Add move constructor and move assignment operator

include/rcp.h

@@ -70,6 +70,25 @@ public:
         return *this;
     }
 
+    rcp(rcp && other) noexcept : ptr(other.ptr)
+    {
+        other.ptr = nullptr;
+    }
+
+    rcp<T> & operator=(rcp && other) noexcept
+    {
+        if (ptr != other.ptr)
+        {
+            if (ptr)
+            {
+                ptr->rcp_dec();
+            }
+            ptr = other.ptr;
+            other.ptr = nullptr;
+        }
+        return *this;
+    }
+
     ~rcp()
     {
         if (ptr)

test/tests.cpp

@@ -132,6 +132,55 @@ void test_copy_assignment_decrements_previous_reference()
     assert(myb->x == 14);
 }
 
+void test_move_constructor()
+{
+    int constructed_before = mybase_construct;
+    int destructed_before = mybase_destruct;
+    {
+        MyB a = MyB::create(1, 2);
+        MyB b = std::move(a);
+        assert(!a);
+        assert(b);
+        assert(b->x == 1);
+        assert(mybase_destruct == destructed_before);
+    }
+    assert(mybase_construct == constructed_before + 1);
+    assert(mybase_destruct == destructed_before + 1);
+}
+
+void test_move_assignment()
+{
+    int constructed_before = mybase_construct;
+    int destructed_before = mybase_destruct;
+    {
+        MyB a = MyB::create(1, 2);
+        MyB b;
+        b = std::move(a);
+        assert(!a);
+        assert(b);
+        assert(b->x == 1);
+        assert(mybase_destruct == destructed_before);
+    }
+    assert(mybase_construct == constructed_before + 1);
+    assert(mybase_destruct == destructed_before + 1);
+}
+
+void test_move_assignment_releases_existing()
+{
+    int constructed_before = mybase_construct;
+    int destructed_before = mybase_destruct;
+    {
+        MyB a = MyB::create(1, 2);
+        MyB b = MyB::create(3, 4);
+        b = std::move(a);
+        assert(!a);
+        assert(b->x == 1);
+        assert(mybase_destruct == destructed_before + 1);
+    }
+    assert(mybase_construct == constructed_before + 2);
+    assert(mybase_destruct == destructed_before + 2);
+}
+
 int main(int argc, char * argv[])
 {
     test_class_hierarchy();
@@ -140,5 +189,8 @@ int main(int argc, char * argv[])
     test_create();
     test_multi_construct_from_raw_pointers();
     test_copy_assignment_decrements_previous_reference();
+    test_move_constructor();
+    test_move_assignment();
+    test_move_assignment_releases_existing();
     return 0;
 }