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?