Add ability for reverse iteration to tower code, and corresponding

[pspp-builds.git] / src / libpspp / ChangeLog

diff --git a/src/libpspp/ChangeLog b/src/libpspp/ChangeLog
index 29acbae1f3b6ca9e0ce51df18e7a3b75dac1a6f4..9e965630829ae180a53e91db9e02aff9b3f6d2a5 100644 (file)
--- a/src/libpspp/ChangeLog
+++ b/src/libpspp/ChangeLog
@@ -1,3 +1,15 @@
+2007-06-03  Ben Pfaff  <blp@gnu.org>
+
+       Add ability for reverse iteration to tower code.
+       
+       * tower.c (tower_last): New function.
+       (tower_prev): New function.
+       (abt_to_tower_node): New function.
+       (first_node): Use abt_to_tower_node.
+       (last_node): New function.
+       (next_ndoe): Use abt_to_tower_node.
+       (prev_node): New function.
+
 2007-06-03  Ben Pfaff  <blp@gnu.org>
 
        * tower.c: Cache repeated lookups of a single tower element.  This