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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/c_f_pointer_logical.f03
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Diffstat (limited to 'gcc/testsuite/gfortran.dg/c_f_pointer_logical.f03')
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diff --git a/gcc/testsuite/gfortran.dg/c_f_pointer_logical.f03 b/gcc/testsuite/gfortran.dg/c_f_pointer_logical.f03
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+! { 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" } }