1 files changed, 47 insertions, 0 deletions
diff --git a/include/cru/common/Base.hpp b/include/cru/common/Base.hpp
new file mode 100644
index 00000000..ff7ab31e
--- /dev/null
+++ b/include/cru/common/Base.hpp
@@ -0,0 +1,47 @@
+#pragma once
+#include "PreConfig.hpp"
+
+#include <gsl/gsl>
+
+#include <stdexcept>
+
+#define CRU_UNUSED(entity) static_cast<void>(entity);
+
+#define CRU_DEFAULT_COPY(classname)      \
+  classname(const classname&) = default; \
+  classname& operator=(const classname&) = default;
+
+#define CRU_DEFAULT_MOVE(classname) \
+  classname(classname&&) = default; \
+  classname& operator=(classname&&) = default;
+
+#define CRU_DELETE_COPY(classname)      \
+  classname(const classname&) = delete; \
+  classname& operator=(const classname&) = delete;
+
+#define CRU_DELETE_MOVE(classname) \
+  classname(classname&&) = delete; \
+  classname& operator=(classname&&) = delete;
+
+namespace cru {
+class Object {
+ public:
+  Object() = default;
+  CRU_DEFAULT_COPY(Object)
+  CRU_DEFAULT_MOVE(Object)
+  virtual ~Object() = default;
+};
+
+struct Interface {
+  Interface() = default;
+  CRU_DELETE_COPY(Interface)
+  CRU_DELETE_MOVE(Interface)
+  virtual ~Interface() = default;
+};
+
+[[noreturn]] inline void UnreachableCode() {
+  throw std::runtime_error("Unreachable code.");
+}
+
+using Index = gsl::index;
+}  // namespace cru