Starting Eigen 2 development. The current plan is to use the last

release of tvmet (inactive for 2 years and developer unreachable) as the
basis for eigen2, because it provides seemingly good expression template
mechanisms, we want that, and it would take years to reinvent that
wheel. We'll see. So this commit imports the last tvmet release.

1 files changed, 98 insertions, 0 deletions

diff --git a/tvmet-1.7.1/include/tvmet/xpr/UnOperator.h b/tvmet-1.7.1/include/tvmet/xpr/UnOperator.h
new file mode 100644
index 000000000..a6b50ee06
--- /dev/null
+++ b/tvmet-1.7.1/include/tvmet/xpr/UnOperator.h
@@ -0,0 +1,98 @@
+/*
+ * Tiny Vector Matrix Library
+ * Dense Vector Matrix Libary of Tiny size using Expression Templates
+ *
+ * Copyright (C) 2001 - 2003 Olaf Petzold <opetzold@users.sourceforge.net>
+ *
+ * This library 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 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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 for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id: UnOperator.h,v 1.13 2003/11/30 18:35:17 opetzold Exp $
+ */
+
+#ifndef TVMET_XPR_UNOPERATOR_H
+#define TVMET_XPR_UNOPERATOR_H
+
+namespace tvmet {
+
+
+/**
+ * \class XprUnOp UnOperator.h "tvmet/xpr/UnOperator.h"
+ * \brief Unary operator working on one subexpression.
+ *
+ * Using the access operator() the unary operation will be evaluated.
+ */
+template<class UnOp, class E>
+class XprUnOp
+  : public TvmetBase< XprUnOp<UnOp, E> >
+{
+  XprUnOp();
+  XprUnOp& operator=(const XprUnOp&);
+
+public:
+  typedef typename UnOp::value_type				value_type;
+
+public:
+  /** Complexity counter. */
+  enum {
+    ops_expr  = E::ops,
+    ops       = 1 * ops_expr
+  };
+
+public:
+  /** Constructor for an expressions. */
+  explicit XprUnOp(const E& e)
+    : m_expr(e)
+  { }
+
+  /** Copy Constructor. Not explicit! */
+#if defined(TVMET_OPTIMIZE_XPR_MANUAL_CCTOR)
+  XprUnOp(const XprUnOp& e)
+    : m_expr(e.m_expr)
+  { }
+#endif
+
+  /** Index operator, evaluates the expression inside. */
+  value_type operator()(std::size_t i) const {
+    return UnOp::apply_on(m_expr(i));
+  }
+
+  /** index operator for arrays/matrices. */
+  value_type operator()(std::size_t i, std::size_t j) const {
+    return UnOp::apply_on(m_expr(i, j));
+  }
+
+public: // debugging Xpr parse tree
+  void print_xpr(std::ostream& os, std::size_t l=0) const {
+    os << IndentLevel(l++)
+       << "XprUnOp[O="<< ops << ", (O=" << ops_expr << ")]<"
+       << std::endl;
+    UnOp::print_xpr(os, l);
+    m_expr.print_xpr(os, l);
+    os << IndentLevel(--l)
+       << ">," << std::endl;
+  }
+
+private:
+  const E							m_expr;
+};
+
+
+} // namespace tvmet
+
+#endif // TVMET_XPR_UNOPERATOR_H
+
+// Local Variables:
+// mode:C++
+// End: