Printing an unsigned integer in bits : binary bit « Data Types « C++ Tutorial

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C++ Tutorial » Data Types » binary bit

2.13.1.Printing an unsigned integer in bits

#include <iostream>

using std::cout;

using std::cin;

using std::endl;



#include <iomanip>

using std::setw;



int main()

{

   unsigned value = 123;

   const int SHIFT = 8 * sizeof( unsigned ) - 1;

   const unsigned MASK = 1 << SHIFT;



   for ( int i = 1; i <= SHIFT + 1; i++ ) 

   {

      cout << ( value & MASK ? '1' : '0' );

      value <<= 1;



      if ( i % 8 == 0 )

         cout << ' ';

   }



   cout << endl;

   return 0;

}

00000000 00000000 00000000 01111011

2.13.binary bit
	2.13.1.	Printing an unsigned integer in bits
	2.13.2.	Display the bits within a byte.
	2.13.3.	Bitwise operators: Complement, AND, OR
	2.13.4.	Bitwise operator: ^
	2.13.5.	Use masks to select or set a particular flag bit

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