some minor extensions + add some first range transform code

src/multi_array_header.h

@@ -27,6 +27,7 @@ namespace MultiArrayTools
     typedef SingleIndex<size_t,RangeType::LORENTZ> LorentzI;
     typedef SingleIndex<int,RangeType::SPACE> Space1dNI;
     typedef SingleIndex<int,RangeType::MOMENTUM> Mom1dNI;
+    typedef SingleIndex<size_t,RangeType::ENSEMBLE> EnsI;
     // ...
 
     // ===== Range Types =====
@@ -36,6 +37,7 @@ namespace MultiArrayTools
     typedef SingleRange<size_t,RangeType::LORENTZ> LorentzR;
     typedef SingleRange<int,RangeType::SPACE> Space1dNR;
     typedef SingleRange<int,RangeType::MOMENTUM> Mom1dNR;
+    typedef SingleRange<size_t, RangeType::ENSEMBLE> EnsR;
     typedef MultiRange<Space1dNR,Space1dNR,Space1dNR> Space3dNR;
     typedef MultiRange<Mom1dNR,Mom1dNR,Mom1dNR> Mom3dNR;
     // ...

src/range_base.h

@@ -19,7 +19,8 @@ namespace MultiArrayTools
 	SPACE = 2,
 	MOMENTUM = 3,
 	LORENTZ = 4,
-	SPIN = 5
+	SPIN = 5,
+	ENSEMBLE = 6
     };
 
     class MultiRangeType

src/range_transformer.cc

@@ -0,0 +1,9 @@
+// -*- C++ -*-
+
+#include "range_transformer.h"
+
+namespace MultiArrayTools
+{
+
+
+}

src/range_transformer.h

@@ -0,0 +1,20 @@
+// -*- C++ -*-
+
+#ifndef __range_transformer_h__
+#define __range_transformer_h__
+
+#include <cstdlib>
+#include "base_def.h"
+
+namespace MultiArrayTools
+{
+
+    // init 'MultiRange' with 'new'
+    template <class... Ranges>
+    shared_ptr<MultiRange<Ranges...> > combine(const Ranges&... ranges);
+
+}
+
+#include "range_transformer.cc"
+
+#endif