path: root/.gitignore
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authorJason Evans <>2010-08-09 22:17:34 (GMT)
committerJunio C Hamano <>2010-08-15 02:35:37 (GMT)
commit951f316470acc7c785c460a4e40735b22822349f (patch)
tree8cc846b9eead64502e00fc4064d5decfa1897320 /.gitignore
parent4709455db3891f6cad9a96a574296b4926f70cbe (diff)
Add treap implementation
Provide macros to generate a type-specific treap implementation and various functions to operate on it. It uses obj_pool.h to store memory nodes in a treap. Previously committed nodes are never removed from the pool; after any *_commit operation, it is assumed (correctly, in the case of svn-fast-export) that someone else must care about them. Treaps provide a memory-efficient binary search tree structure. Insertion/deletion/search are about as about as fast in the average case as red-black trees and the chances of worst-case behavior are vanishingly small, thanks to (pseudo-)randomness. The bad worst-case behavior is a small price to pay, given that treaps are much simpler to implement. >From [db: Altered to reference nodes by offset from a common base pointer] [db: Bob Jenkins' hashing implementation dropped for Knuth's] [db: Methods unnecessary for search and insert dropped] [rr: Squelched compiler warnings] [db: Added support for immutable treap nodes] [jn: Reintroduced treap_nsearch(); with tests] Signed-off-by: David Barr <> Signed-off-by: Ramkumar Ramachandra <> Signed-off-by: Jonathan Nieder <> Signed-off-by: Junio C Hamano <>
Diffstat (limited to '.gitignore')
1 files changed, 1 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
index 1e64a6a..af47653 100644
--- a/.gitignore
+++ b/.gitignore
@@ -173,6 +173,7 @@