[Full-disclosure] Firefox 22.214.171.124 has a very serious calculation bug
jimbysharp at gmail.com
Fri Sep 28 20:02:41 BST 2007
I don't get the same from C-style double arithmetics. Could you
provide a sample code that you believe should show the same behavior?
On 9/28/07, Michal Zalewski <lcamtuf at dione.cc> wrote:
> On Fri, 28 Sep 2007, carl hardwick wrote:
> > Firefox 126.96.36.199 result: 5.1000000000000005 (WRONG!)
> This is a proper behavior of IEEE 754 64-bit double float, which, IIRC, is
> precisely what ECMA standard mandates.
> You will get the same from any C-style 'double' arithmetics.
> > Internet Explorer 7 result: 5.1 (OK)
> They use a marginally higher precision. Now try 5.002-.001 - chances are,
> you will get 5.00999...
> - and nowhere actually delivers - arbitrary GMP-style precision.
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