Add Fastor library

noarch/include/Fastor/tensor/AbstractTensor.h

@@ -0,0 +1,33 @@
+#ifndef TENSORBASE_H
+#define TENSORBASE_H
+
+#include "Fastor/config/config.h"
+#include "Fastor/meta/tensor_meta.h"
+
+
+namespace Fastor {
+
+template<typename T, size_t ... Rest>
+class Tensor;
+template<typename T, size_t ... Rest>
+class TensorMap;
+
+
+template<class Derived, FASTOR_INDEX Rank>
+class AbstractTensor {
+public:
+    constexpr FASTOR_INLINE AbstractTensor() = default;
+    constexpr FASTOR_INLINE const Derived& self() const {return *static_cast<const Derived*>(this);}
+    FASTOR_INLINE Derived& self() {return *static_cast<Derived*>(this);}
+
+    static constexpr FASTOR_INDEX Dimension = Rank;
+#ifndef FASTOR_DYNAMIC_MODE
+    static constexpr FASTOR_INDEX size() {return Derived::Size;}
+#else
+    FASTOR_INDEX size() const {return (*static_cast<const Derived*>(this)).size();}
+#endif
+};
+
+}
+
+#endif // TENSORBASE_H