[m-rev.] diff: add rtrees to 0.13 branch and update NEWS file for 0.13.1

Julien Fischer juliensf at csse.unimelb.edu.au
Mon Oct 23 16:21:49 AEST 2006


Estimated hour taken: 0.5
Branches: release

Add the rtree module to the release branch.  Although we don't usually
add new features on the release branch there should be no problems with
this since it is pretty much self-contained - also it's more likely to
be used if it's in the official release.

NEWS:
 	Add an (initial) entry for Mercury 0.13.1.

library/rtree.m:
library/library.m:
 	Add the rtree module from the main branch.

tests/hard_coded/Mmakefile:
tests/hard_coded/rtree_test.{m,exp}:
 	Add the rtree test.

Julien.

(The following diff contains just the changes to the NEWS file - the
other stuff is as it is on the main branch.)

Index: NEWS
===================================================================
RCS file: /home/mercury/mercury1/repository/mercury/NEWS,v
retrieving revision 1.409.2.7
diff -u -r1.409.2.7 NEWS
--- NEWS	14 Sep 2006 03:18:03 -0000	1.409.2.7
+++ NEWS	23 Oct 2006 06:12:27 -0000
@@ -1,3 +1,25 @@
+NEWS for Mercury 0.13.1-beta
+----------------------------
+
+This release (will be) primarily a bug-fix release.
+The problems fixed include:
+
+* polymorphic insts and mode-specific clauses did not work together.
+* polymorphic insts and foreign_export pragmas did not work together.
+* the compiler was not correctly enforcing the restriction that type
+  variables in instance declarations should be distinct.
+* the compiler sometimes performed superclass reduction incorrectly,
+  causing it to reject valid typeclass constraints.
+* parallel builds using mmake now work again.
+
+In addition to bug-fixes we have the following addition to the 
+standard library.
+
+Changes to the Mercury standard library:
+* We have added a new module `rtree', that provides region trees. 
+  These are a standard data structure for querying spatial information.
+
+
  NEWS for Mercury 0.13
  ---------------------

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