From 0bb71151afdaf179dd983c2598fa6ae7bbf23b27 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Wed, 6 Oct 2010 14:07:10 -0400
Subject: Add traits class.

---
 src/Makefile.am   |  1 +
 src/vZ.hpp        |  1 +
 src/vZ/traits.hpp | 38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 40 insertions(+)
 create mode 100644 src/vZ/traits.hpp

diff --git a/src/Makefile.am b/src/Makefile.am
index 25f6803..ea17bb6 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -19,4 +19,5 @@
 
 nobase_include_HEADERS = vZ.hpp                                                \
                          vZ/integrator.hpp                                     \
+                         vZ/traits.hpp                                         \
                          vZ/simple.hpp
diff --git a/src/vZ.hpp b/src/vZ.hpp
index 1d7327b..8035159 100644
--- a/src/vZ.hpp
+++ b/src/vZ.hpp
@@ -23,6 +23,7 @@
 #ifndef VZ_HPP
 #define VZ_HPP
 
+#include <vZ/traits.hpp>
 #include <vZ/integrator.hpp>
 #include <vZ/simple.hpp>
 
diff --git a/src/vZ/traits.hpp b/src/vZ/traits.hpp
new file mode 100644
index 0000000..baac9ed
--- /dev/null
+++ b/src/vZ/traits.hpp
@@ -0,0 +1,38 @@
+/*************************************************************************
+ * Copyright (C) 2009-2010 Tavian Barnes <tavianator@gmail.com>          *
+ *                                                                       *
+ * This file is part of The vZ Library.                                  *
+ *                                                                       *
+ * The vZ 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 3 of the    *
+ * License, or (at your option) any later version.                       *
+ *                                                                       *
+ * The vZ 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 program.  If not, see                         *
+ * <http://www.gnu.org/licenses/>.                                       *
+ *************************************************************************/
+
+#ifndef VZ_TRAITS_HPP
+#define VZ_TRAITS_HPP
+
+namespace vZ
+{
+  // Traits class
+  //
+  // Specialize this class for non-scalar types which are used as template
+  // arguments to the Generic* classes
+  template <typename T>
+  class Traits
+  {
+  public:
+    typedef T Scalar;
+  };
+}
+
+#endif // VZ_TRAITS_HPP
-- 
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