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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4.  
  5. 	short i = -6566;
  6.  
  7. 	//char a[2];
  8.  
  9. 	unsigned char a[2];
  10.  
  11. 	a[0]=(i>>8) & 0xff;
  12. 	a[1]=i & 0xff;
  13.  
  14. 	//short j = (a[0] << 8) | (0x00ff & a[1]);
  15. 	short j = (a[0] << 8) | a[1];
  16.  
  17. 	printf("size = %d,i = %d\n",sizeof(i),i);
  18.  
  19. 	printf("j = %d,%d\n",j,(unsigned short)j);
  20.  
  21. 	printf("a0 = %0x,a1=%0x \n",a[0],a[1]);
  22.  
  23. 	printf("a0 = %0x,a1=%0x \n",(unsigned char)a[0],(unsigned char)a[1]);
  24.  
  25. 	return 0;
  26. }
  27.  
Success #stdin #stdout 0s 5272KB
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stdin
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Standard input is empty
stdout
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size = 2,i = -6566
j = -6566,58970
a0 = e6,a1=5a 
a0 = e6,a1=5a
https://ideone.com/lnE50d
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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