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  1. #include <iostream>
  2. #include <array>
  3. #include <vector>
  4. using namespace std;
  5.  
  6. void func3()
  7. {
  8.   for (auto & v : ([]() -> std::vector<int>& { static std::vector<int> vec {1, 2, 3, 4}; return vec; })())
  9.     cout << ' ' << v;
  10. }
  11.  
  12. void func4()
  13. {
  14.   for (auto & v : ([](){ static std::array<int, 4> arr {1, 2, 3, 4}; return arr; })())
  15.     cout << ' ' << v;
  16. }
  17.  
  18. int main() {
  19.   func3();
  20.   func4();
  21.   return 0;
  22. }
Success #stdin #stdout 0s 4540KB
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stdin
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Standard input is empty
stdout
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 1 2 3 4 1 2 3 4
https://ideone.com/Yiiz6I
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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