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27 lines
661 B
ObjectPascal
27 lines
661 B
ObjectPascal
Program ex20;
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{ Program to demonstrate the TMemoryStream.Truncate method }
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Uses Objects;
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Var L : String;
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P : PString;
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S : PMemoryStream;
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I,InitMem : Longint;
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begin
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initMem:=Memavail;
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L:='Some constant string';
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{ Buffer size of 100 }
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S:=New(PMemoryStream,Init(1000,100));
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Writeln ('Free memory : ',Memavail);
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Writeln ('Writing 100 times "',L,'" to stream.');
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For I:=1 to 100 do
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S^.WriteStr(@L);
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Writeln ('Finished. Free memory : ',Memavail);
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S^.Seek(100);
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S^.Truncate;
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Writeln ('Truncated at byte 100. Free memory : ',Memavail);
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Dispose (S,Done);
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Writeln ('Finished. Lost ',InitMem-Memavail,' Bytes.');
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end. |