C++ Tutorial/Operators statements/bitwise OR — различия между версиями

#include <iostream>
using std::cout;
#include <iomanip>
using std::endl;
using std::setw;
void displayBits( unsigned );
int main()
{
   unsigned number1;
   unsigned number2;
   unsigned mask;
   unsigned setBits;
   
   
   number1 = 15;
   setBits = 241;
   cout << "\nThe result of combining the following\n";
   displayBits( number1 );
   displayBits( setBits );
   cout << "using the bitwise inclusive OR operator | is\n";
   displayBits( number1 | setBits );
   return 0;
}
//Quote from
//C++ How to Program (5th Edition) (How to Program) (Paperback)
//by Harvey & Paul) Deitel & Associates 
//Publisher: Prentice Hall; 5 edition (January 5, 2005)
//Language: English
//ISBN-10: 0131857576
//ISBN-13: 978-0131857575
void displayBits( unsigned value ) {
   const int SHIFT = 8 * sizeof( unsigned ) - 1;
   const unsigned MASK = 1 << SHIFT;
   cout << setw( 10 ) << value << " = ";
   for ( unsigned i = 1; i <= SHIFT + 1; i++ ) {
      cout << ( value & MASK ? "1" : "0" );
      value <<= 1;
      if ( i % 8 == 0 )
         cout << " ";
   }
   cout << endl;
}

#include <iostream>
using namespace std;
int main()
{
  char ch;
  for(int i = 0 ; i < 10; i++)  {
    ch = "A" + i;
    // This statement turns on the 6th bit.
    cout << ch << " " ;
    ch = ch | 32;
    cout << ch << "\n";
  }
  return 0;
}