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diff --git a/src/stlplus/persistence/persistent_matrix.tpp b/src/stlplus/persistence/persistent_matrix.tpp
new file mode 100644
index 0000000..ac81f85
--- /dev/null
+++ b/src/stlplus/persistence/persistent_matrix.tpp
@@ -0,0 +1,49 @@
+////////////////////////////////////////////////////////////////////////////////
+
+//   Author:    Andy Rushton
+//   Copyright: (c) Southampton University 1999-2004
+//              (c) Andy Rushton           2004-2009
+//   License:   BSD License, see ../docs/license.html
+
+////////////////////////////////////////////////////////////////////////////////
+#include "persistent_int.hpp"
+
+namespace stlplus
+{
+
+  ////////////////////////////////////////////////////////////////////////////////
+
+  template<typename T, typename DT>
+  void dump_matrix(dump_context& context, const matrix<T>& data,
+                   DT dump_fn)
+    throw(persistent_dump_failed)
+  {
+    unsigned rows = data.rows();
+    unsigned cols = data.columns();
+    dump_unsigned(context, rows);
+    dump_unsigned(context, cols);
+    for (unsigned r = 0; r < rows; r++)
+      for (unsigned c = 0; c < cols; c++)
+        dump_fn(context, data(r,c));
+  }
+
+  ////////////////////////////////////////////////////////////////////////////////
+
+  template<typename T, typename RT>
+  void restore_matrix(restore_context& context, matrix<T>& data,
+                      RT restore_fn)
+    throw(persistent_restore_failed)
+  {
+    unsigned rows = 0;
+    restore_unsigned(context, rows);
+    unsigned cols = 0;
+    restore_unsigned(context, cols);
+    data.resize(rows,cols);
+    for (unsigned r = 0; r < rows; r++)
+      for (unsigned c = 0; c < cols; c++)
+        restore_fn(context, data(r,c));
+  }
+
+  ////////////////////////////////////////////////////////////////////////////////
+
+} // end namespace stlplus