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From: storm@cs.mcgill.ca (Marc WANDSCHNEIDER)
Newsgroups: comp.lang.pascal
Subject: Untyped Parameters
Summary: Untyped paramters assigned to typed variables
Message-ID: <1991Mar4.043821.4742@cs.mcgill.ca>
Date: 4 Mar 91 04:38:21 GMT
Sender: storm@cs.mcgill.ca (Marc WANDSCHNEIDER)
Organization: SOCS, McGill University, Montreal, Canada
Lines: 39


As far as I've been led to believe, when one doesn't exactly know what the
incoming paramter in a procedure/function is, you can just do the following:

     procedure hooblah(var x);
     var y:  integer absolute x;
         z:  real absolute x;
    begin
       etc....

Using this, the parameter passed can be passed to either an integer or a real
number.

However, a few days ago, I ran across this in a procedure that convers 
a decimal number into a HEX number...


    Function DectoHex (i:Word): St4;  {st4 is string[4] declared already}
    var HexStr: string[8];
        b : array[1..2] of BYTE ABSOLUTE i;
        bt: byte;
    begin
        etc...

i has already been declared as a typed variable.  How is it that it is 
being used here as an UNTYPED variable..?

Any help on this would dearly help my already overloaded brain.

Thanks yea.

./*-

 
-- 
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storm@cs.mcgill.ca         McGill University           It's 11pm, do YOU
Marc Wandschneider         Montreal, CANADA            know what time it is?
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