Mmm.
At Tue, 08 Jan 2019 16:26:38 +0900 (Tokyo Standard Time), Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp> wrote in
<20190108.162638.106314087.horiguchi.kyotaro@lab.ntt.co.jp>
> FWIW, I got the following result on my environment. It seems
> different enough if this holds on all supported platforms, though
> there still is a case where the result of a sequence of
> arithmetics makes false match.
>
> x = 0.33333333333333331
> d = 1.000000e+30 match
> d = 1.000000e+31: 0.000000 match
Of course the "match" in the last line above is a mistake of "NOT
match".
--
Kyotaro Horiguchi
NTT Open Source Software Center