On Wednesday, 23 October 2013 at 17:47:54 UTC, Luís Marques wrote: > Is the only different bit not the quiet/signaling NaN flag? Why > do you say that the payload is different? Because I am terrible at arithmetic, nevermind :) If it is exactly q/s flag, IEEE spec yummies are even more likely. Not like bit copying via floating assignment is a good idea anyway.