1 files changed, 22 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-3.C b/gcc-4.9/gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-3.C
new file mode 100644
index 000000000..ed54143a0
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-3.C
@@ -0,0 +1,22 @@
+// PR c++/51290
+// { dg-options "-Wzero-as-null-pointer-constant" }
+
+class A { int a; };
+
+class B { int b; };
+
+class C : public A, public B
+{
+    private:
+        static void foo (A *x)
+        {
+            C *y = static_cast<C *>(x);
+            (void) y;
+        }
+
+        static void bar (B *x)
+        {
+            C *y = static_cast<C *>(x);
+            (void) y;
+        }
+};