Add operator==() and operator!=()

include/rcp.h

@@ -105,6 +105,26 @@ public:
         return ptr != nullptr;
     }
 
+    bool operator==(const rcp<T> & other) const
+    {
+        return ptr == other.ptr;
+    }
+
+    bool operator!=(const rcp<T> & other) const
+    {
+        return ptr != other.ptr;
+    }
+
+    bool operator==(std::nullptr_t) const
+    {
+        return ptr == nullptr;
+    }
+
+    bool operator!=(std::nullptr_t) const
+    {
+        return ptr != nullptr;
+    }
+
     template <typename... Args>
     static rcp<T> create(Args&&... args)
     {