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! { dg-do run }

! { dg-options "-fbounds-check" }

! PR fortran/37746

! Ensure that too long or matching string lengths don't trigger the runtime

! error for matching string lengths, if the dummy argument is neither

! POINTER nor ALLOCATABLE or assumed-shape.

! Also check that absent OPTIONAL arguments don't trigger the check.

MODULE m

CONTAINS

  SUBROUTINE test (str, opt)

    IMPLICIT NONE

    CHARACTER(len=5) :: str

    CHARACTER(len=5), OPTIONAL :: opt

  END SUBROUTINE test

END MODULE m

PROGRAM main

  USE m

  IMPLICIT NONE

  CALL test ('abcde')  ! String length matches.

  CALL test ('abcdef') ! String too long, is ok.

END PROGRAM main

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