// Build don't link:// // Copyright (C) 2001 Free Software Foundation, Inc.// Contributed by Nathan Sidwell 24 April 2001 <nathan@codesourcery.com>// Bug 2608. A default parameter introduced in the definition of a// ctor never made it into the clones, leading to later overload// resolution failures. This is related to bug 2356.struct A{  A (int, int);};A::A (int d, int = 0){  if (d)    {      A a (0);    }}void get_width (){  A a (1);}struct B : A{  B ();};B::B ()  :A (1){}struct C : virtual A{  C (int, int);};C::C (int, int = 0)  :A (1){}struct D: C{  D ();};D::D ()  :A (0), C (0){}