# HG changeset patch
# User Jordi Gutiérrez Hermoso <jordigh@octave.org>
# Date 1322353702 18000
# Node ID d672edef956e0a9df2b294c0fb71475aa37e1dc1
# Parent  0f2835a6a995507c1064319da59a22ad03f0e077
Fix UB (reading uninitialised memory)

* dSparse.cc (SparseMatrix::Column): Initialise retval with zeros.

diff --git a/liboctave/dSparse.cc b/liboctave/dSparse.cc
--- a/liboctave/dSparse.cc
+++ b/liboctave/dSparse.cc
@@ -585,7 +585,7 @@
 SparseMatrix::column (octave_idx_type i) const
 {
   octave_idx_type nr = rows ();
-  ColumnVector retval (nr);
+  ColumnVector retval (nr, 0);
 
   for (octave_idx_type k = cidx (i); k < cidx (i+1); k++)
     retval(ridx (k)) = data (k);