// Float.floatToIntBits( float ) = Returns a representation of the specified
//  floating-point value according to the IEEE 754 format

public class func_call_conv1
{

   static int f( float x)
   {
      System.out.printf("   f: x = %f , in binary: ", x);
      printBitFloat(x);
      System.out.println();

      int r;

      r = (int) (x*x);

      System.out.printf("   f: r = %d , in binary: ", r);
      printBitInt(r);
      System.out.println("\n");

      return(r);
   }

   public static void main(String[] args)
   {
      int a;
      float b;

      a = 2;
      System.out.printf("main: a = %d , in binary: ", a);
      printBitInt(a);
      System.out.println("\n");

      b = f(a);

      System.out.printf("main: b = %f , in binary: ", b);
      printBitFloat(b);
      System.out.println("\n");
   }




   /* ==========================================
      Bit pattern printing methods...
      ========================================== */
   static void printBitFloat( float x )
   {
      int i;

      for ( i = 31; i >= 0; i-- )
      {
         if ( (Float.floatToIntBits(x) & (1 << i)) != 0 )
            System.out.print("1");
         else
            System.out.print("0");
      }
   }

   static void printBitInt( int x )
   {
      int i;

      for ( i = 31; i >= 0; i-- )
      {
         if ( (x & (1 << i)) != 0 )
            System.out.print("1");
         else
            System.out.print("0");
      }
   }

}