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! { dg-do run }
! { dg-options "-fdump-tree-original" }
!
! PR fortran/41298
!
! Check that c_null_ptr default initializer is really applied
module m
use iso_c_binding
type, public :: fgsl_file
type(c_ptr) :: gsl_file = c_null_ptr
type(c_funptr) :: gsl_func = c_null_funptr
type(c_ptr) :: NIptr
type(c_funptr) :: NIfunptr
end type fgsl_file
contains
subroutine sub(aaa,bbb)
type(fgsl_file), intent(out) :: aaa
type(fgsl_file), intent(inout) :: bbb
end subroutine
subroutine proc() bind(C)
end subroutine proc
end module m
program test
use m
implicit none
type(fgsl_file) :: file, noreinit
integer, target :: tgt
call sub(file, noreinit)
if(c_associated(file%gsl_file)) STOP 1
if(c_associated(file%gsl_func)) STOP 2
file%gsl_file = c_loc(tgt)
file%gsl_func = c_funloc(proc)
call sub(file, noreinit)
if(c_associated(file%gsl_file)) STOP 3
if(c_associated(file%gsl_func)) STOP 4
end program test
! { dg-final { scan-tree-dump-times "c_funptr.\[0-9\]+ = 0B;" 1 "original" } }
! { dg-final { scan-tree-dump-times "fgsl_file.\[0-9\]+.gsl_func = c_funptr.\[0-9\]+;" 1 "original" } }
! { dg-final { scan-tree-dump-times "c_ptr.\[0-9\]+ = 0B;" 1 "original" } }
! { dg-final { scan-tree-dump-times "fgsl_file.\[0-9\]+.gsl_file = c_ptr.\[0-9\]+;" 1 "original" } }
! { dg-final { scan-tree-dump-times "NIptr = 0B" 0 "original" } }
! { dg-final { scan-tree-dump-times "NIfunptr = 0B" 0 "original" } }
! { dg-final { scan-tree-dump-times "bbb =" 0 "original" } }
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