xo-unit: + constexpr implementation (runtime+compiletime)

include/xo/unit/quantity2.hpp

@@ -0,0 +1,28 @@
+/** @file quantity2.hpp
+ *
+ *  Author: Roland Conybeare
+ **/
+
+#pragma once
+
+#include "bpu_array.hpp"
+
+namespace xo {
+    namespace unit {
+        /** @class quantity
+         *  @brief represent a scalar quantity with attached units.  enforce dimensional consistency.
+         *
+         *  Constexpr implementation, can compute units at compile time
+         **/
+        template <typename Repr = double, typename Int = std::int64_t>
+        class quantity2 {
+        public:
+            using repr_type = Repr;
+
+        private:
+        };
+    } /*namespace unit*/
+} /*namespace xo*/
+
+
+/** end quantity2.hpp **/