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From: milne@ics.uci.edu (Alastair Milne)
Newsgroups: comp.lang.pascal
Subject: Re: Dynamic arrays in TP5.0
Message-ID: <269EB86C.836@ics.uci.edu>
Date: 14 Jul 90 06:15:08 GMT
References: <1831@krafla.rhi.hi.is> <1990Jul8.200026.29195@mthvax.cs.miami.edu>
Organization: UC Irvine Department of ICS
Lines: 18

In <1990Jul8.200026.29195@mthvax.cs.miami.edu> mathrich@mthvax.cs.miami.edu (Rich Winkel) writes:

>>Begin
>>   GetMem(y, SizeOf(^y));		<----

     OOOPS.  SIZEOF(Y), not of the pointer to it.  SIZEOF(^Y) will return
     a grand 4 bytes, no matter to what it's pointing.

>>   ^y[5]:=12.34;			<----
>>   x :=^y[3];				<----
>>End.

    Close.  Indirect through the pointer *after* referring to it (ie. Y^)
    not before (^Y) and you'll be fine.  The ^Y form is for the declaration,
    saying implicitly "redirect to reach the following type."


    Alastair Milne