On 5/8/22 06:54, Victor Williams Stafusa da Silva wrote:
If StrictMath is still needed and could produce different results than Math in some modern hardware, then by the javadocs, it seems to imply that Math should always delegate to StrictMath and never the other way around. Why is it not always the case? I think that the answer is simply because the StrictMath class was largely left unchanged and that delegating in one way or in the other could then produce a difference when the strictfp modifier was there, but is there a better reason than that?
Some targets (x86, in particular) have intrinsics (log, trig) that are faster than StrictMath and also more accurate. StrictMath is not about accuracy, but cross-architecture down-to-the-last bit reproducibility. Whether we still need that reproducibility is, I suppose, something for debate. -- Andrew Haley (he/him) Java Platform Lead Engineer Red Hat UK Ltd. <https://www.redhat.com> https://keybase.io/andrewhaley EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671
