Added ArrayBit to get the ability to manipulate a Matrix like a simple scalar.

In particular this flag changes the behavior of operator* to a coeff wise product.

1 files changed, 45 insertions, 0 deletions

diff --git a/Eigen/src/Core/ArrayBase.h b/Eigen/src/Core/ArrayBase.h
new file mode 100644
index 000000000..222c0256a
--- /dev/null
+++ b/Eigen/src/Core/ArrayBase.h
@@ -0,0 +1,45 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra. Eigen itself is part of the KDE project.
+//
+// Copyright (C) 2006-2008 Benoit Jacob <jacob@math.jussieu.fr>
+//
+// Eigen is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 3 of the License, or (at your option) any later version.
+//
+// Alternatively, you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of
+// the License, or (at your option) any later version.
+//
+// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License and a copy of the GNU General Public License along with
+// Eigen. If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef EIGEN_ARRAYBASE_H
+#define EIGEN_ARRAYBASE_H
+
+template<typename Derived> class ArrayBase<Derived,false> {};
+
+template<typename Derived> class ArrayBase<Derived,true>
+{
+    inline const Derived& derived() const { return *static_cast<const Derived*>(this); }
+    inline Derived& derived() { return *static_cast<Derived*>(this); }
+    inline Derived& const_cast_derived() const
+    { return *static_cast<Derived*>(const_cast<ArrayBase*>(this)); }
+public:
+    template<typename OtherDerived>
+    const Product<Derived,OtherDerived>
+    matrixProduct(const MatrixBase<OtherDerived> &other) const
+    {
+        return Product<Derived,OtherDerived>(derived(), other.derived());
+    }
+};
+
+#endif // EIGEN_ARRAYBASE_H
\ No newline at end of file