Question

Delphi BUG? On Trunc function?!?!

Asked by: VSF

I think I've found a bug on Delphis Trunc function, take a look, add this code to a button:

procedure TForm1.Button1Click(Sender: TObject);
begin
memo1.Lines.add(floattostr(9.97*100));
memo1.Lines.add(floattostr(trunc(9.97*100)));
memo1.Lines.add(floattostr(trunc(9.97*100)/100));
memo1.Lines.add('---');
memo1.Lines.add(floattostr(9.98*100));
memo1.Lines.add(floattostr(trunc(9.98*100)));//BUG is Here
memo1.Lines.add(floattostr(trunc(9.98*100)/100));
memo1.Lines.add('---');
memo1.Lines.add(floattostr(9.99*100));
memo1.Lines.add(floattostr(trunc(9.99*100)));
memo1.Lines.add(floattostr(trunc(9.99*100)/100));
end;

On that line the result of trunc is not correct!
Trunc trancates a float to the nearest integer, in that case it should be truncated to 998 and not 997 as it is on my pc!
On the first and last case (9.97 and 9.99) trunc works fine, but there is something wrong on the 9.98... can someone explain it to me?!?!

VSF
www.victory.hpg.com.br
victory@e-net.com.br

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Asked On
2002-01-14 at 09:10:30ID20255024
Tags

floattostr

,

delphi

,

trunc

Topic

Delphi Programming

Participating Experts
4
Points
0
Comments
12

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