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  1. #include <stdio.h>
  2.  
  3. struct A
  4. {
  5.     int i;
  6.     char c;
  7. };
  8.  
  9. int main()
  10. {
  11.     union {
  12.         struct A a;
  13.         int i[2];
  14.     } u;
  15.  
  16.     memset(&u.a, 0, sizeof u.a);
  17.     printf("%d\n", u.i[1]);
  18.  
  19.     u.a.c = 1000;
  20.     printf("%d\n", u.i[1]);
  21.  
  22.     return 0;
  23. }
  24.  
Success #stdin #stdout 0s 1788KB
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https://ideone.com/ovlECG
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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