RFR: 8367603: Optimize exact division in BigDecimal [v25]

[Raffaello Giulietti]

On Sun, 16 Nov 2025 19:09:43 GMT, fabioromano1 <duke at openjdk.org> wrote:

>> A formula to lower the overestimate for the precision of an exact quotient, without introducing too expensive operations of division on numerator and denominator.
>
> fabioromano1 has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Removed trailing whitespaces
>  - Added further tests

Marked as reviewed by rgiulietti (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/27271#pullrequestreview-3473650816