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  1.     #include <functional>
  2.  
  3.     struct C {
  4.         int F(int, char) { return 0; }
  5.     };
  6.  
  7.     template<typename S>
  8.     struct delete_class;
  9.  
  10.     template<typename R, typename C, typename... Ts>
  11.     struct delete_class<R (C::*)(Ts...)>
  12.     {
  13.         typedef R(type)(Ts...);
  14.     };
  15.  
  16.     int main()
  17.     {
  18.         static_assert(
  19.             std::is_same<delete_class<decltype(&C::F)>::type,
  20.             int(int, char)
  21.             >::value, "!");
  22.  
  23.         using namespace std::placeholders;
  24.  
  25.         std::function<delete_class<decltype(&C::F)>::type> f;
  26.         C c;
  27.         f = std::bind(&C::F, &c, _1, _2);
  28.     }
  29.  
Success #stdin #stdout 0s 3024KB
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https://ideone.com/FHPJdO
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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