Hi,

The 17 is the maximum number of digits needed to represent uniquely
the double (see [ruby-core:30145] and [ruby-core:30163]).

On Thu, Aug 25, 2011 at 9:49 AM, Nobuyoshi Nakada <nobu / ruby-lang.org> wrote:
>
> Issue #5227 has been updated by Nobuyoshi Nakada.
>
>
> A magic number 17 is DBL_DIG+2?
> T