First commit.

include/ehs/Link.h

@@ -0,0 +1,70 @@
+#pragma once
+
+namespace ehs
+{
+    /// Test
+    template<typename T>
+    class Link
+    {
+    public:
+        T value;
+        Link<T> *child;
+
+        ~Link()
+        {
+            delete child;
+        }
+
+        Link()
+            : value(), child(nullptr)
+        {
+        }
+
+        Link(const T value, Link* child)
+            : value(value), child(child)
+        {
+        }
+
+        Link(const T value)
+            : value(value), child(nullptr)
+        {
+        }
+
+        Link(const Link& link)
+            : value(link.value), child(nullptr)
+        {
+        }
+
+        Link(Link&& link) noexcept
+            : value(link.value), child(link.child)
+        {
+            link.value = 0;
+            link.child = nullptr;
+        }
+
+        Link& operator=(const Link& link)
+        {
+            if (this == &link)
+                return *this;
+
+            value = link.value;
+            child = nullptr;
+
+            return *this;
+        }
+
+        Link& operator=(Link&& link) noexcept
+        {
+            if (this == &link)
+                return *this;
+
+            value = link.value;
+            child = link.child;
+
+            link.value = 0;
+            link.child = nullptr;
+
+            return *this;
+        }
+    };
+}