On 03/03/2016 13:45, Paolo Bonzini wrote: > > > On 03/03/2016 13:28, Laurent Vivier wrote: >> + >> +#define DAYS(y,m,d) (365UL * (y) + ((y) / 4) - ((y) / 100) + ((y) / 400) + \ >> + 367UL * (m) / 12 + \ > > Out of curiosity, where did you take this from? I knew the variant with > 2447/80 instead of 367/12, but they give the same result, as checked > with bc: Some ideas from: http://www.cantab.net/users/michael.behrend/algorithms/easter/pages/main.html 30*m + (7*(m+1) / 12) reduced into (360m + 7m + 7)/12 -> 367m/12 Laurent > $ bc > for (n=1;n<=12;n++)2447*n/80-367*n/12; > 0 > 0 > 0 > 0 > 0 > 0 > 0 > 0 > 0 > 0 > 0 > 0 > > Paolo > >> + (d)) >> + -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
