Diff: tvmet/TvmetBase.h

Revision:

15:9c5aaeda36dc

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tvmet/TvmetBase.h	Sat Apr 06 20:57:54 2013 +0000
@@ -0,0 +1,112 @@
+/*
+ * Tiny Vector Matrix Library
+ * Dense Vector Matrix Libary of Tiny size using Expression Templates
+ *
+ * Copyright (C) 2001 - 2007 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: TvmetBase.h,v 1.17 2007-06-23 15:58:58 opetzold Exp $
+ */
+
+#ifndef TVMET_BASE_H
+#define TVMET_BASE_H
+
+#include <iostream>//<iosfwd>                // io streams forward declaration
+#include <typeinfo>                // rtti: used by Xpr.h level printing
+#include <cmath>                // unary and binary math
+#include <cstdlib>                // labs
+
+#if defined(WIN32) && defined(_MSC_VER) && (_MSC_VER == 1310)
+#include <string>                // operator<<(ostream) here defined
+#endif
+
+#if defined(__APPLE_CC__)
+// Mac OS X builds seems to miss these functions inside cmath
+extern "C" int isnan(double);
+extern "C" int isinf(double);
+#endif
+
+namespace tvmet {
+
+
+/**
+ * \class TvmetBase TvmetBase.h "tvmet/TvmetBase.h"
+ * \brief Base class
+ * Used for static polymorph call of print_xpr
+ */
+template<class E> class TvmetBase { };
+
+
+/**
+ * \class IndentLevel TvmetBase.h "tvmet/TvmetBase.h"
+ * \brief Prints the level indent.
+ */
+class IndentLevel : public TvmetBase< IndentLevel >
+{
+public:
+  IndentLevel(std::size_t level) : m_level(level) { }
+
+  std::ostream& print_xpr(std::ostream& os) const {
+    for(std::size_t i = 0; i != m_level; ++i) os << "   ";
+    return os;
+  }
+
+private:
+  std::size_t                     m_level;
+};
+
+
+/**
+ * \fn operator<<(std::ostream& os, const TvmetBase<E>& e)
+ * \brief overloaded ostream operator using static polymorphic.
+ * \ingroup _binary_operator
+ */
+template<class E>
+inline
+std::ostream& operator<<(std::ostream& os, const TvmetBase<E>& e) {
+  static_cast<const E&>(e).print_xpr(os);
+  return os;
+}
+
+
+/**
+ * \class dispatch TvmetBase.h "tvmet/TvmetBase.h"
+ * \brief Class helper to distuingish between e.g. meta
+ *        and loop strategy used.
+ */
+template<bool> struct dispatch;
+
+/**
+ * \class dispatch<true> TvmetBase.h "tvmet/TvmetBase.h"
+ * \brief specialized.
+ */
+template<> struct dispatch<true>  { };
+
+/**
+ * \class dispatch<false> TvmetBase.h "tvmet/TvmetBase.h"
+ * \brief specialized.
+ */
+template<> struct dispatch<false> { };
+
+
+} // namespace tvmet
+
+#endif // TVMET_BASE_H
+
+// Local Variables:
+// mode:C++
+// tab-width:8
+// End: