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  1. #include <iostream>
  2. #include <string>
  3. #include <functional>
  4.  
  5. class Foo
  6. {
  7. public:
  8.     Foo() {
  9.         arry[0] = "foo";
  10.         arry[1] = "bar";
  11.         arry[2] = "baz";
  12.         arry[3] = "qux";
  13.     }
  14.  
  15.     // template <typename T>
  16.     // void each(T func)
  17.     // void each(const std::function<std::string (std::string ele)> &func)
  18.     void each(std::string (* func)(std::string ele))
  19.     {
  20.         for(int i = 0; i < size; i++) {
  21.             func(arry[i]);
  22.         }
  23.     }
  24.  
  25.     int size = 4;
  26.     std::string arry[4];
  27. };
  28.  
  29. int main(void)
  30. {
  31.     Foo foo;
  32.  
  33.     foo.each(
  34.         [](std::string str) -> std::string {
  35.             std::cout << str << std::endl;
  36.             return str;
  37.         }
  38.     );
  39.  
  40.     return 0;
  41. }
Success #stdin #stdout 0s 15240KB
comments (?)
stdin
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Standard input is empty
stdout
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foo
bar
baz
qux
https://ideone.com/lJdnsz
language:
C++14 (clang 8.0)
created:
7 years ago
visibility:
public

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