On Wed, Feb 01, 2017 at 11:04:54AM -0800, Joe Perches wrote: > > +#define order_base_2(n) \ > > +( \ > > + __builtin_constant_p(n) ? ( \ > > + ((n) < 2) ? (n) : \ > > + ilog2((n) - 1) + 1) : \ > > + __order_base_2(n) \ > > + ) > > Does this work properly when n is a signed negative value?
Do you see it returning a complex number?

