gcc/testsuite/g++.dg/other/ctor1.C

/* { dg-do compile } */
// PR C++/30303
// This used to ICE because we did not return NULL
// in grokfndecl when an error happened.

class A
{
  int i;
};

A::A() { A(); } /* { dg-error "definition of implicitly-declared" } */