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  1. // Copyright 2017 <Biagio Festa>
  2. #include <iostream>
  3. #include <vector>
  4. #include <list>
  5.  
  6. template <template <typename, typename...> class Container, typename T,
  7.           typename... Args>
  8. std::ostream& operator<<(std::ostream& os, const Container<T, Args...>& c) {
  9.   os << "[";
  10.   for (const auto& v : c) {
  11.     os << v << " ";
  12.   }
  13.   os << "]";
  14.   return os;
  15. }
  16.  
  17. int main(int argc, char *argv[]) {
  18.   std::vector<int> v = {1, 2, 3, 4};
  19.   std::list<int> l = {1, 2, 3, 4};
  20.  
  21.   std::cout << v << '\n';
  22.   std::cout << l << '\n';
  23.  
  24.   return 0;
  25. }
  26.  
Success #stdin #stdout 0s 15240KB
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Standard input is empty
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[1 2 3 4 ]
[1 2 3 4 ]
https://ideone.com/QqaXtM
language:
C++14 (clang 8.0)
created:
8 years ago
visibility:
public

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