Preparation work for loopback

1 files changed, 26 insertions, 0 deletions

diff --git a/modules/core/c++/common.hpp b/modules/core/c++/common.hpp
index 40b2c43..ebca498 100644
--- a/modules/core/c++/common.hpp
+++ b/modules/core/c++/common.hpp
@@ -40,6 +40,32 @@ template <typename T> using our = std::shared_ptr<T>;
 
 template <typename T> using lent = std::weak_ptr<T>;
 
+template<typename T>
+class ptr {
+private:
+	T* ptr_;
+
+public:
+	ptr(T& ptr__):
+		ptr_{&ptr__}
+	{}
+
+	SAW_DEFAULT_COPY(ptr);
+	SAW_DEFAULT_MOVE(ptr);
+
+	T& operator()(){
+		return *ptr_;
+	}
+
+	const T& operator()() const {
+		return *ptr_;
+	}
+
+	bool is_valid() const {
+		return ptr_ != nullptr;
+	}
+};
+
 /**
  * Reference class for easier distinction
  * of references and its referenced types.