I agree with you that run-time checking is the next good thing to do, but I think you missed the point:

I can't assure that I don't get erroneously the scalar of an array, without excluding constants!!!

Neither at compile-time nor at run-time.

Please try to give me a function that only accepts plain scalar values with "good old preconditions" and I'll be happy! ¹

BTW: I'm not limiting myself to prototypes, I'm just trying to widen my possibilities...

Cheers Rolf

(1) well maybe with some caller parsing it's somehow feasible...

UPDATE: I appended a practical use case with join to the startpost to make the problem less theoretical and easier understandable. Please try to give me a sub "newjoin" which croaks about this error!

In reply to Re^4: Prototype for constant items??? by LanX
in thread Prototype for constant items??? by LanX

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