https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112449
--- Comment #6 from post+gcc at ralfj dot de --- Hm, OTOH the C standard says > The expressions 1×x, x/1, and x are equivalent (on IEC 60559 machines, among others). So, it seems like when they say "The + ,- , * , and / operators provide the IEC 60559 add, subtract, multiply, and divide operations.", they don't quite mean that. This seems internally inconsistent in the C standard, since C also permits `pow(1, sNaN)` to behave different from `pow(1, qNaN)` -- and in fact they do behave different in GNU's libm. So on the one hand `pow(1, x * y)` must always be `1` but on the other hand it can return a NaN when `x` is an sNaN and `y` is `1`?
