On Thu, Apr 14, 2016 at 1:54 AM, Xiao-Yong Jin wrote: > Exactly so. ‘-Ofast -fno-finite-math-only’ gives correct results. > What’s going on here? I don’t expect this has anything to do with NaN or Inf.
pow(-8., 1./3) is nan. And -ffinite-math-only eliminates isfinite check at FloatCell.cc:422. -k