1 files changed, 15 insertions, 0 deletions
diff --git a/test/CXX/special/class.copy/p13-0x.cpp b/test/CXX/special/class.copy/p13-0x.cpp
index 5d436016a056..16c8a4029cba 100644
--- a/test/CXX/special/class.copy/p13-0x.cpp
+++ b/test/CXX/special/class.copy/p13-0x.cpp
@@ -114,3 +114,18 @@ namespace PR13052 {
     friend constexpr S<W>::S(const S<W>&) noexcept;
   };
 }
+
+namespace Mutable {
+  struct A {
+    constexpr A(A &);
+    A(const A &);
+  };
+  struct B {
+    constexpr B(const B &) = default; // ok
+    mutable A a;
+  };
+  struct C {
+    constexpr C(const C &) = default; // expected-error {{not constexpr}}
+    A a;
+  };
+}