyProc PROCEDURE(*? PV,*File MyFile)
PassVar ANY
FieldPos BYTE
PassType STRING(8)
Code
PassVar &= PV
FieldPos = WHERE(MyFile.Record,PassVar)
PassType = MyFile{PROP:Type,FieldPos)
HTH
--
Jim Katz
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