Re: [ublas] warning in unbounded_array::resize_internal(...), new patch

From: Gunter Winkler (guwi17_at_[hidden])
Date: 2005-08-19 07:34:30

Hello,

I found another bug in resize_internal: If I create a vector of size zero and 
resize it, then the data_ member remains a null pointer. The assignment
  data_ = data 
must always be done.

---8x----------------------

Index: storage.hpp
===================================================================
RCS file: /cvsroot/boost/boost/boost/numeric/ublas/storage.hpp,v
retrieving revision 1.65
diff -u -p -r1.65 storage.hpp
--- storage.hpp	16 Aug 2005 18:07:21 -0000	1.65
+++ storage.hpp	19 Aug 2005 12:30:51 -0000
@@ -107,7 +107,7 @@ namespace boost { namespace numeric { na
         BOOST_UBLAS_INLINE
         void resize_internal (size_type size, value_type init, bool preserve) 
{
             if (size != size_) {
-                pointer data;
+                pointer data = 0;
                 if (size) {
                     data = alloc_.allocate (size);
                     if (preserve) {
@@ -147,8 +147,8 @@ namespace boost { namespace numeric { na
                         iterator_destroy (i); 
                     }
                     alloc_.deallocate (data_, size_);
-                    data_ = data;
                 }
+                data_ = data;
                 size_ = size;
             }
         }