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  1. #include <stdio.h>
  2.  
  3. struct ONETWO_s{
  4.     union{
  5.     	int I;
  6.         struct
  7.         {
  8. 			unsigned one : 1;	        
  9. 			signed v : 1;
  10.         } s;
  11.     };	
  12.  
  13. } ONETWO_d={2};
  14.  
  15. typedef struct ONETWO_s ONETWO;
  16.  
  17. int main(void) {
  18. 	ONETWO x=ONETWO_d;
  19.  
  20. 	printf("%d\n",x.I);
  21. 	x.s.v++;
  22. 	printf("%d\n",x.I);
  23. 	x.s.v++;	
  24. 	printf("%d\n",x.I);	
  25. 	x.s.v++;	
  26. 	printf("%d\n",x.I);		
  27. 	return 0;
  28. }
Success #stdin #stdout 0s 4352KB
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https://ideone.com/YqhFTa
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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