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  1. #include <iostream>
  2.  
  3. struct A
  4. {
  5. int a = 0;
  6. void* ptr = nullptr;
  7. char data[16] {1,2,3,4};
  8. };
  9.  
  10. int main()
  11. {
  12. A a {0, nullptr, {1,2,3,4}};
  13.  
  14. for (int i = 0; i < sizeof A::data; ++ i)
  15. {
  16. std::cout << int(a.data [i]) << ' ';
  17. }
  18. }
  19.  
Success #stdin #stdout 0s 3456KB
stdin
Standard input is empty
stdout
1 2 3 4 0 0 0 0 0 0 0 0 0 0 0 0