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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. typedef union {
  5.     int Value;
  6.     struct SubStruct1 {
  7.         int Value;
  8.     } SubStruct1;
  9.  
  10.     struct SubStruct2 {
  11.         int Value;
  12.     } SubStruct2;
  13.  
  14.     struct SubStruct3 {
  15.         int Value;
  16.     } SubStruct3;
  17. } T;
  18.  
  19. void print( T *t )
  20. {
  21.     printf("%d\n",t->Value);
  22. }
  23.  
  24. int main()
  25. {
  26.     T t;
  27.     t.SubStruct1.Value = 1;
  28.     print(&t);
  29.     t.SubStruct2.Value = 2;
  30.     print(&t);
  31.     t.SubStruct3.Value = 3;
  32.     print(&t);
  33.  
  34.     return 0;
  35. }
  36.  
  37.  
Success #stdin #stdout 0s 2156KB
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https://ideone.com/nqgqvm
language:
C99 (gcc 8.3)
created:
10 years ago
visibility:
public

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