On Mon, Nov 25, 2002 at 03:56:58PM -0800, Alexandra Thorn wrote: > > const int selection_size = ELEMS_IN_ARY(your_array) - (i + 1); > > int selected_card = (i + 1) /* don't include the already selected > > cards, or the card to swap with */ > > + (int)((selection_size*1.0*rand())/(RAND_MAX+1.0)) /* see > > rand(3) */ > > Micah, could you explain how/why this would work? It doesn't seem > intuitively obvious, and I prefer not to use code that I don't understand.
Say you're on the 3rd card. What he's doing is making sure he doesn't pick card 1, 2 or 3 (i.e., itself) as the card to swap with. -bill! _______________________________________________ vox-tech mailing list [EMAIL PROTECTED] http://lists.lugod.org/mailman/listinfo/vox-tech
