gcc/testsuite/g++.dg/cpp0x/ref-qual8.C

   1 // { dg-require-effective-target c++11 }
   2
   3 struct A
   4 {
   5   virtual void f() & = 0;
   6 };
   7
   8 struct B: A
   9 {
  10   void f();                     // doesn't override
  11 };
  12
  13 B b;                            // { dg-error "abstract" }