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    Procedure CleanString(Var s:String);
    begin
      fillChar(s,sizeof(s),0);
    end;
    { I think that I already posted this form once, but here it is again...
     This is the best way, For what the original poster wanted it for- to
     clear out a String to Write to a File.  Method #1 above will overfill
     any subranged String, yours only clears out the current size of the
     String (ie if you had s:String; s := 'a'; then your Procedure would
     only fill the first Character.  The last version merely fills the
     entire String no matter what the size of it is.
    -Brian Pape
    }

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