Can I use Pointer as an Array in pascal like C++?

Just adding a little to AvonWyss's comment:

The delphi runtime declares pointers to a couple of similar arrays (ex: PByteArray, PCharArray) that are often used, in D2 & D3 in particular, to approximate dynamicaly resizable arrays. They're declared like so (I don't have the source handy, but if my implementation isn't detail perfect, the concept stands):

TByteArray = array[0..32767] of byte;
PByteArray - ^TByteArray;

so you can do this:

var
 bytes : PByteArray;
 index : integer;
begin
 getMem(bytes,1000);//now we've got 0..999 elements
 index := 999;
 bytes[index] := random(256);//bytes[999] is now in 0..255
 dispose(bytes);


So you can extend this like so:

RMyRec = record
 fooStr : array[0..10] of char;
 fooInt : integer;
end;
TMyRecArray = array[0..some_big_number] of RMyRec;
PMyRecArray = ^TMyRecArray;

var
 recs : PRecArray;
 ix : integer;
begin
 getMem(recs,sizeOf(RMyRec)*100);//For an array of 0..99 Records
 

GL
Mike

gardenia:
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geobul
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