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Subject: Re: [PATCH] Fortran: ordering of hidden procedure arguments
 [PR107441]
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From: Mikael Morin <morin-mikael@orange.fr>
To: Harald Anlauf <anlauf@gmx.de>, fortran <fortran@gcc.gnu.org>,
 gcc-patches <gcc-patches@gcc.gnu.org>
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Le 30/10/2022 à 20:23, Mikael Morin a écrit :
> Another probable issue is your change to create_function_arglist changes 
> arglist/hidden_arglist without also changing typelist/hidden_typelist 
> accordingly.  I think a change to gfc_get_function_type is also 
> necessary: as the function decl is changed, the decl type need to be 
> changed as well.
> 
> I will see whether I can manage to exhibit testcases for these issues.
> 
Here is a test for the type vs decl mismatch.

! { dg-do run }
!
! PR fortran/107441
! Check that procedure types and procedure decls match when the procedure
! has both chaacter-typed and optional value args.

program p
   interface
     subroutine i(c, o)
       character(*) :: c
       integer, optional, value :: o
     end subroutine i
   end interface
   procedure(i), pointer :: pp
   call pp("abcd")
contains
   subroutine s(c, o)
     character(*) :: c
     integer, optional, value :: o
     if (present(o)) stop 1
     if (len(c) /= 4) stop 2
     if (c /= "abcd") stop 3
   end subroutine s
end program p