# include <stdio.h>

//
//  Program 12.3, Stephen Kochan, Programming in C.
//
int main ( void );
unsigned int shift ( unsigned int w, int n );

int main ( void )
{
  unsigned int w1 = 0177777u;
  unsigned int w2 = 0444u;

  printf ( "%o\t%o\n", shift ( w1,  5 ), w1 << 5 );
  printf ( "%o\t%o\n", shift ( w1, -6 ), w1 >> 6 );
  printf ( "%o\t%o\n", shift ( w1,  0 ), w2 >> 0 );
  printf ( "%o\n", shift ( shift ( w1, -3 ), 3 ) );

  return 0;
}

unsigned int shift ( unsigned int w, int n )
{
  unsigned int value;

  if ( 0 < n )
  {
    value = ( w << n );
  }
  else
  {
    value = ( w >> n );
  }
  return value;
}