NAME
        IEEEDPFieee -- convert IEEE single to IEEE double

   SYNOPSIS
          x   = IEEEDPFieee(  y  );
        d0/d1                 d0

        float   y;
        double  x;

   FUNCTION
        Convert IEEE single precision number to IEEE double precision.

   INPUTS
        y - IEEE single precision floating point value

   RESULT
        x - IEEE double precision floating point value

   BUGS

   SEE ALSO
        ieeedptieee()