GENTLE REMINDER of RFR CSR JDK-8202555: Double.toString(double) sometimes produces incorrect results
raffaello.giulietti at gmail.com
Fri Dec 27 22:25:07 UTC 2019
On 2019-12-27 22:16, Andrew Haley wrote:
> On 12/27/19 11:43 AM, Raffaello Giulietti wrote:
>> The latest patches of  have been submitted more than 8 months ago
>> I'm still looking for motivated reviewers.
> I am sorely aware that we have not performed well. All I can say in our
> defence is that we have looked at it, and a thorough review is hard,
> and there is significant risk touching this code. I know that Andrew
> Dinn would love to review it but he keeps getting dragged away to do
> other work. We have not forgotten you.
Hi Andrew & Andrew
thanks for your kind reply.
I'm aware that a review is harder than usual because of the size of the
writing . Of course, I can justify and explain every single line of
the code if so requested. Most of it is based on details in the writing
and is often a mere translation in Java.
To my knowledge, the algorithm is quite novel, so I cannot simply refer
to existing, well-established and well-known work (except for some
limited aspects on Adams' Ryu work , which are pretty coincidental).
Brain Burkhalter (Oracle) read the writing until section 8 included and
stopped with section 9 which discusses the efficient implementation. I
don't know if he read further in the meantime.
Except in answering specific questions about my contribution, I guess I
can do very little to help those interested in finding the time to dive
into the details. My estimate is that it takes between 0.5 and 1 day to
understand the paper and less than a couple of hours to check that the
code is a direct translation in Java. As usual, YMMV.
 Adams, "Ryu: Fast Float-to-String Conversion", PLDI, 2018
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