Re: RFR: 8377427: Reduce substring allocations in Color.web(String, double) [v10]

[Andy Goryachev]

On Fri, 20 Feb 2026 01:31:18 GMT, Michael Strauß <mstra...@openjdk.org> wrote:

>> I've added these tests. The reason why 
>> `assertSameDouble(0.19999999999999998335, "0.19999999999999998335")` fails 
>> is because there are more digits in the number than fit in a `long`, and 
>> thus the actual number being parsed is truncated.
>
> Interestingly, the test passes if we use Lemire's algorithm with the 
> truncated significand instead of using the fallback. This might be a 
> coincidence.

so this is basically an invalid test, right?


jshell> var a = 0.19999999999999998335;
a ==> 0.19999999999999998

-------------

PR Review Comment: https://git.openjdk.org/jfx/pull/2069#discussion_r2835404935