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  1. #include <iostream>
  2.  
  3. struct foo
  4. {
  5.     void bar(int i) 
  6.     {
  7.         std::cout << __PRETTY_FUNCTION__ << ' ' << i << '\n';
  8.     }
  9. };
  10.  
  11. void func(void(*p)(void *, int i), void *userdata)
  12. {
  13.     (*p)(userdata, 42);
  14. }
  15.  
  16. int main()
  17. {
  18.     foo f;
  19.     func([](void *userdata, int i) {
  20.             static_cast<foo *>(userdata)->bar(i);
  21.         }, &f);
  22. }
  23.  
Success #stdin #stdout 0s 3344KB
comments (?)
stdin 
Standard input is empty
stdout 
void foo::bar(int) 42
https://ideone.com/8kyyAU
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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