Selectively copy

roystgnr · Aug 15, 2019 · e6c77f1 · e6c77f1
1 parent f280545
commit e6c77f1
Showing 1 changed file with 35 additions and 2 deletions.
diff --git a/src/utilities/include/metaphysicl/dynamic_std_array_wrapper.h b/src/utilities/include/metaphysicl/dynamic_std_array_wrapper.h
@@ -31,8 +31,9 @@
 namespace MetaPhysicL
 {
 template <typename T, typename NType>
-struct DynamicStdArrayWrapper
+class DynamicStdArrayWrapper
 {
+public:
   static const std::size_t N = NType::size;
 
   typedef std::size_t size_type;
@@ -45,6 +46,39 @@ struct DynamicStdArrayWrapper
   typedef typename std::array<T, N>::reference reference;
   typedef typename std::array<T, N>::const_reference const_reference;
 
+  DynamicStdArrayWrapper(const DynamicStdArrayWrapper & src)
+    {
+      _dynamic_n = src._dynamic_n;
+      metaphysicl_assert(_dynamic_n < N);
+      std::copy(src.begin(), src.end(), _data.begin());
+    }
+
+  // A std::array isn't movable
+  DynamicStdArrayWrapper(DynamicStdArrayWrapper && src)
+    {
+      _dynamic_n = src._dynamic_n;
+      metaphysicl_assert(_dynamic_n < N);
+      std::copy(src.begin(), src.end(), _data.begin());
+    }
+
+  DynamicStdArrayWrapper & operator=(const DynamicStdArrayWrapper & src)
+    {
+      _dynamic_n = src._dynamic_n;
+      metaphysicl_assert(_dynamic_n < N);
+      std::copy(src.begin(), src.end(), _data.begin());
+      return *this;
+    }
+
+  // A std::array isn't movable
+  DynamicStdArrayWrapper & operator=(DynamicStdArrayWrapper && src)
+    {
+      _dynamic_n = src._dynamic_n;
+      metaphysicl_assert(_dynamic_n < N);
+      std::copy(src.begin(), src.end(), _data.begin());
+      return *this;
+    }
+
+  DynamicStdArrayWrapper() = default;
 
   iterator begin() { return _data.begin(); }
 
@@ -100,7 +134,6 @@ struct DynamicStdArrayWrapper
 
 private:
   std::array<T, N> _data;
-
   std::size_t _dynamic_n = 0;
 };