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  1. #include <stdio.h>
  2.  
  3. typedef union{
  4.  
  5. 	struct{
  6. 		unsigned led0  :1;
  7. 		unsigned led1  :1;
  8. 		unsigned led2  :1;
  9. 		unsigned led3  :1;
  10. 		unsigned led4  :1;
  11. 		unsigned led5  :1;
  12. 		unsigned led6  :1;
  13. 		unsigned led7  :1;
  14. 	};
  15. 	unsigned char byte;
  16.  
  17. }led; 
  18.  
  19. int main(void) {
  20.  
  21. 	led y;
  22. 	y.led0 =0;
  23. 	y.led1 =0;
  24. 	y.led2 =0;
  25. 	y.led3 =0;
  26.  
  27. 	y.led4 =1;
  28. 	y.led5 =1;
  29. 	y.led6 =1;
  30. 	y.led7 =1;
  31. 	int x;
  32. 	x =y.byte;
  33. 	printf("%d\n", x);
  34. 	return 0;
  35. }
Success #stdin #stdout 0s 5460KB
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https://ideone.com/2LfW4s
language:
C (gcc 8.3)
created:
2 years ago
visibility:
public

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