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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. union u1 {
  5. 	char a[9];	
  6. 	char b[3];
  7. };
  8. union u2 {
  9. 	//char a[3];
  10. 	//char b[9];
  11. 	int c;
  12. };
  13. int main() {
  14. 	// your code goes here
  15. 	int i;
  16. 	printf("size of int = %d\n", sizeof(i));
  17.  
  18. 	u1 union1;
  19. 	printf("size of u1 = %d\n", sizeof(u1));
  20.  
  21. 	u2 union2;
  22. 	printf("size of u2 = %d\n", sizeof(u2));
  23. 	return 0;
  24. }
Success #stdin #stdout 0s 4448KB
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stdin
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Standard input is empty
stdout
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size of int = 4
size of u1 = 9
size of u2 = 4
https://ideone.com/YWlJmB
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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