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  1. #include <functional>
  2. #include <iostream>
  3.  
  4. struct foo {} x;
  5.  
  6. void run(std::function<std::string(const foo&)> func)
  7. {
  8.    std::cout << func(x);
  9. }
  10.  
  11.  
  12. int main(){
  13.  
  14.   auto get_functor = [&](const bool check) {
  15.       return  [&](const foo& sr)->std::string {
  16.          if(check){
  17.               return "some string";
  18.           }
  19.           return "another string";
  20.       };
  21.   };
  22.   run(get_functor(true));
  23. }
Success #stdin #stdout 0s 15240KB
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stdin
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Standard input is empty
stdout
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another string
https://ideone.com/gpz109
language:
C++14 (clang 8.0)
created:
9 years ago
visibility:
secret

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