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  1. #include <iostream>
  2.  
  3. class Data
  4. {
  5.   char data[5];
  6. };
  7.  
  8. union Content
  9. {
  10.   double *pimpl;
  11.   Data old;
  12. };
  13.  
  14. int main() {
  15. 	std::cout << "sizeof(Data): " << sizeof(Data) << '\n';
  16. 	std::cout << "sizeof(double *): " << sizeof(double *) << '\n';
  17. 	std::cout << "sizeof(Content): " << sizeof(Content) << '\n';
  18. 	return 0;
  19. }
Success #stdin #stdout 0s 3340KB
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stdin
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Standard input is empty
stdout
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sizeof(Data): 5
sizeof(double *): 4
sizeof(Content): 8
https://ideone.com/o5icG1
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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