Add reset()

include/rcp.h

@@ -118,6 +118,15 @@ public:
         other.ptr = nullptr;
     }
 
+    void reset()
+    {
+        if (ptr)
+        {
+            ptr->rcp_dec();
+            ptr = nullptr;
+        }
+    }
+
     T * get_raw() const
     {
         return ptr;

test/tests.cpp

@@ -181,6 +181,15 @@ void test_move_assignment_releases_existing()
     assert(mybase_destruct == destructed_before + 2);
 }
 
+void test_reset()
+{
+    int destructed_before = mybase_destruct;
+    MyB p = MyB::create(1, 2);
+    p.reset();
+    assert(!p);
+    assert(mybase_destruct == destructed_before + 1);
+}
+
 void test_upcast()
 {
     rcp<MyDerived> derived = MyDerived::create(1.5);
@@ -229,6 +238,7 @@ int main(int argc, char * argv[])
     test_create();
     test_multi_construct_from_raw_pointers();
     test_copy_assignment_decrements_previous_reference();
+    test_reset();
     test_move_constructor();
     test_move_assignment();
     test_move_assignment_releases_existing();