From: Joe Van Dyk <joevandyk@...>
Date: 2005-12-13T14:09:39+09:00
Subject: Re: Using Float For Currency

On 12/12/05, mental@rydia.net <mental@rydia.net> wrote:
> Quoting Hunter's Lists <lists@lastonepicked.com>:
>
> > Howdy,
> >
> > I have some methods that manipulate floats that represent a
> > currency amount.
> >
> > I often end up with more precision than I need, i.e.: $9.756.
> >
> > What is the best way to scale that to 9.76?
>
> If you're doing anything that matters, don't use floats for
> currency.  There are a lot of really nasty subtle issues that will
> lose money between the cracks.
>
> Usually you want a specialized currency type which uses
> fixed-precision arithmetic.

What cracks can I lose money through?