in reply to Re^4: XS, C doubles and -Duselongdouble
in thread XS, C doubles and -Duselongdouble

I found to be rather interesting, somewhat amusing, and a little disturbing.

Indeed. One of the comments suggests that the mapping of real10 to real8 is done "(to cheat on benchmarks)", but I am under the impression that the (Intel) floating point processor does all it computations in 80-bits, even if the results are truncated when they are stored to ram.

If that's the case, and I am pretty sure that I read that on a reliable source which I will attempt to relocate, then there would be no performance advantage in not storing the 80-bits after the computation?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
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