[Bug libquadmath/114140] different results for std::fmin/std::fmax and quadmath fminq/fmaxq if one argument=signaling_NaN

[g.peterhoff--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114140

--- Comment #13 from g.peterh...@t-online.de ---
> The cppreference page is wrong.
But then *all* of your implementations for fmin/fmax (float, double, long
double, std::floatN_t) would be wrong, because they give exactly the results as
described on cppreference.
Is this really the case (which I don't believe)? And if so, that still doesn't
solve the original problem: std::math-functions and quadmath-functions *must*
of course return the same results - no matter which implementation is correct.