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! { dg-do run }

! { dg-additional-sources bind_c_usage_17_c.c }

!

! PR fortran/37201

!

!

!

MODULE mod

  INTERFACE

    FUNCTION cdir() BIND(C,name="cdir") RESULT(r)

      USE iso_c_binding

      CHARACTER(kind=C_CHAR) :: r

    END FUNCTION

  END INTERFACE

END MODULE

PROGRAM test

  USE mod

  integer :: i = -43

  character(len=1) :: str1

  character(len=4) :: str4

  str1 = 'x'

  str4 = 'xyzz'

  str1 = cdir()

  if(str1 /= '/') call abort()

  str4 = cdir()

  if(str4 /= '/' .or. ichar(str4(2:2)) /= 32) call abort()

  i   = ICHAR(cdir())

  if (i /= 47) call abort()

  str4 = 'xyzz'

  WRITE(str4,'(a)') cdir()

  if(str4 /= '/' .or. ichar(str4(2:2)) /= 32) call abort()

  str4 = 'xyzz'

  WRITE(str4,'(i0)') ICHAR(cdir())

  if(str4 /= '47' .or. ichar(str4(3:3)) /= 32) call abort()

END PROGRAM

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