1 files changed, 41 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/operator_2.f90 b/gcc/testsuite/gfortran.dg/operator_2.f90
new file mode 100644
index 000000000..0e560dad7
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/operator_2.f90
@@ -0,0 +1,41 @@
+! { dg-do compile }
+! Test that we can't override intrinsic operators in invalid ways
+module foo
+
+ interface operator(*)
+  module procedure f1 ! { dg-error "conflicts with intrinsic interface" }
+ end interface
+
+ interface operator(>)
+   module procedure f2 ! { dg-error "conflicts with intrinsic interface" }
+ end interface
+
+ interface operator(/)
+  module procedure f3
+ end interface
+
+contains
+
+ function f1(a,b) result (c)
+  integer, intent(in) :: a
+  integer, dimension(:), intent(in)   :: b
+  integer, dimension(size(b,1))   :: c
+  c = 0
+ end function f1
+
+ function f2(a,b)
+   character(len=*), intent(in) :: a
+   character(len=*), intent(in) :: b
+   logical :: f2
+   f2 = .false.
+ end function f2
+
+ function f3(a,b) result (c)
+  integer, dimension(:,:), intent(in) :: a
+  integer, dimension(:), intent(in)   :: b
+  integer, dimension(size(b,1))   :: c
+  c = 0
+ end function f3
+
+end
+! { dg-final { cleanup-modules "foo" } }