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! { dg-do run }

! { dg-additional-sources c_char_driver.c }

! Verify that character dummy arguments for bind(c) procedures can work both

! by-value and by-reference when called by either C or Fortran.

! PR fortran/32732

module c_char_tests

  use, intrinsic :: iso_c_binding, only: c_char

  implicit none

contains

  subroutine param_test(my_char, my_char_2) bind(c)

    character(c_char), value :: my_char

    character(c_char), value :: my_char_2

    if(my_char /= c_char_'y') call abort()

    if(my_char_2 /= c_char_'z') call abort()

    call sub1(my_char)

  end subroutine param_test

  subroutine sub0() bind(c)

    call param_test('y', 'z')

  end subroutine sub0

  subroutine sub1(my_char_ref) bind(c)

    character(c_char) :: my_char_ref

    if(my_char_ref /= c_char_'y') call abort()

  end subroutine sub1

end module c_char_tests

! { dg-final { cleanup-modules "c_char_tests" } }