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  1. Hello all, I encountered a weird behaviour of FillChar today. The Demo below illustrates the bug. program Project1; {$APPTYPE CONSOLE} {$R *.res} uses SysUtils; procedure PrintArray(const ar: array of UInt32); var i: Int32; begin for i := Low(ar) to High(ar) do begin WriteLn(ar[i]); end; end; var a: array [0 .. 5] of UInt32; begin try { TODO -oUser -cConsole Main : Insert code here } FillChar(a, SizeOf(a), UInt32(4)); PrintArray(a); ReadLn; except on E: Exception do WriteLn(E.ClassName, ': ', E.Message); end; end. I expected but got the strange values in the image below. Any idea what's wrong?