re PR fortran/35824 (Overloading problems with derived type with allocatable array)

2008-11-30  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/35824
	* gfortran.dg/alloc_comp_assign_8.f90 : New test.

From-SVN: r142292

2 files changed, 55 insertions, 0 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6799a6d..fa68f2e 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2008-11-30  Paul Thomas  <pault@gcc.gnu.org>
+
+	PR fortran/35824
+	* gfortran.dg/alloc_comp_assign_8.f90 : New test.
+
 2008-11-29  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR middle-end/37843
diff --git a/gcc/testsuite/gfortran.dg/alloc_comp_assign_8.f90 b/gcc/testsuite/gfortran.dg/alloc_comp_assign_8.f90
new file mode 100644
index 0000000..ab4868d
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/alloc_comp_assign_8.f90
@@ -0,0 +1,50 @@
+! { dg-do run }
+!
+! Test the fix for PR35824, in which the interface assignment and
+! negation did not work correctly.
+!
+! Contributed by Rolf Roth <everyo@gmx.net>
+!
+module typemodule
+  type alltype
+     double precision :: a
+     double precision,allocatable :: b(:)
+  end type
+  interface assignment(=)
+    module procedure at_from_at
+  end interface
+  interface operator(-)
+    module procedure  neg_at
+  end interface
+contains
+  subroutine at_from_at(b,a)
+    type(alltype), intent(in) :: a
+    type(alltype), intent(out) :: b
+    b%a=a%a
+    allocate(b%b(2))
+    b%b=a%b
+  end subroutine at_from_at
+  function neg_at(a) result(b)
+    type(alltype), intent(in) :: a
+    type(alltype) :: b
+    b%a=-a%a
+    allocate(b%b(2))
+    b%b=-a%b
+  end function neg_at
+end module
+  use typemodule
+  type(alltype) t1,t2,t3
+  allocate(t1%b(2))
+  t1%a=0.5d0
+  t1%b(1)=1d0
+  t1%b(2)=2d0
+  t2=-t1
+  if (t2%a .ne. -0.5d0) call abort
+  if (any(t2%b .ne. [-1d0, -2d0])) call abort
+
+  t1=-t1
+  if (t1%a .ne. -0.5d0) call abort
+  if (any(t1%b .ne. [-1d0, -2d0])) call abort
+end
+
+! { dg-final { cleanup-modules "typemodule" } }