/*
 *  call-seq:
 *     ~bv -> bv
 *     bv.not -> bv
 *  
 *  Perform a boolean _not_ operation on +bv+
 *  */
VALUE
frt_bv_not(VALUE self)
{
    BitVector *bv;
    GET_BV(bv, self);
    return Data_Wrap_Struct(cBitVector, NULL, &bv_destroy, bv_not(bv));
}