1 files changed, 49 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/extends_6.f03 b/gcc/testsuite/gfortran.dg/extends_6.f03
new file mode 100644
index 000000000..a50a9b751
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/extends_6.f03
@@ -0,0 +1,49 @@
+! { dg-do compile }
+! Some errors pointed out in the development of the patch.
+!
+! Contributed by Tobias Burnus  <burnus@net-b.de>
+!
+module m
+  type :: date
+    private
+    integer :: yr, mon
+    integer,public :: day
+  end type
+  type :: dt
+    integer :: yr, mon
+    integer :: day
+  end type
+end module m
+
+  use m
+  type, extends(date) :: datetime
+    integer :: hr, min, sec
+  end type
+  type(datetime) :: o_dt
+
+  type :: one
+    integer :: i
+  end type one
+
+  type, extends(one) :: two
+    real :: r
+  end type two
+
+  o_dt%day = 5  ! VALID but failed in first version of EXTENDS patch
+  o_dt%yr  = 5  ! { dg-error "is a PRIVATE component of" }
+
+  t = two(one = one(4), i = 5, r=4.4) ! { dg-error "has already been set" }
+
+  call foo
+contains
+  subroutine foo
+    use m, date_type => dt
+    type, extends(date_type) :: dt_type
+    end type
+    type (dt_type) :: foo_dt
+    foo_dt%date_type%day = 1
+    foo_dt%dt%day = 1 ! { dg-error "not a member" }
+  end subroutine
+end
+
+! { dg-final { cleanup-modules "m" } }