NAME
    IEEEDPFloor -- compute Floor function of IEEE double precision number

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

    double  x,y;

FUNCTION
    Calculate the largest integer less than or equal to x and return it.
    This value may have more than 32 bits of significance.

INPUTS
    y -- IEEE double precision floating point value

RESULT
    x -- IEEE double precision floating point value

BUGS

SEE ALSO
    IEEEDPCeil