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! { dg-do run { target c99_runtime } }
! { dg-additional-sources ISO_Fortran_binding_12.c }
!
! Test the fix for PR90093. The additional source is the main program.
!
! Contributed by Reinhold Bader <Bader@lrz.de>
!
module mod_optional
use, intrinsic :: iso_c_binding
implicit none
integer :: status = 0
contains
subroutine foo_opt(this, that, sz, flag) bind(c)
real(c_float), optional :: this(:)
real(c_float), optional :: that(*)
integer(c_int), optional :: sz
integer(c_int), value :: flag
if (flag == 0) then
if (.not. present(this) .or. present(that) .or. present(sz)) then
write(*,*) 'FAIL 1', present(this), present(that), present(sz)
status = status + 1
end if
else if (flag == 1) then
if (present(this) .or. .not. present(that) .or. .not. present(sz)) then
write(*,*) 'FAIL 2', present(this), present(that), present(sz)
status = status + 1
end if
if (sz /= 12) then
write(*,*) 'FAIL 3'
status = status + 1
end if
else if (flag == 2) then
if (present(this) .or. present(that) .or. present(sz)) then
write(*,*) 'FAIL 4', present(this), present(that), present(sz)
status = status + 1
end if
end if
end subroutine foo_opt
subroutine write_res() BIND(C)
! Add a check that the fortran missing optional is accepted by the
! bind(C) procedure.
call foo_opt (flag = 2)
if (status == 0) then
write(*,*) 'OK'
else
stop 1
end if
end subroutine
end module mod_optional
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