On 07/07/14 13:13, Andrea Mauri wrote:
> Dear all,
>
> using formatfloat function I got an unexpected behaviour.
> If I round negative numbers I can get as result of formatfloat = '-0'.
> I think it is a bug, since -0 has no meaning, zero is zero.
> How can I make a workaround?
> e.g.
> label1.Caption:= FormatFloat('0.###', strtofloat(edit1.Text));
> if in edit1.text I have -0.000001 I got -0 as result while I would like to
> get 0.
>
> Is it a bug, what can I do?
Minus-zero is a recognized computational 'feature' of floats on computers, not
a bug (AFAIK).
The float variable value of StrToFloat(edit1.text) is still -0.000001 though;
(try assigning it to a float type variable and watch it)
Does the same happen if you Round() it to integer?
e.g.
label1.caption := Format('%d',[Round(strtofloat(edit1.text))]);
(I know this isn't what you're after
>
> Best regards,
> Andrea Mauri
>
-L.
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