gcc/testsuite/g++.dg/tree-ssa/pr24351-3.C

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3 namespace sigc {
   4     template <class T_type>     struct type_trait     {
   5         typedef T_type& pass;
   6         typedef const T_type& take;
   7         typedef T_type* pointer;
   8     };
   9     template <class T_type>     struct type_trait<T_type&>     {
  10         typedef T_type& pass;
  11     };
  12     template<>     struct type_trait<void>     {
  13         typedef void pass;
  14     };
  15     template <class T_base, class T_derived>     struct is_base_and_derived     {
  16         struct big {
  17             char memory[64];
  18         };
  19         static big is_base_class_(...);
  20         static char is_base_class_(typename type_trait<T_base>::pointer);
  21         static const bool value = sizeof(is_base_class_(reinterpret_cast<typename type_trait<T_derived>::pointer>(0))) == sizeof(char);
  22     };
  23     struct nil;
  24     struct functor_base {
  25     };
  26     template <class T_functor, bool I_derives_functor_base=is_base_and_derived<functor_base,T_functor>::value>     struct functor_trait     {
  27         typedef typename T_functor::result_type result_type;
  28         typedef T_functor functor_type;
  29     };
  30     struct adaptor_base : public functor_base {
  31     };
  32     template <class T_functor, class T_arg1=void,class T_arg2=void,class T_arg3=void,class T_arg4=void,class T_arg5=void,class T_arg6=void,class T_arg7=void, bool I_derives_adaptor_base=is_base_and_derived<adaptor_base,T_functor>::value>     struct deduce_result_type     {
  33         typedef typename functor_trait<T_functor>::result_type type;
  34     };
  35     template <class T_functor>     struct adaptor_functor
  36         : public adaptor_base     {
  37         template <class T_arg1=void,class T_arg2=void,class T_arg3=void,class T_arg4=void,class T_arg5=void,class T_arg6=void,class T_arg7=void>        struct deduce_result_type       {
  38             typedef typename sigc::deduce_result_type<T_functor, T_arg1,T_arg2,T_arg3,T_arg4,T_arg5,T_arg6,T_arg7>::type type;
  39         };
  40         typedef typename functor_trait<T_functor>::result_type result_type;
  41         template <class T_arg1,class T_arg2>    typename deduce_result_type<T_arg1,T_arg2>::type operator()(T_arg1 _A_arg1,T_arg2 _A_arg2) const        {
  42             return functor_(_A_arg1,_A_arg2);
  43         }
  44         explicit adaptor_functor(const T_functor& _A_functor) : functor_(_A_functor) {
  45         }
  46         mutable T_functor functor_;
  47     };
  48     template <class T_functor, bool I_isadaptor = is_base_and_derived<adaptor_base, T_functor>::value>     struct adaptor_trait;
  49     template <class T_functor>     struct adaptor_trait<T_functor, true>     {
  50         typedef T_functor adaptor_type;
  51     };
  52     template <class T_functor>     struct adaptor_trait<T_functor, false>     {
  53         typedef typename functor_trait<T_functor>::functor_type functor_type;
  54         typedef adaptor_functor<functor_type> adaptor_type;
  55     };
  56     template <class T_functor>     struct adapts
  57         : public adaptor_base     {
  58         typedef typename adaptor_trait<T_functor>::adaptor_type adaptor_type;
  59         explicit adapts(const T_functor& _A_functor) : functor_(_A_functor) {
  60         }
  61         mutable adaptor_type functor_;
  62     };
  63     template <class T_type>     struct unwrap_reference     {
  64         typedef T_type type;
  65     };
  66     template <class T_type>     class bound_argument     {
  67     public:
  68         bound_argument(const T_type& _A_argument) : visited_(_A_argument) {
  69         }
  70         inline T_type& invoke() {
  71         }
  72         T_type visited_;
  73     };
  74     template <int I_location, class T_functor, class T_type1=nil,class T_type2=nil,class T_type3=nil,class T_type4=nil,class T_type5=nil,class T_type6=nil,class T_type7=nil>     struct bind_functor;
  75     template <class T_functor, class T_bound>     struct bind_functor<0, T_functor, T_bound, nil,nil,nil,nil,nil,nil> : public adapts<T_functor>     {
  76         typedef typename adapts<T_functor>::adaptor_type adaptor_type;
  77         template <class T_arg1=void,class T_arg2=void,class T_arg3=void,class T_arg4=void,class T_arg5=void,class T_arg6=void,class T_arg7=void>        struct deduce_result_type       {
  78             typedef typename adaptor_type::template deduce_result_type<typename type_trait<typename unwrap_reference<T_bound>::type>::pass, typename type_trait<T_arg1>::pass, typename type_trait<T_arg2>::pass, typename type_trait<T_arg3>::pass, typename type_trait<T_arg4>::pass, typename type_trait<T_arg5>::pass, typename type_trait<T_arg6>::pass>::type type;
  79         };
  80         typedef typename adaptor_type::result_type result_type;
  81         result_type operator()()        {
  82             return this->functor_.template operator()<typename type_trait<typename unwrap_reference<T_bound>::type>::pass> (bound_.invoke());
  83         }
  84         template <class T_arg1>         typename deduce_result_type<T_arg1>::type operator()(T_arg1 _A_arg1)    {
  85             return this->functor_.template operator()<typename type_trait<typename unwrap_reference<T_bound>::type>::pass, typename type_trait<T_arg1>::pass>         (bound_.invoke(), _A_arg1);
  86         }
  87         bind_functor(typename type_trait<T_functor>::take _A_func, typename type_trait<T_bound>::take _A_bound) : adapts<T_functor>(_A_func), bound_(_A_bound) {
  88         }
  89         bound_argument<T_bound> bound_;
  90     };
  91     template <int I_location, class T_bound1, class T_functor> inline bind_functor<I_location, T_functor, T_bound1>     bind(const T_functor& _A_func, T_bound1 _A_b1)     {
  92         return bind_functor<I_location, T_functor, T_bound1>(_A_func, _A_b1);
  93     };
  94 }
  95 struct foo {
  96     typedef int result_type;
  97     int operator()(int i, int j);
  98 };
  99 int main() {
 100     sigc::bind<0>(sigc::bind<0>(foo(),7),8)();
 101 }