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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     unsigned int c = 0x1234;     
  6.     unsigned int b = (c & 0xf) | ((c & 0xf0) << 4) |
  7.                      ((c & 0xf00) << 8) | ((c & 0xf000) << 12);
  8.     b |= (b << 4);
  9.  
  10.     printf("%x -> %x", c, b);
  11.     return 0;
  12. }
Success #stdin #stdout 0s 3296KB
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stdin
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Standard input is empty
stdout
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1234 -> 11223344
https://ideone.com/ZZXozy
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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