Using the bitwise shift operators : Operator « Language « C++






Using the bitwise shift operators

  
#include <iostream>
#include <iomanip>
using namespace std;
void displayBits( unsigned );

int main()
{
   unsigned number1 = 960;

   cout << "The result of left shifting\n";
   displayBits( number1 );
   cout << "8 bit positions using the left "
        << "shift operator is\n";
   displayBits( number1 << 8 );
   cout << "\nThe result of right shifting\n";
   displayBits( number1 );
   cout << "8 bit positions using the right "
        << "shift operator is\n";
   displayBits( number1 >> 8 );
   return 0;
}

void displayBits( unsigned value )
{
   unsigned c, displayMask = 1 << 15;

   cout << setw( 7 ) << value << " = ";

   for ( c = 1; c <= 16; c++ ) {
      cout << ( value & displayMask ? '1' : '0' );
      value <<= 1;

      if ( c % 8 == 0 )
         cout << ' ';
   }
}
  
    
  








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