TCollection.Free

Free item from collection, calling it's destructor.

Declaration

Source position: objects.pp line 411

Description

Free Deletes Item from the collection, and calls the destructor Done of the object.

Errors

If the Item is not in the collection, Error will be called with coIndexError.

See also

Example

Program ex30;

{ Program to demonstrate the TCollection.Free method }

Uses Objects,MyObject; { For TMyObject definition and registration }

Var C : PCollection;
    M : PMyObject;
    I,InitMem : Longint;

begin
  Randomize;
  C:=New(PCollection,Init(120,10));
  InitMem:=Memavail;
  Writeln ('Initial memory : ',InitMem);
  For I:=1 to 100 do
    begin
    M:=New(PMyObject,Init);
    M^.SetField(I-1);
    C^.Insert(M);
    end;
  Writeln ('Added 100 Items. Memory available : ',Memavail);
  Write ('Lost : ',Initmem-Memavail,' bytes.');
  Write   ('(Should be 100*',SizeOF(TMyObject));
  Writeln ('=',100*SizeOf(TMyObject),')');
  With C^ do
    While Count>0 do Free(At(Count-1));
  Writeln ('Freed all objects. Memory available : ',Memavail);
  Writeln ('Lost : ',Initmem-Memavail,' bytes.');
  Dispose(C,Done);
end.