updated docs

cloned_ptr.h

@@ -0,0 +1,50 @@
+#pragma once
+//-- Copyright 2016 Intrig
+//-- See https://github.com/intrig/xenon for license.
+
+namespace ict {
+template <typename T>
+struct cloned_ptr {
+    cloned_ptr() : p(0) {}
+    cloned_ptr(T * p) : p(p) { };
+
+    cloned_ptr(const cloned_ptr<T> & x) {
+        p = x->clone();
+    }
+
+    template <typename E>
+    inline cloned_ptr(cloned_ptr<E> && x) {
+        p = x.p;
+        x.p = 0;
+    }
+
+    template <typename F>
+    inline cloned_ptr(cloned_ptr<F> & x) {
+        p = x->clone();
+    }
+
+    ~cloned_ptr() { if (p) delete p; }
+
+    cloned_ptr<T> & operator=(const cloned_ptr & x) {
+        if (p) {
+            delete p;
+            p = 0;
+        }
+        if (x.p) p = x->clone();
+        return *this;
+    }
+
+    T& operator*() { return *p; }
+    const T& operator*() const { return *p; }
+    T* operator->() { return p; }
+    const T* operator->() const { return p; }
+
+    T * p = 0;
+};
+
+template <typename T>
+cloned_ptr<T> make_cloned() {
+    return cloned_ptr<T>(new T);
+}
+
+}