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How to swap the first 4 bits of a number with the last 4 bits in C++

1 Answer

0 votes
#include <iostream>
   
using namespace std; 
   
void print_bits(unsigned int n) { 
    for (int i = 7; i >= 0; i--)
       cout << ((n >> i) & 1);
    cout << endl;
}
   
int main() 
{ 
    int n = 92; 

    print_bits(n);

    n = ((n & 0xf0) >> 4) | ((n & 0x0f) << 4);
    
    print_bits(n);
         
    return 0; 
} 
  
  
   
/*
run:
   
01011100
11000101

*/

 




answered Mar 13 by avibootz
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