libavl NEWS -- history of user-visible changes.  
Time-stamp: <1999-08-15 21:52:15 blp>
Copyright (C) 1998, 1999 Free Software Foundation, Inc.
See the end for copying conditions.

Please send PSPP bug reports to bug-gnu-pspp@gnu.org.

Changes for version 1.4.0:

  Implemented red-black trees.

  New functions, *_init_traverser(), to initialize a *_traverser
  structure.  New macros *_TRAVERSER_INIT for same purpose.

Changes for version 1.3.0:

  Now uses Autoconf and Automake to configure.  Thanks to Alexandre
  Oliva <oliva@dcc.unicamp.br>.

  New: automated testing with `make check'.

  Fixes for strict ANSI C compliance.

  Fixed useless assertions.  Fixed bug regarding empty trees for some
  operations with threaded and right-threaded trees.  Thanks to
  "Ficarra, David W, NNAD" <dficarra@att.com>.

  New functions, avl*_find_close(), for finding a node in the tree
  with a value close to a specified value.  See documentation and
  source code for more details.  Thanks to Thomas Binder
  <binder@iue.tuwien.ac.at>.

Changes for version 1.2.9:
 
  Fix typos in documentation.  Thanks to onTy Toom <onty@yahoo.com>.

Changes for version 1.2.8:

  Fixed typos in assertions.  Thanks to Girish Zambre
  <gzambre@sprynet.com>.

  Better support for gcc 2.7.x.

Changes for versions 1.2.4, 1.2.5, 1.2.6, 1.2.7:

  Documentation updates.  Thanks to Ron Pfeifle <rpfeifle@aw.sgi.com>,
  Jason Eisner <jeisner@linc.cis.upenn.edu>, and others.

Changes for version 1.2.3:

  The library's allocation function xmalloc() can easily be overridden
  by the library's user.  Thanks to Clayton Weaver <cgweav@eskimo.com>
  for the idea.

Changes for version 1.2.2:

  Documentation fixes.  Thanks to Akim Demaille <demaille@inf.enst.fr>
  for pointing these out.

Changes for version 1.2.1:

  Bug fixes.

Changes for version 1.2.0:

  Implemented right-threaded trees.

  Added functions to convert among AVL tree types.

  First GNU release.

Changes for version 1.1.0:

  Implemented threaded trees.

Changes for version 1.0:

  First public release.

----------------------------------------------------------------------
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Copyright (C) 1998, 1999 Free Software Foundation, Inc.

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   copies of this document as received, in any medium, provided that
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