Subject: Re: [boost] Boost Trac, random, No-Maintainer?
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2017-10-09 17:17:35
AMDG
On 10/08/2017 08:00 AM, Peter Dimov via Boost wrote:
> James E. King, III wrote:
>
>> For folks who like (potential) compiler optimization bugs:
>> https://svn.boost.org/trac10/ticket/13247
>
> Looking at the source of independent_bits, this jumps out at me:
>
> S = (S << w0) + (u & y0_mask);
>
> and later
>
> S = (S << (w0 + 1)) + (u & y1_mask);
>
> Shifts with a value more than the number of bits are undefined, and
> debugging confirms that w0 is 32 in the failing tests.
>
Fixed in develop.
In Christ,
Steven Watanabe