Commit Graph

2 Commits

Author SHA1 Message Date
Jason Evans
f3ff75289b Rewrite red-black trees.
Use left-leaning 2-3 red-black trees instead of left-leaning 2-3-4
red-black trees.  This reduces maximum tree height from (3 lg n) to
(2 lg n).

Do lazy balance fixup, rather than transforming the tree during the down
pass.  This improves insert/remove speed by ~30%.

Use callback-based iteration rather than macros.
2010-02-28 15:00:18 -08:00
Jason Evans
376b1529a3 Restructure source tree. 2010-02-11 14:45:59 -08:00