pip-install-ghxuqwgs/numpy_78e94bf2b6094bf9a1f3d92042f9bf46/numpy/f2py/tests/src/mixed/foo_free.f90

module foo_free
contains
  subroutine bar13(a)
    !f2py intent(out) a
    integer a
    a = 13
  end subroutine bar13
end module foo_free