`field_order_ff'
----------------

field_order_ff()
     :: Order of the current base field.

RETURN
     integer

   * Returns the order of the current base field.

   * Q is returned if the current base field is GF(Q).

     [0] field_order_ff();
     field_order_ff : current_ff is not set
     return to toplevel
     [0] setmod_ff(3);
     3
     [1] field_order_ff();
     3
     [2] setmod_ff(x^2+x+1);
     x^2+x+1
     [3] field_order_ff();
     4

References
     *Note `setmod_ff': setmod_ff

