Thanks, this works, sort of. But does not meet my needs, I will pass in either an int value or an object, but Variant is not compatible with TObject.
Alternatively, this also does NOT work: array [0..1] of const; no matter it is a type definition or used as function parameter. This is a trivial problem, I can just go with array of const, I am just curious if pascal can do this, because it will make the function definition more strict and my code cleaner. Regards, Xiangrong 2013/9/24 Michael Van Canneyt <mich...@freepascal.org> > > > On Tue, 24 Sep 2013, Xiangrong Fang wrote: > > Hi There, >> >> If you declare this: >> >> procedure proc(param: array of const); >> >> Then you can pass any type of varaible to param, however, only in an >> array, such as proc([1, 2]); >> >> Is it possible to achieve the effect of the code below (which is wrong): >> >> procedure proc(p1: const; p2: const); >> >> So that: 1) p1 and p2 is translated by the compiler to TVarRec inside the >> function; 2) I do not need to pass an array to the function, in another >> word, the number of params >> for the procedure is *fixed*, but the *type* of each param is not. >> > > Use variants: > > Procedure Proc (Var A,B : variant); > > Michael. > > ______________________________**_________________ > fpc-pascal maillist - > fpc-pascal@lists.freepascal.**org<fpc-pascal@lists.freepascal.org> > http://lists.freepascal.org/**mailman/listinfo/fpc-pascal<http://lists.freepascal.org/mailman/listinfo/fpc-pascal> >
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