get_double_array Subroutine

  subroutine get_double_array(this, path, array)
    use fson_value_m, only: type_array, fson_value_get, fson_value_count, &
      fson_value
    implicit none

    type(fson_value), pointer :: this, p, element
    character(len=*), optional :: path
    integer :: index, count
    real(kind(1.0D0)), dimension(:) :: array

    nullify(p)

    ! resolve the path to the value
    if (present(path)) then
       call get_by_path(this=this, path=path, p=p)
    else
       p => this
    end if

    if (.not.associated(p)) then
       print *, "Unable to resolve path: ", path
       call exit(1)
    end if

    if (p % value_type == TYPE_ARRAY) then
       count = fson_value_count(p)
       do index = 1, count
          element => fson_value_get(p, index)
          array(index) = element%value_double
       end do
    else
       print *, "Resolved value is not an array. ", path
       call exit(1)
    end if

  end subroutine get_double_array