1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
! { dg-do run }
! { dg-additional-sources c_f_pointer_logical_driver.c }
! Verify that c_f_pointer exists for C logicals (_Bool).
module c_f_pointer_logical
use, intrinsic :: iso_c_binding, only: c_bool, c_f_pointer, c_ptr, c_int
contains
subroutine test_scalar(c_logical_ptr) bind(c)
type(c_ptr), value :: c_logical_ptr
logical(c_bool), pointer :: f03_logical_ptr
call c_f_pointer(c_logical_ptr, f03_logical_ptr)
if(f03_logical_ptr .neqv. .true.) call abort ()
end subroutine test_scalar
subroutine test_array(c_logical_array, num_elems) bind(c)
type(c_ptr), value :: c_logical_array
integer(c_int), value :: num_elems
logical(c_bool), pointer, dimension(:) :: f03_logical_array
integer :: i
call c_f_pointer(c_logical_array, f03_logical_array, (/ num_elems /))
! Odd numbered locations are true (even numbered offsets in C)
do i = 1, num_elems, 2
if(f03_logical_array(i) .neqv. .true.) call abort ()
end do
! Even numbered locations are false.
do i = 2, num_elems, 2
if(f03_logical_array(i) .neqv. .false.) call abort ()
end do
end subroutine test_array
end module c_f_pointer_logical
! { dg-final { cleanup-modules "c_f_pointer_logical" } }
|
