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  1. #include <iostream>
  2. using namespace std;
  3. template <class F>
  4. auto cify_no_args(F&& f) {
  5.   static F fn = std::forward<F>(f);
  6.   return [] {
  7.     return fn();
  8.   };
  9. }
  10. void some_c_func(int (*callback)()) {
  11. 	std::cout << callback() << "\n";
  12. }
  13.  
  14. int main() {
  15. 	for (int i = 10; i < 20; ++i) {
  16. 		some_c_func(cify_no_args([=]() {
  17. 			return i;
  18. 		}));
  19. 	}
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 15232KB
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https://ideone.com/Y60oEz
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
secret

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