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  1. #include <iostream>
  2. #include <functional>
  3.  
  4. using namespace std;
  5.  
  6. int caller(function<int(void*)> callback, void * arg = NULL) {
  7.   return callback(arg);
  8. }
  9.  
  10. int main()
  11. {
  12.  
  13.   const char *str = "world + dog";
  14.   caller([&](void *arg) {
  15.       printf("hello %s\n", str);
  16.       return 0;
  17.   }, NULL);
  18.  
  19.   return 0;
  20.  
  21. }
  22.  
Success #stdin #stdout 0s 3472KB
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stdin
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Standard input is empty
stdout
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hello world + dog
https://ideone.com/iNQhxe
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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