Fri, 13 Apr 2012 12:49:33 +0200 Andreas Lochbihler adapt to changes in RBT_Impl
Fri, 13 Apr 2012 11:45:30 +0200 Andreas Lochbihler move RBT implementation into type class contexts
Fri, 13 Apr 2012 12:09:25 +0200 wenzelm misc tuning;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip