https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65554
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> --- namespace std { struct B { enum { __value }; }; template <typename _Iterator> struct C { static _Iterator _S_base (_Iterator p1) { return p1; } }; template <typename> using _RequireInputIter = int; template <typename _Iterator> _Iterator __niter_base (_Iterator p1) { return std::C <_Iterator>::_S_base (p1); } template <typename _Iterator> _Iterator __miter_base (_Iterator p1) { return std::C <_Iterator>::_S_base (p1); } struct D { template <typename _Tp> static _Tp *__copy_m (_Tp * p1, _Tp * p2, _Tp *) { int _Num = p2 - p1; __builtin_memmove (0, p1, sizeof (_Tp) * _Num); } }; template <int, typename _II, typename _OI> void __copy_move_a (_II p1, _II p2, _OI p3) { D::__copy_m (p1, p2, p3); } template <int, typename _II, typename _OI> void __copy_move_a2 (_II p1, _II p2, _OI p3) { __copy_move_a <0> (std::__niter_base (p1), std::__niter_base (p2), std::__niter_base (p3)); } template <typename _II, typename _OI> void copy (_II p1, _II p2, _OI p3) { __copy_move_a2 <B::__value> (std::__miter_base (p1), std::__miter_base (p2), p3); } } template <typename _Tp> struct F { typedef _Tp *pointer; }; namespace std { template <typename _Tp> using __allocator_base = F <_Tp>; template <typename _Tp> struct allocator:__allocator_base <_Tp> {}; template <class _E> struct initializer_list { typedef _E *const_iterator; _E *_M_array; unsigned long _M_len; const_iterator begin () { return _M_array; } const_iterator end () { return begin () + 1; } }; template <typename _Alloc> struct allocator_traits { template <typename _Tp> static typename _Tp::pointer _S_pointer_helper (_Tp *); typedef decltype (_S_pointer_helper ((_Alloc *) 0)) __pointer; typedef __pointer pointer; }; } template <typename> struct __alloc_traits: std::allocator_traits <std::allocator <const char *>> {}; namespace std { struct G { template <typename _InputIterator, typename _ForwardIterator> static _ForwardIterator __uninit_copy (_InputIterator p1, _InputIterator p2, _ForwardIterator p3) { copy (p1, p2, p3); } }; template <typename _InputIterator, typename _ForwardIterator> void uninitialized_copy (_InputIterator p1, _InputIterator p2, _ForwardIterator p3) { G::__uninit_copy (p1, p2, p3); } template <typename _InputIterator, typename _ForwardIterator, typename _Tp> void __uninitialized_copy_a (_InputIterator p1, _InputIterator p2, _ForwardIterator p3, allocator <_Tp> &) { uninitialized_copy (p1, p2, p3); } struct H { typedef std::allocator <int *> _Tp_alloc_type; typedef __alloc_traits <_Tp_alloc_type>::pointer pointer; _Tp_alloc_type & _M_get_Tp_allocator (); }; template <typename _Tp, typename = std::allocator <_Tp>> struct J: H { void operator= (initializer_list <_Tp> p1) { this->assign (p1.begin (), p1.end ()); } template <typename _InputIterator, typename = std::_RequireInputIter <_InputIterator>> void assign (_InputIterator p1, _InputIterator p2) { _M_assign_dispatch (p1, p2, 0); } pointer _M_allocate_and_copy___result; template <typename _ForwardIterator> void _M_allocate_and_copy (int, _ForwardIterator p2, _ForwardIterator p3) { __uninitialized_copy_a (p2, p3, _M_allocate_and_copy___result, _M_get_Tp_allocator ()); } template <typename _InputIterator> void _M_assign_dispatch (_InputIterator p1, _InputIterator p2, int) { _M_assign_aux (p1, p2, 0); } template <typename _ForwardIterator> void _M_assign_aux (_ForwardIterator, _ForwardIterator, int); }; template <typename _Tp, typename _Alloc> template <typename _ForwardIterator> void J <_Tp, _Alloc>::_M_assign_aux (_ForwardIterator p1, _ForwardIterator p2, int) { _M_allocate_and_copy (0, p1, p2); } class I { void tabCompletion (std::J <int>&) const; }; void I::tabCompletion (J <int>&) const { J <const char *> extra; extra = { "insert" }; } }