chore: new smart_ptr helpers, tracked_ptr using header guards, and option chores.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

3 files changed, 20 insertions, 9 deletions

diff --git a/include/ocl/option.hpp b/include/ocl/option.hpp
index e114b43..9286ef9 100644
--- a/include/ocl/option.hpp
+++ b/include/ocl/option.hpp
@@ -12,7 +12,7 @@
 
 namespace ocl
 {
-	enum class return_type
+	enum struct return_type
 	{
 		invalid = 0,
 		okay	= 100,
@@ -50,8 +50,7 @@ namespace ocl
 		{
 			if (ret_ == return_type::err)
 			{
-				ErrorHandler err_handler;
-				err_handler(input ? input : "option::error");
+				ErrorHandler{}(input ? input : "option::error");
 			}
 
 			return *this;
diff --git a/include/ocl/smart_ptr.hpp b/include/ocl/smart_ptr.hpp
index adab5aa..f8b7108 100644
--- a/include/ocl/smart_ptr.hpp
+++ b/include/ocl/smart_ptr.hpp
@@ -1,13 +1,14 @@
 /*
- * File: unique_pr.hpp
- * Purpose: Unique Pointer helpers.
+ * File: smart_ptr.hpp
+ * Purpose: Smart Pointer helpers.
  * Author: Amlal El Mahrouss (amlal@nekernel.org)
  * Copyright 2025, Amlal El Mahrouss, Licensed under the Boost Software License. Licensed under the BSL 1.0 license
  */
 
-#ifndef __OCL_UNIQUE_PTR
-#define __OCL_UNIQUE_PTR
+#ifndef __OCL_SMART_PTR
+#define __OCL_SMART_PTR
 
+#include <boost/core/null_deleter.hpp>
 #include <ocl/detail/config.hpp>
 #include <ocl/tracked_ptr.hpp>
 #include <memory>
@@ -16,6 +17,14 @@ namespace ocl
 {
 	template <class T, class Del>
 	using unique_ptr = std::unique_ptr<T, Del>;
+
+    template<class T, class _Deleter>
+    inline auto delete_ptr(T& obj) -> auto { return std::shared_ptr<T>{obj, _Deleter()}; }
+
+    /// @brief Constructs a `null_ptr`, that is, a pointer that isn't deleted from the heap.
+    template<class T>
+    inline auto null_deleter(T& obj) -> auto { return delete_ptr<T, boost::null_deleter>(obj); }
+
 }
 
-#endif // ifndef __OCL_UNIQUE_PTR
\ No newline at end of file
+#endif // ifndef __OCL_SMART_PTR
\ No newline at end of file
diff --git a/include/ocl/tracked_ptr.hpp b/include/ocl/tracked_ptr.hpp
index 5a1b94e..23ced29 100644
--- a/include/ocl/tracked_ptr.hpp
+++ b/include/ocl/tracked_ptr.hpp
@@ -5,7 +5,8 @@
  * Copyright 2025, Amlal El Mahrouss, licensed under the Boost Software License.
  */
 
-#pragma once
+#ifndef __OCL_TRACKED_PTR
+#define __OCL_TRACKED_PTR
 
 #include <exception>
 #include <ocl/detail/config.hpp>
@@ -233,3 +234,5 @@ namespace ocl
 		}
 	}
 } // namespace ocl
+
+#endif // ifndef __OCL_TRACKED_PTR
\ No newline at end of file