subroutine subb(k)
          real(8), intent(inout) :: k(:)
          k=k+1
        endsubroutine

        subroutine subc(w,k)
          real(8), intent(in) :: w(:)
          real(8), intent(out) :: k(size(w))
          k=w+1
        endsubroutine

        function t0(value)
          character value
          character t0
          t0 = value
        endfunction