gcc/testsuite/g++.dg/pr55106.C

   1 /* { dg-do compile } */
   2 /* { dg-options "-c -O3" } */
   3 template<typename _Tp> struct A {
   4   typedef _Tp *pointer;
   5   typedef _Tp& reference;
   6   typedef _Tp& const_reference;
   7   template<typename>struct rebind
   8   {
   9     typedef A other;
  10   };
  11 };
  12
  13 template<typename _Alloc>struct __alloc_traits
  14 {
  15   typedef typename _Alloc::pointer         pointer;
  16   typedef typename _Alloc::reference       reference;
  17   typedef typename _Alloc::const_reference const_reference;
  18   template<typename _Tp>struct rebind
  19   {
  20     typedef typename _Alloc::template rebind<_Tp>::other other;
  21   };
  22 };
  23 template<typename _Tp, typename _Alloc>struct B
  24 {
  25   typedef typename __alloc_traits<_Alloc>::template rebind<
  26       _Tp>::other _Tp_alloc_type;
  27   typedef typename __alloc_traits<_Tp_alloc_type>::pointer pointer;
  28   struct F
  29   {
  30     pointer _M_start;
  31   };
  32   F _M_impl;
  33 };
  34 template<typename _Tp, typename _Alloc = A<_Tp> >class vec : B<_Tp, _Alloc>{
  35   typedef B<_Tp, _Alloc>                 _Base;
  36   typedef typename _Base::_Tp_alloc_type _Tp_alloc_type;
  37   typedef __alloc_traits<_Tp_alloc_type> _Alloc_traits;
  38
  39 public:
  40   typedef _Tp                                     value_type;
  41   typedef typename _Alloc_traits::reference       reference;
  42   typedef typename _Alloc_traits::const_reference const_reference;
  43   reference operator[](int p1)
  44   {
  45     return *(this->_M_impl._M_start + p1);
  46   }
  47
  48   const_reference operator[](long) const;
  49 };
  50
  51 int a[17];
  52 class C {
  53   vec<int> m_value;
  54   void opModDivGuts(const C&);
  55   int mostSetBitP1() const;
  56 };
  57 void C::opModDivGuts(const C& p1)
  58 {
  59   int b = p1.mostSetBitP1(), c = b + 1;
  60   int d[16];
  61
  62   for (int i = c; i; i--)
  63     a[i] = p1.m_value[i] << b;
  64
  65   for (int i = 0; i < c; i++)
  66     m_value[i] = d[i] >> b << -b;
  67 }