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  1. #include <stdio.h>
  2.  
  3. int rotateLeft(int x, int n) {
  4.     int neg_one = (~1 + 1);
  5.     int n_bit_mask = (1 << n) + neg_one;
  6.     int right_side = x << n;
  7.     int left_side = x >> (32 + (~n + 1));
  8.     return right_side | (left_side & n_bit_mask);
  9. }
  10.  
  11. int main()
  12. {
  13. 	int m = 0x40000000;
  14.     printf("0x%X", m << 1);
  15.     return 0;
  16. }
Success #stdin #stdout 0s 5448KB
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stdin
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Standard input is empty
stdout
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0x80000000
https://ideone.com/KmJ647
language:
C (gcc 8.3)
created:
3 years ago
visibility:
public

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