> Strings are not the point the point is what does one do in Pascal to cast types
> into strange things as needed on the fly and what can Pascal do about variable
> number of arguments and variable arity.

That's the wrong type of question. Programming language exist to solve 
real-world problems, not to write specific programming constructs in. 
How do you write a Curryer function, an Ada-style rendezvous, or a 
C++-style template in C? Answer: you can't (and you probably don't need 
to). Likewise for the constructs you ask: in Pascal you would not use 
such constructs, you (or rather, someone else..) would solve the problem 
at hand in a different way.

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Wouter van Ooijen

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