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  1. #include <functional>
  2. #include <iostream>
  3.  
  4. typedef std::function<void(int)> fp_t;
  5.  
  6. void bar(int) {}
  7.  
  8. void baz(fp_t fp)
  9. {
  10.     if (fp != nullptr)
  11.     {
  12.         std::cout << "true \n";
  13.         fp(0);
  14.     }
  15.     else
  16.     {
  17.         std::cout << "false \n";
  18.     }
  19. }
  20.  
  21. int main()
  22. {
  23.     bool foo = false;
  24.     baz(foo ? &bar : nullptr);
  25. }
Runtime error #stdin #stdout 0s 2896KB
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Standard input is empty
stdout
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Standard output is empty
https://ideone.com/fUvN6i
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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