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  1. #include <functional>
  2. #include <iostream>
  3.  
  4. int foo(double d) { std::cout << d << '\n'; return 0; }
  5.  
  6. char bar(double d) { std::cout << 2*d << '\n'; return '0'; }
  7.  
  8. int main() {
  9. 	std::function<void(double)> cb;
  10.  
  11. 	cb = foo; cb(1.0);
  12.  
  13. 	cb = bar; cb(2.0);
  14.  
  15. 	return 0;
  16. }
Success #stdin #stdout 0s 16064KB
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https://ideone.com/CvyA1R
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
secret

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